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Client Error (4xx)

HTTP/1.1

408 Request Timeout

The server timed out waiting for the client to complete the request.

CategoryClient Error (4xx)
API error types1 error schema
Related headers0 headers
Updated2026-07-09

What does HTTP status code 408 mean?

The 408 Request Timeout status code indicates that the server did not receive the complete request payload from the client within its configured timeout window.

When to use it in APIs

Use when a client establishes a connection but stalls while sending the request body, or fails to complete the request headers in a timely manner.

How it compares to other codes

  • 504 Gateway Timeout: Represents a timeout upstream (server-side), whereas 408 is a timeout on the client’s connection stream.

Problem types for 408

1