Bid-ask spread
Markets
Bid-ask spread
GET
Bid-ask spread
Authorizations
Solana Tracker Data API key
Path Parameters
Market ticker or condition id
Query Parameters
kalshi, polymarket, or poly
Response
Spread
Spread for a market.
True when the value is derived/estimated rather than authoritative.
Serving source: indexed, upstream, unavailable.
True when the payload is older than the freshness SLO.
Available options:
polymarket, kalshi Local index timestamp when known.
Upstream/source event timestamp when known.
Why the payload is missing or incomplete.