{"entry":{"slug":"wayback-availability-api","name":"Wayback Availability","category":"api","summary":"Find the closest archived snapshot of a URL.","description":"Internet Archive availability API: is a URL archived, and when.","auth_mode":"none","endpoint":"https://archive.org/wayback/available","docs_url":"https://archive.org/help/wayback_api.php","tags":["archive","web","open-data"],"capabilities":["closest_snapshot"],"auth_params":[],"input_format":"query params","output_format":"json","rate_limit":"","pricing":"free","invocation_example":"curl -s \"https://archive.org/wayback/available?url=example.com\"","verified":false,"verified_at":null,"featured":false,"checks_total":58,"checks_ok":58,"avg_latency_ms":558,"reports_count":0,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-11-02T00:18:42.14+00:00","health_latency_ms":447,"probe_url":null},"watch":{"hint":"Follow \"wayback-availability-api\": 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\":\"wayback-availability-api\"} 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."}}