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Polymarket API reference / Data API v1
GET/

Data API Health check

Base URL
https://data-api.polymarket.com
Auth
Public, no key
Rate limit
1,000 req / 10s (100 per second)
Limit applies to
Data API general

Things to know

Data API v1 has been frozen since 4 September 2026. It still answers, but new fields and endpoints only go to v2.

Example

curl -X GET "https://data-api.polymarket.com/"

Response fields

FieldTypeDescription
datastring

Responses

StatusMeaning
200OK
Polymarket's API serves current state only, so it cannot show what a market's book looked like after it resolved. PolyTest records Up/Down markets while they run and keeps the snapshots. Try it free, or read the full rate limit reference.

From Polymarket's published OpenAPI spec and rate-limit tables, synced 2026-10-04.