polymarket

Search the Gamma API public-search endpoint with your query, then parse the returned events and nested markets. The outcomePrices field contains Yes/No prices between 0 and 1, which represent probabilities you can format as percentages.

Use the CLOB API at clob.polymarket.com with the market's clobTokenIds for orderbook data and its conditionId for price history. Both identifiers come from the Gamma API market objects as JSON-encoded strings.

No authentication is needed for read-only data. The Gamma, CLOB, and Data APIs are publicly accessible for querying markets, prices, orderbooks, and trades. Only placing trades requires wallet-based EIP-712 signatures.

No, this skill is read-only and does not support placing trades. Trading requires wallet-based crypto authentication with EIP-712 signatures, which is outside the scope of these public data endpoints.

The Gamma API returns outcomePrices, outcomes, and clobTokenIds as JSON strings inside JSON responses, so they are double-encoded. Parse them with json.loads(market['outcomePrices']) to get the actual array before use.

Rate limits are generous: Gamma allows 4,000 requests per 10 seconds, CLOB allows 9,000, and Data allows 1,000. Normal usage is unlikely to hit these limits.