HTTP status codes

HTTP status codes the server can generate in response to HTTP requests:

200 OK: Successful request.
400 Bad Request: Invalid argument (invalid request payload).
403 Forbidden: Permission denied (e.g. invalid API key).
429 Resource Exhausted: Either out of resource quota or reaching rate limiting.
500 Internal Server Error: Internal server error (retry your request).
503 Service Unavailable: Unavailable.
504 Gateway Timeout: Deadline exceeded (retry your request).

Possible reasons for receiving HTTP status code 400 Bad Request:

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Last updated 2026-07-29 UTC.