HTTP 500 Internal Server Error

The server failed and cannot say anything more useful. Nothing about the request needs to be wrong.

Why you would test it

Nearly impossible to provoke on demand against a healthy API, which is why retry, fallback and error-reporting paths so often ship untested.

Endpoints that return 500

2 endpoints in this playground answer with 500. Every one is free, needs no signup, and can be called from the browser or with curl.

• GET https://funapi.dev/api/pizza/v1/oven/status — Always. The oven is on fire. (Pizza Orders API)
• GET https://funapi.dev/api/faults/v1/target — Configured failure (Fault Injection API)

Other server error codes

• 503 Service Unavailable
• 504 Gateway Timeout

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