Question 1

What does HTTP 405 Method Not Allowed mean?

Accepted Answer

The HTTP method used is not supported for the requested resource. For example, trying to POST to a read-only endpoint or DELETE a resource that doesn't allow deletion.

Question 2

What causes an HTTP 405 Method Not Allowed error?

Accepted Answer

Using POST on an endpoint that only accepts GET. Trying to DELETE a read-only resource. API endpoint doesn't support the used HTTP method. Web form action pointing to wrong endpoint.

Question 3

How do I fix HTTP 405 Method Not Allowed?

Accepted Answer

Check the Allow response header for supported methods Review API documentation for the correct HTTP method Ensure your client is sending the right method (GET, POST, etc.)

Question 4

Is HTTP 405 a client error or server error?

Accepted Answer

405 is a Client Error response (4xx). The error is on the client side — the request contains bad syntax, refers to a missing resource, or lacks proper authentication. The server cannot or will not process the request.

Question 5

When does a server return HTTP 405?

Accepted Answer

A server returns HTTP 405 Method Not Allowed when: using post on an endpoint that only accepts get. This code belongs to the Client Error category (4xx).

HTTP 405 Method Not Allowed— What It Means, Causes & How to Fix It

Common Causes

How to Fix

Example

Related Client Error Codes

Commonly Referenced Status Codes

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