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HTTP 403 Forbidden

The server understood the request but refuses to authorize it — valid credentials, insufficient permission.

4xx · Client error✗ not retryable — fix the request instead

In AI APIs specifically

Common causes: requesting a model your org has no access to, geo-blocked regions, or organization policies restricting an endpoint.

Fix checklist

  • Confirm your org/tier has access to the requested model.
  • Check API key scopes and workspace permissions.
  • Review provider trust-and-safety emails — access can be restricted after policy flags.

Spec: RFC reference

Related status codes

400 Bad Request

The server cannot process the request due to a client error — malformed JSON, invalid parameters, or schema violations..

401 Unauthorized

Authentication is missing or invalid for this request..

402 Payment Required

The request requires payment — billing is not set up or a balance is exhausted..

404 Not Found

The requested resource does not exist at this URL..

← All HTTP status codes