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GET
Get a venue's display info and full capability set

Authorizations

X-Client-Id
string
header
required

Credential client id (kairos_ck_...). Must be sent together with X-Api-Key and X-Api-Secret.

X-Api-Key
string
header
required

64-char hex API key.

X-Api-Secret
string
header
required

64-char hex API secret.

Path Parameters

exchange_id
string
required
Example:

"polymarket"

Response

Venue info.

Response for GET /exchanges/{exchange_id}.

id
string
required

Echoes the id you asked for verbatim — NOT canonicalized. Use capabilities.exchange_id for the canonical value.

name
string
required
is_active
boolean
required
capabilities
object
required

What a venue supports. This is the authoritative source for the per-venue constraints POST /orders enforces — a time_in_force outside supported_tif, or post_only on a venue with supports_post_only: false, is rejected with 400, never silently downgraded.

Current production values:

kalshi_offchain is a deprecated alias that canonicalizes to kalshi.