HTTP Reference
HTTP 405 Method Not Allowed
HTTP method is not supported for the target resource.
HTTP 405 is in the client error class. Use this page to diagnose likely causes, validate request or upstream behavior, and decide what to fix first. The sections below are intentionally practical so you can move from status-code recognition to concrete debugging actions without leaving this reference flow.
Common Causes
- This client error response indicates the request should be corrected before retrying.
- Typical trigger for 405 Method Not Allowed in API traffic.
- Mismatch between request expectations and endpoint/runtime behavior.
Debugging Notes
- Inspect request method, headers, and payload against endpoint contracts.
- Check edge proxy logs and application logs for correlated request IDs.
- Verify retry/backoff and timeout strategy for this response category.
What To Do Next
- Correct request/auth input and retry safely.
- Improve client validation and error messaging.
- Capture structured failure details for support workflows.
Prioritize request validation, auth scope checks, and reproducible client-side test cases.
Example Response
{
"status": 405,
"message": "method not allowed"
}Related Tools
Operational Context
One status code can appear for multiple reasons depending on routing layer, service topology, and policy configuration. Always pair code-level interpretation with request identifiers, deployment timestamps, and upstream dependency metrics before deciding on remediation. That context helps avoid false fixes and reduces repeated incidents.
For long-term reliability, add automated coverage for this status behavior in both happy-path and failure-path tests. Teams that document expected status responses per endpoint usually resolve production issues faster because triage starts from known contracts instead of assumptions.