OpenSkin API endpoint

Read the current CS2 market index

GET /v2/market-index/cs2

Returns the latest successful cs2.chain-equal-weight.v1 index calculation for one marketplace and, optionally, one segment. The response includes the latest point and the data needed to reproduce the calculation.

Authentication

Send a Platform API key with permission to use this endpoint in the X-API-Key header.

Parameters

NameLocationRequiredDescription
marketplacequeryYesSee the OpenAPI schema for accepted values.
segmentqueryNoSee the OpenAPI schema for accepted values.
valuequeryNoExact segment value; required with segment.
methodologyqueryNoSee the OpenAPI schema for accepted values.

Response meaning

200
Newest successful completed index calculation
400
Invalid source, segment, or methodology
401
V2Unauthorized
403
V2Forbidden
404
No successful calculation matches the exact query

Request example

curl 'https://api-v2.openskin.dev/v2/market-index/cs2?marketplace=steam'\
  -H 'X-API-Key: osk_live_...' 

Limits and retries

Check the listed status codes before retrying. If a request uses a unique request key, reuse that key only when repeating the same request. If a list returns next_cursor, send it unchanged in the next request.

Last updated .