HTTP 406 Not Acceptable

The server cannot produce a representation matching your Accept header.

Why you would test it

Worth provoking if your client sends a narrow Accept header, because the failure looks like a server fault and is actually a negotiation failure.

Endpoints that return 406

2 endpoints in this playground answer with 406. Every one is free, needs no signup, and can be called from the browser or with curl.

• GET https://funapi.dev/api/friends/v1/friends/characters — Accept header requests an unsupported media type (Friends API)
• GET https://funapi.dev/api/protocol/v1/export/documents — Unsupported Accept value (Protocol Lab API)

Other client error codes

• 400 Bad Request
• 401 Unauthorized
• 402 Payment Required
• 403 Forbidden
• 404 Not Found
• 405 Method Not Allowed
• 409 Conflict
• 410 Gone

All HTTP status codes · All 37 mock REST APIs · Getting started guide