API ReferenceMatched Markets
Deprecated legacy alias of fetchMarketMatches (identical request/response shape). Router only.
const url = 'https://data.predictefy.com/api/router/fetchMatches?relation=identity&sort=similarity';const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
try { const response = await fetch(url, options); const data = await response.json(); console.log(data);} catch (error) { console.error(error);}curl --request GET \ --url 'https://data.predictefy.com/api/router/fetchMatches?relation=identity&sort=similarity' \ --header 'Authorization: Bearer <token>'FetchMatches is deprecated in favor of fetchMarketMatches; served here as an exact alias for drop-in compatibility with identical delegation. Same lookup/browse modes, same dark gate (READS_ENABLE_CLUSTERS). Prefer fetchMarketMatches in new code. See /api/{exchange}/fetchMarketMatches.
Authorizations
Section titled “Authorizations”Parameters
Section titled “Parameters”Path Parameters
Section titled “Path Parameters”Must be router for this cross-venue operation. Market anchors must use the canonical venue:marketId form; event anchors must use the canonical venue:eventId form.
Query Parameters
Section titled “Query Parameters”Canonical id "{venue}:{marketId}". Presence switches to lookup mode.
Venue slug (cross-venue collisions answer 400 — use marketId).
Minimum similarity score. minConfidence is accepted as a backward-compatible alias.
Backward-compatible alias for minSimilarity.
Comma-separated relation filters: identity, subset, superset.
Comma-separated venues. Browse returns pairs where at least one leg is a listed venue. Lookup identity rows filter the related market. Lookup relation rows match when either the anchor or the related market is on a listed venue.
Browse-only comma-separated venues; repeated parameters are joined. Both legs must be listed. Every entry must be served and non-sandbox on this deployment. Non-served or sandbox entries return 400 VALIDATION_ERROR naming them and listing served venues, before the two-distinct-venues check. Requires at least two distinct venues, otherwise 400 VALIDATION_ERROR. Accepted lists are echoed in meta.pairVenues after trimming and de-duplication in request order. pairVenues VALIDATION_ERRORs take precedence over lookup NOT_SUPPORTED. With marketId or slug, a valid pairVenues list returns 400 NOT_SUPPORTED. Combines with venue/venues; both conditions apply. Identity totals count clusters with at least two servable listed legs. A served-price overlay gap can still drop a leg on price-pair routes. Relation totals count qualifying edges. sort=priceDifference still ranks by the whole cluster spread.
Accepted for backward-compatible raw-pair mode; this surface already emits pairwise rows.
Offsets above the maximum are rejected; use cursor pagination for deep walks.
Responses
Section titled “Responses”A page of indicative cross-venue matches (fetchMarketMatches alias).
object
object
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
Null means the venue publishes no such figure; 0 is a real venue-published zero
Metric-specific provenance for volume24h. venue is published by the venue; derived_cumulative is Predictefy-derived from cumulative snapshots; derived_tape is Predictefy-derived from captured fills. A derived value must carry this field.
The finite volume24h value when the venue registry unit is USD or USDC. USDC is counted at par (1 USDC = 1 USD), with no exchange-rate conversion. Null for contracts, COLLATERAL, CASH, unsupported or unknown units, or non-finite or missing values. Also null when the stored unit disagrees with the venue's declared unit.
Registry unit of the unchanged native volume24h. USD maps to usd, USDC to usdc, and CONTRACTS to contracts. All other or unknown units map to null. A stored unit that disagrees with the venue's declared unit also maps to null.
Venue-mode volume uses only snapshot_fetched_at, so the hot and SQL lanes report the same snapshot fetch time. Derived volume uses volume_24h_meta.asOf, falling back to windowEnd. Derived-venue volume and its timestamp can lag in the hot lane until the next full catalog resync. Null when unknown. Never the row write time, response time, or live price overlay time.
This is the oldest evaluation instant among this market's enriched outcomes, including the 6h/24h windows. It records when the price changes were evaluated, not when the batch finished or the current quote was measured. Failed refreshes retain the previous evaluation instant. It is null when no outcome is enriched or in the SQL lane, where price changes are omitted.
