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2s Predict Markets
x402
2s Predict Markets is a paid API for AI agents from 2s.io, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-13).
Fetches a paginated list of prediction market listings filterable by activity, closure status, tag, and sortable by volume, liquidity, or date.
Price / call$0.0025
Success—
StatusUnknown
How this service works
Browse Polymarket prediction markets. Filter by active/closed, order by volume/liquidity/endDate, page with limit/offset. Each market returns its question, outcomes + live outcome prices (implied probabilities), CLOB token ids (use with predict.price / predict.orderbook / predict.price-history), USD volume + liquidity, open/close dates, and the Polymarket URL. Read-only mirror of Polymarket's public market list.
Output
A paginated list of prediction market records including metadata such as market name, tag, volume, liquidity, start date, and end date, filtered and ordered according to the requested parameters.
Example use cases
Example prompt
“Show me the top 20 most active prediction markets right now, sorted by volume in descending order, only open ones — no closed markets.”
Technical details
Endpoint
GEThttps://2s.io/api/predict/marketsWhen to prefer
Use this endpoint when you need to discover or browse prediction markets with flexible filtering by active/closed status, topic tag, or sort by trading metrics like volume or liquidity. Prefer this over general finance endpoints when specifically looking for crowdsourced probability or forecasting markets.
Side effects
- Invalid query parameter value (e.g. order value not in enum) returns 400 bad request
- limit exceeds maximum of 100 returns validation error
- Payment not included or insufficient USDC via x402 returns 402 Payment Required
- offset out of range returns empty result set
- tagId not found returns empty list
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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