{"entry":{"slug":"restful-api-dev","name":"Restful API dev","category":"api","summary":"Free CRUD sandbox that really persists objects: create, read, update and delete JSON objects over REST, no key required.","description":"Unlike read-only fixture services, api.restful-api.dev actually stores what an agent writes: POST /objects creates an object with an arbitrary JSON payload, GET /objects lists them, GET/PUT/PATCH/DELETE /objects/{id} operate on one. That makes it the right target for testing a full create-read-update-delete cycle, idempotency and error handling before pointing an agent at a production API.","auth_mode":"none","endpoint":"https://api.restful-api.dev/objects","docs_url":"https://restful-api.dev/","tags":["test","testing","crud","sandbox","rest","devtools"],"capabilities":["create read update delete json objects","test a full crud cycle","test error handling","store throwaway test data"],"auth_params":[],"input_format":"HTTP GET/POST/PUT/PATCH/DELETE with JSON body","output_format":"JSON","rate_limit":"No published quota; free shared sandbox. Do not use for real data and keep polling light.","pricing":"Free, no account.","invocation_example":"curl -s https://api.restful-api.dev/objects","verified":false,"verified_at":null,"featured":false,"checks_total":59,"checks_ok":59,"avg_latency_ms":105,"reports_count":0,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-11-04T20:17:08.826+00:00","health_latency_ms":119,"probe_url":"https://restful-api.dev/"},"watch":{"hint":"Follow \"restful-api-dev\": get alerted when it goes down, comes back, or changes shape. Free, 3 tools per key. Email follows are confirmed by a one-click email before alerts start.","how":"POST https://agentnexus.app/api/public/watch with {\"slug\":\"restful-api-dev\"} and your x-api-key (the key's email gets the alerts), or add \"email\" / \"webhook_url\". Email follows must be confirmed from the inbox before alerts start."}}