OpenAPI
The CuteMarkets options and stocks APIs have a published OpenAPI 3.1 specification:
Use it with API clients, code generators, docs tools, or agent frameworks that can ingest OpenAPI.
Authentication
The spec uses a bearer security scheme for API keys:
Authorization: Bearer YOUR_API_KEY
Scope
The specification covers the documented REST market-data surface:
- option chains and contract snapshots
- contract reference lookups
- options trades and quotes
- stock snapshots, movers, and ticker reference
- stock trades and quotes
- aggregate bars, previous-day bars, and open-close snapshots
- SMA, EMA, MACD, and RSI indicators
- ticker search and expiration lookup
The WebSocket gateway is documented separately in WebSockets, because OpenAPI does not model the live streaming protocol.
Base URLs
Production:
https://api.cutemarkets.com
Local development:
http://localhost:8000