Resolved Markets

Resolved Markets is a data API for prediction markets. We hold a persistent

WebSocket fleet against Polymarket's CLOB and capture a full-depth orderbook

snapshot every time the book changes — upto roughly 20 per second per token — plus

every trade. The result is the order-level history

Polymarket itself doesn't expose: not just the last price, but the entire book,

with Polymarket's own event timestamps and sequence numbers preserved so you can

measure latency and detect gaps rather than trust ours.

Coverage goes well past crypto. BTC, ETH, SOL, XRP, DOGE, HYPE and BNB up/down

markets from 5m to 1d, plus sports, weather, economics, equities and social —

and Hyperliquid perpetual orderbooks captured alongside them, so you can line a

prediction market up against its underlying.

Query it however you work: REST for history, aggregates and settled outcomes;

WebSocket for live streams; or MCP, so Claude or any MCP-compatible agent can

pull live books and resolved results straight into a conversation. A backtesting

engine runs strategies against the captured data, with an AI agent that writes

and runs the backtest for you.

Built for quants, prediction-market traders, researchers, and anyone building

agents that need to reason about real market microstructure instead of a price

chart. Free tier to start; paid plans from $17/mo, card or crypto.