{"slug":"api-acre-50d219f1","name":"API Acre","summary":"Resolve one DOI into normalized open Crossref bibliographic, author, container, citation-count, license, identifier, and correction or retraction-link metadata without abstracts or full text.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:11.150885Z","sources":[{"source":"x402_bazaar","external_id":"https://apiacre.com/v1/research/crossref-doi-metadata","owner_address":"0xa0bfa4f07281c9b248dc3aed2217836bca24869b","seen_at":"2026-10-26T05:59:33.410349Z","removed_at":null}],"endpoints":[{"url":"https://apiacre.com/v1/research/crossref-doi-metadata","host":"apiacre.com","protocol":"x402","state":"live","last_probe_at":"2026-10-26T00:08:19.935627Z","last_ok_at":"2026-10-26T00:08:19.935627Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"apiacre-com-0c184757","name":"apiacre.com"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":2,"paid_calls_30d":2,"last_paid_at":"2026-10-23T23:56:30.309Z","reported_at":"2026-10-26T05:59:33.410349Z"},"notice":"Not affiliated with addrbook — claim or request removal."}