{"entry":{"slug":"openlibrary-api","name":"Open Library","category":"api","summary":"Book metadata by ISBN, work or author.","description":"Open bibliographic data from the Internet Archive: books, editions, authors, covers.","auth_mode":"none","endpoint":"https://openlibrary.org","docs_url":"https://openlibrary.org/developers/api","tags":["books","metadata","open-data"],"capabilities":["lookup_isbn","search_books","author_info"],"auth_params":[],"input_format":"path params","output_format":"json","rate_limit":"","pricing":"free","invocation_example":"curl -sL \"https://openlibrary.org/isbn/9780140328721.json\"","verified":false,"verified_at":null,"featured":false,"checks_total":59,"checks_ok":57,"avg_latency_ms":1113,"reports_count":0,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-11-02T00:17:04.822+00:00","health_latency_ms":1588,"probe_url":null},"watch":{"hint":"Follow \"openlibrary-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\":\"openlibrary-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."}}