Polymarket API (CLOB / Gamma) by Polymarket

Read prediction-market data (Gamma, Data API) and place or cancel orders on Polymarket's CLOB.

Price

not published

see the official pricing page

Free tier

SDK downloads

—

npm @polymarket/client · PyPI polymarket-client

Status

—

Pricing

Free tier	—
Cheapest paid plan	—
Usage price	No API fee stated; taker fee = C × feeRate × p × (1 - p), feeRate 0.04-0.07 by category (Geopolitics 0); makers pay no fees
Good to know	Rate limits are per IP (e.g. CLOB general 9,000 req / 10s, Gamma 4,000 req / 10s). Polymarket US has separate docs (docs.polymarket.us).

From the official pricing page, checked Oct 10, 2026. Prices change: confirm before you buy.

MCP server	Community servers only
npm	`npm install @polymarket/client`
PyPI	`pip install polymarket-client`

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