The API for Polymarket
One endpoint for every event, market, position, trader, and more on Polymarket. Built for agents, traders, and developers.
Easy to Integrate
Start integrating our API in minutes.
Everything you need in one place
REST API for every event, market, position, trader, oracle event, series, tags, candlesticks, and more.
Websockets to stream trades, oracle events, price updates, and market changes in real time.
Webhooks to trigger on market launches, resolutions, price thresholds, and custom events.
TypeScript SDK with full type safety, autocompletion, and seamless integration into your codebase.
Indexing & Backfilling to load complete history and stream new data into your own database.
Ship with confidence at lightning speed
Focus on building your product and idea, not the infrastructure. Struct handles the rest.
Build prediction market trading interfaces powered by real-time Polymarket data.
Power autonomous agents that research, monitor, and trade on prediction markets.
Build dashboards, run quantitative research, and analyze prediction market data at scale.
Build faster with the help of AI
We made it easy to integrate our APIs, Webhooks, SDKs, and more using your existing AI tools.
Connect AI assistants like Claude, Cursor, and Codex directly to live prediction market data through the Model Context Protocol.
Install the Struct skill in Claude Code to scaffold integrations, generate API calls, and work with our SDK using natural language.
If opted in, AI Optimized Responses automatically truncate unnecessary fields, reducing token usage and keeping AI context windows clean.