Live endpoint probe

API Endpoint Checker — Is Your API Up?

Status code, latency, redirects + content type for the exact URL. Free.

Tests the exact endpoint path, including query strings.

Reading API results

200 + JSON
Healthy — endpoint answered with data.
401 / 403
Reachable but refused the probe — key, OAuth scope, or bot rules. Up for authorized callers.
404
Server up, route doesn't exist — check the path version (/v1 vs /v2).
429
Rate-limited — back off and retry with the vendor's window.
500 / 502 / 504
Origin failing — the API is having an incident.

Checking a website instead? Uptime checker → · Watching prices? Live markets → · Learn: HTTP vs DNS vs SSL →