Null means the venue publishes no such figure; 0 is a real venue-published zero
Known-absent is null; this key is always emitted for market records.
Known-absent is null; event/parent artwork is distinct from market artwork.
The picture to show. It is the venue's art when it has any, else a stored substitute (see imageSource). Known-absent is null; this key is always emitted; null until the image-resolve stage has written this market. Thumbnail rule imageResolved ?? image ?? eventImage.
Why imageResolved is what it is (see ImageSource); null exactly when imageResolved is null.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
object
Venue-rest — per-request REST via the venue adapter (the default stamp for every venue). predictefy-live — served from the live WebSocket hub or live order book; SX Bet overlay-bridge rows use this explicit source. fixture — offline sample data, never production venues. overlay — a serve-time catalog price overlay replaced the stored snapshot price for a fresh price-refresher entry.
Market capability flags. history is true only when Predictefy's history coverage for the venue is proven under docs/history-coverage.md; it is independent of venue-native history endpoints and the hosted fetchOHLCV route's availability.
object
True when the venue exposes real order-book depth rather than an emulated or synthetic top-of-book (such as a single level synthesized from spot price, AMM pool, parimutuel odds, or P2P offer odds). Does not imply tradeable.
Present in browse mode only (the other side of the pair); absent in lookup mode for backward compatibility.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
Null means the venue publishes no such figure; 0 is a real venue-published zero
Metric-specific provenance for volume24h. venue is published by the venue; derived_cumulative is Predictefy-derived from cumulative snapshots; derived_tape is Predictefy-derived from captured fills. A derived value must carry this field.
The finite volume24h value when the venue registry unit is USD or USDC. USDC is counted at par (1 USDC = 1 USD), with no exchange-rate conversion. Null for contracts, COLLATERAL, CASH, unsupported or unknown units, or non-finite or missing values. Also null when the stored unit disagrees with the venue's declared unit.
Registry unit of the unchanged native volume24h. USD maps to usd, USDC to usdc, and CONTRACTS to contracts. All other or unknown units map to null. A stored unit that disagrees with the venue's declared unit also maps to null.
Venue-mode volume uses only snapshot_fetched_at, so the hot and SQL lanes report the same snapshot fetch time. Derived volume uses volume_24h_meta.asOf, falling back to windowEnd. Derived-venue volume and its timestamp can lag in the hot lane until the next full catalog resync. Null when unknown. Never the row write time, response time, or live price overlay time.
This is the oldest evaluation instant among this market's enriched outcomes, including the 6h/24h windows. It records when the price changes were evaluated, not when the batch finished or the current quote was measured. Failed refreshes retain the previous evaluation instant. It is null when no outcome is enriched or in the SQL lane, where price changes are omitted.
Null means the venue publishes no such figure; 0 is a real venue-published zero
Known-absent is null; this key is always emitted for market records.
Known-absent is null; event/parent artwork is distinct from market artwork.
The picture to show. It is the venue's art when it has any, else a stored substitute (see imageSource). Known-absent is null; this key is always emitted; null until the image-resolve stage has written this market. Thumbnail rule imageResolved ?? image ?? eventImage.
Why imageResolved is what it is (see ImageSource); null exactly when imageResolved is null.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
object
Venue-stated art for this outcome (a team logo on a sports leg), https, stored as its parsed href; omitted when the venue states none.
Stable binary side when asserted by the venue; omitted otherwise.
What the numeric price represents at the venue.
venue-composite: Venue-provided composite price whose inputs are not decomposed here.mid: Midpoint of the best bid and best ask.ask: Best ask or equivalent venue buy price.bid: Best bid or equivalent venue sell price.last-trade: Most recent executed trade price.amm-spot: Current AMM spot probability.pool-share: Outcome pool divided by the total parimutuel pool.odds-implied: Probability implied by venue odds.complement: Synthesized as one minus the paired outcome price.
