Polymarket API reference / CLOB API
GET/tick-size

Get tick size

Retrieves the minimum tick size (price increment) for a specific token ID. The tick size can be provided either as a query parameter or as a path parameter.

Base URL
https://clob.polymarket.com
Auth
Public, no key
Rate limit
9,000 req / 10s (900 per second)
Limit applies to
CLOB API general

Parameters

NameInTypeRequiredDescription
token_idquerystringyesToken ID (asset ID)

token_id is listed as optional in Polymarket's OpenAPI spec, but the API returns 400 without it (checked 2026-10-04).

Example

curl -X GET "https://clob.polymarket.com/tick-size?token_id=<token_id>"

Response fields

FieldTypeDescription
minimum_tick_sizenumberMinimum tick size (price increment)

Responses

StatusMeaning
200Successfully retrieved tick size
400Bad request - Invalid token id
404Not found - Market not found
500Internal server error

Errors this endpoint returns

Related endpoints

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.