public-pm-data

Biggest resolved-market surprises ("flips")

Keyless "surprise index": resolved BINARY (exactly two outcomes) markets whose eventual winner was priced under 50 (of 100) roughly 24 hours before settlement, ordered by the lowest T-24h winner probability first. Only provider-resolution-basis events qualify; multi-strike ladder markets are excluded because their non-leading strikes are structurally near zero and are not a real surprise signal. Same resolvedAt/closedAt honesty rule as /resolved: resolvedAt is populated only when provider-verified.

surprise.t24hProbability and surprise.t7dProbability are the WINNING outcome's probability, 0-100 points, at T-24h and T-7d before resolution. t7dProbability is frequently null — not every market has 7 days of pre-resolution history.

get/api/prediction-markets/surprises

Request

  • Base URL: https://api.coinrithm.com
  • URL: https://api.coinrithm.com/api/prediction-markets/surprises
  • Auth: none required

Query parameters

limitinteger
offsetinteger
fiatstring
source'polymarket' | 'kalshi' | 'rothera' | 'limitless' | 'smarkets' | 'manifold' | 'metaculus' | 'predictit' | 'futuur' | 'myriad' | 'forecastex' | 'gemini'
window'7d' | '30d' | '90d' | 'all'

Resolved-recency filter. Unknown/absent values are served as all, never rejected.

Response

Paginated surprise-index rows

windowstring required

The window applied, echoed from the request (7d, 30d, 90d or all; unknown requests are served as all).

Changes

No recorded changes to this operation across all 1 revision of this API.