Absolute probability delta versus one minute ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus five minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus 15 minutes ago, from the newest top-of-book tape tick (tob_ticks.last) at or before the boundary. On a snapshot-enriched outcome this field is always present; null means no reference tick exists and never means zero. This window has no freshness tolerance.
Absolute probability delta versus one hour ago, from the newest stored close at or before the boundary within the 3h lookback. The lookup uses a 1m candle first, with a 1h fallback. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus six hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus 24 hours ago, using a 1m candle first, with a 1h fallback, at or before the boundary within the 4h preferred lookback. Otherwise, use the newest close at or before the boundary within the 12h lookback, only when the same outcome's first write-forward 1m candle after the boundary up to now has the same close and lands within 12 hours after the older reference. On a snapshot-enriched outcome this field is always present; null means no eligible reference exists and never means zero.
Absolute probability delta versus seven days ago, from the newest stored close at or before the boundary within the 12h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Absolute probability delta versus 30 days ago, from the newest stored close at or before the boundary within the 24h lookback. Candle resolution preference is 1h, then 1d, then 1m. On a snapshot-enriched outcome this field is always present; null means no fresh-enough reference exists and never means zero.
Per-outcome tape coverage metadata. Null when unknown (no market_coverage row for this outcome, or not yet computed). Present only alongside the priceChange fields above (the hot snapshot path for open, active, priced outcomes).
object
How this outcome's book tape is captured.
When continuous tape coverage began for this outcome; null if unknown.
Measured effective observation interval in milliseconds (REST-polled venues); null for WebSocket venues or when unmeasured.
Count of detected tape gaps in the last 24 hours.
When the most recent tape gap was detected; null if none recorded.
object
object
Venue-rest — per-request REST via the venue adapter (the default stamp for every venue). predictefy-live — served from the live WebSocket hub or live order book; SX Bet overlay-bridge rows use this explicit source. fixture — offline sample data, never production venues. overlay — a serve-time catalog price overlay replaced the stored snapshot price for a fresh price-refresher entry.
Market capability flags. history is true only when Predictefy's history coverage for the venue is proven under docs/history-coverage.md; it is independent of venue-native history endpoints and the hosted fetchOHLCV route's availability.
object
True when the venue exposes real order-book depth rather than an emulated or synthetic top-of-book (such as a single level synthesized from spot price, AMM pool, parimutuel odds, or P2P offer odds). Does not imply tradeable.
Identity rows carry the delist-stable cluster id. Stored subset/superset edge rows carry null.
Relation type. overlap/disjoint are not emitted until a verified classifier supports them.
Uncalibrated similarity score — lookup mode: member-to-anchor; browse mode: cluster-level. NEVER "confidence".
Null for identity membership; stored subset/superset edges may carry producer reasoning.
Compatibility key; ALWAYS null — no live books here.
Compatibility key; ALWAYS null — no live books here.
Stored data-as-of (cluster computed_at). Never live.
object
Present on archive-backed trade pages; earliest/latest archived trade for this outcome.
object
object
Present when page.total came from the exact background totals matrix.
Present if and only if page.total is null, explaining why the total is missing. Distinguishes "nothing matched" (total 0) from "your page was served but its matches were not counted" (total null).
object
Venue-rest — per-request REST via the venue adapter (the default stamp for every venue). predictefy-live — served from the live WebSocket hub or live order book; SX Bet overlay-bridge rows use this explicit source. fixture — offline sample data, never production venues. overlay — a serve-time catalog price overlay replaced the stored snapshot price for a fresh price-refresher entry.
Applied pairVenues filter, trimmed and de-duplicated in request order. Every entry is served and non-sandbox on this deployment. Present only when pairVenues was supplied and accepted, including on empty pages.
object
Total matching rows, or null when the total was NOT computed — never a fabricated 0. The data page is the product and the count is metadata, so routes may warm an exact total off-request or abandon a count that exceeds its short budget while the page is still served. null is always accompanied by meta.totalUnavailable, which says why; use hasMore / nextCursor to walk the result set.
