What is Polymarket CLOB API?
Official CLOB API for prices and order books, plus authenticated order placement and management; unlike the Data API, trading requires signed credentials.
Commercial relationships: Operator ownership: not confirmed; Sponsorship: not confirmed; Affiliate links: not confirmed
What you can do
Start with the official API guide; use the CLOB documentation for public order-book reads. Private orders need wallet signing and L2 API credentials; use official instructions and keep secrets out of client code.
Who it may fit and what to check
Read order books before considering account/order integration. Public reads and authenticated private orders have different access requirements.
Features and coverage
Read prices and order books
Place and manage signed orders with authenticated credentials
- Read prices and order books
- Place and manage signed orders with authenticated credentials
Pricing and total cost
Pricing not confirmed
API-specific pricing was not established by this source review. Public data reads and trading-related venue fees must not be conflated.
Getting started
Start with the official API guide; use the CLOB documentation for public order-book reads. Private orders need wallet signing and L2 API credentials; use official instructions and keep secrets out of client code.
Sources and review notes
Source review is not a product test
Official Polymarket API guide checked 28 September 2026; archived source capture reviewed 7 September 2026. Documentation access is not an authenticated API test. No credentials, signatures or orders were used.
- primary-product-or-repository · docs.polymarket.com · checked 2026-09-07T11:19:10.285540+00:00
- Official source checked for package 5 · docs.polymarket.com · checked 2026-09-28
What to check
- No signed request or trade was executed; protect wallet signing keys and API credentials.
- API-specific pricing was not established; venue trading fees are separate.
Related tools to investigate
Shared categories do not establish that products are interchangeable.
Build Polymarket on-chain analytics pipelines with Goldsky's v2 datasets; legacy public subgraphs are incomplete after the April 2026 migration.
Commercial relationships: Operator ownership: not confirmed; Sponsorship: not confirmed; Affiliate links: not confirmed
Official Polymarket Data API for positions, account activity and market participation; distinct from the CLOB order-book and trading API.
Commercial relationships: Operator ownership: not confirmed; Sponsorship: not confirmed; Affiliate links: not confirmed