Overview - Polymarket Documentation

APIs

The RFQ Trades Partner API settles trades that your platform matched off Polymarket, over HTTP for requests and over WebSocket for trade status. Access is by invitation: see the Institutional Overview for who it is for and how to request access.

HTTP API

https://external-rfq-partner.polymarket.comValidate, prepare, submit, and read RFQ trades.

WebSocket API

wss://external-rfq-partner.polymarket.com/v1/ws/rfq-tradesStream your trades’ status changes.

The testing environment’s base URL is shared during onboarding, together with test API keys for that environment.

Before You Integrate

Authentication

Sign every request with your partner API key.

Trade Flow

Find a market, then validate, sign, submit, and track a trade.

Errors

Read the error envelope and every rejection reason.

​APIs