Whether another page exists. Determined by fetching one row beyond the requested limit, so it stays correct even when total is null.
Opaque cursor for the next page. Omitted on the final page.
Example
{ "data": [ { "market": { "outcomes": [ { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } } ], "volume24hSource": "venue", "volume24hUnit": "usd", "imageSource": "venue", "yes": { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } }, "no": { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } }, "up": { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } }, "down": { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } }, "provenance": { "source": "venue-rest" } }, "sourceMarket": { "outcomes": [ { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } } ], "volume24hSource": "venue", "volume24hUnit": "usd", "imageSource": "venue", "yes": { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } }, "no": { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } }, "up": { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } }, "down": { "side": "yes", "priceBasis": "venue-composite", "coverage": { "mechanism": "ws-lossless" } }, "provenance": { "source": "venue-rest" } }, "relation": "identity" } ], "meta": { "provenance": { "source": "venue-rest" } }}VALIDATION_ERROR for a non-router exchange; unsupported relation/relations (including overlap/disjoint); invalid sort, minSimilarity/minConfidence, updatedSince, or pagination (limit/offset/page); or invalid pairVenues. An ambiguous lookup slug also returns VALIDATION_ERROR. NOT_SUPPORTED for url, includePrices, or order-book filters (withOrderbook, withOrderBook, requireOrderbook, requireOrderBook). In lookup mode, pairVenues with marketId or slug returns NOT_SUPPORTED only after pairVenues validation succeeds. Non-served or sandbox pairVenues entries are named in VALIDATION_ERROR messages, which list only served, non-sandbox venues. Fewer than two distinct pairVenues also returns VALIDATION_ERROR.
object
object
Always present on errors; quote this id when reporting a failed request.
Present only when a venue error is attributed to a specific exchange.
Example
{ "success": false, "error": { "code": "VALIDATION_ERROR" }}The API key is missing, unknown, or revoked. A venue-authenticated read also answers 401 when the venue itself rejects the credential. Not retryable.
object
object
Always present on errors; quote this id when reporting a failed request.
Present only when a venue error is attributed to a specific exchange.
Example
{ "success": false, "error": { "code": "VALIDATION_ERROR" }}The account's credit balance cannot cover this endpoint's weight. Not retryable.
object
object
Always present on errors; quote this id when reporting a failed request.
Present only when a venue error is attributed to a specific exchange.
Example
{ "success": false, "error": { "code": "VALIDATION_ERROR" }}The API key lacks the scope this route requires, or the account's plan does not include the feature. Not retryable.
object
object
Always present on errors; quote this id when reporting a failed request.
Present only when a venue error is attributed to a specific exchange.
Example
{ "success": false, "error": { "code": "VALIDATION_ERROR" }}The route does not exist, or the requested venue, market, event, cluster, outcome, or snapshot was not found. error.code names which. Not retryable.
object
object
Always present on errors; quote this id when reporting a failed request.
Present only when a venue error is attributed to a specific exchange.
Example
{ "success": false, "error": { "code": "VALIDATION_ERROR" }}Rate limit exceeded. The response carries Retry-After in whole seconds, always rounded up so a sub-second remainder never points back inside the live window.
object
object
Always present on errors; quote this id when reporting a failed request.
Present only when a venue error is attributed to a specific exchange.
Example
{ "success": false, "error": { "code": "VALIDATION_ERROR" }}Unexpected internal error. Retryable; error.requestId identifies the failure.
object
object
Always present on errors; quote this id when reporting a failed request.
Present only when a venue error is attributed to a specific exchange.
Example
{ "success": false, "error": { "code": "VALIDATION_ERROR" }}MATCHES_UNAVAILABLE (dark lane) / CATALOG_UNAVAILABLE (store outage)
object
object
Always present on errors; quote this id when reporting a failed request.
Present only when a venue error is attributed to a specific exchange.
Example
{ "success": false, "error": { "code": "VALIDATION_ERROR" }}