Look up venue market outcomes by external identifier

GEThttps://api.agg.market/venue-market-outcomes

Resolves venue-side outcome keys (e.g. Polymarket token_id) to AGG outcomes, including matchedVenueMarketOutcomes counterpart references across venues. Batch up to 20 keys. Outcome keys are globally unique, so venue is optional and narrows only. Kalshi carries its ticker on exactly one of the two outcomes per market, so Kalshi No-side outcomes cannot be resolved here — fetch the market via GET /venue-markets?venue=kalshi&externalIdentifier= and read both outcomes from it.

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Authorizations

appIdstringheaderrequired

API key passed in the header.

Query Parameters

externalIdentifieranyrequired

Response

application/json

200

dataarray<object>required

data.idstringrequired

data.venueMarketIdstringrequired

data.externalIdentifierstring

data.labelstringrequired

data.titlestring

data.pricenumberdeprecated

No longer returned. Fetch live prices from GET /midpoints (pass this outcome's parent venueMarketId in ids and match on outcomes[].venueMarketOutcomeId), or subscribe to the WebSocket midpoint stream.

Required range: x >= 0, x <= 1

data.winnerboolean

data.matchedVenueMarketOutcomesarray<object>

data.matchDecisionobject

nextCursorstringrequired

hasMorebooleanrequired