{"service":"Public Domain Check","description":"Is a book, film, song or artwork in the US public domain, and when does it enter it? Paid per call with x402 (USDC on Base); no account or API key.","docs":{"llms":"/copyright/llms.txt","openapi":"/copyright/openapi.json","x402":"/copyright/x402.json","mcp_card":"/copyright/.well-known/mcp/server-card.json"},"mcp":{"url":"https://public-domain-check-production.up.railway.app/copyright/mcp","transport":"streamable-http"},"products":[{"id":"public-domain","name":"Public Domain Check","description":"Is a book, film, song or artwork in the US public domain, and when does it enter it?","front_door":"https://public-domain-check-production.up.railway.app/copyright","paid":[{"endpoint":"GET /v1/pd-status","price":"$0.01 brief (default), $0.02 full","summary":"Is this work in the US public domain, and since or until when?"},{"endpoint":"POST /v1/pd-status/batch","price":"$0.0075 per work brief, $0.015 full","summary":"Clear up to 50 works in one call"},{"endpoint":"GET /v1/renewals/search","price":"$0.01","summary":"Who renewed a 1929–1963 work's copyright, and when"}],"free":[{"endpoint":"GET /v1/pd-rules","summary":"Which US copyright rule applies to a publication year, and whether a records lookup is needed"},{"endpoint":"GET /v1/public-domain-day","summary":"What enters the US public domain on January 1 of a year"},{"endpoint":"GET /v1/pd-accuracy","summary":"How often our answers agree with HathiTrust's human copyright reviewers"},{"endpoint":"GET /v1/pd-status/sample","summary":"Exact shape of a paid answer (brief by default, format=full for full)"}],"mcp_tools":["check_public_domain","check_public_domain_full","search_copyright_renewals","copyright_rules_for_year","public_domain_day"]}],"network":"eip155:8453"}