Finance — entry 043 of 47
Tradier
Tradier's brokerage API exposes US equity and options order execution, account management, and both REST and WebSocket market-data streaming, gated behind a free Tradier brokerage account (a paper-trading sandbox is included) rather than a separate API fee. Real-time data and unlimited equity trades are reserved for funded accounts and the optional $10/month Pro plan; the sandbox otherwise defaults to the industry-standard 15-minute-delayed quotes. A live probe of the real API host (api.tradier.com) returned `Access-Control-Allow-Origin: *`, re-confirming the previously-recorded CORS support.
GreatAPIs Score
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<a href="https://greatapis.com/api/tradier/"><img src="https://greatapis.com/badge/tradier.svg" alt="Scored 74 on greatapis.com"></a>Auth quickstart
- Register an app / run the OAuth flow to obtain a bearer token.
- Send it as an Authorization header
Authorization: Bearer <token>
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
120 requests/minute per access token for standard resources and market data in production (60/minute in sandbox and for trading), per docs.tradier.com/docs/rate-limiting, enforced via X-Ratelimit-* response headers