API Acre
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.
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 133 ms
- Price
- $0.003 per call
- Paying buyers, last 30 days
- 1 (directory's own records)
- Paid calls, last 30 days
- 1
- Category
- Research, reports and analytics
- Address
- https://apiacre.com/v1/research/crossref-doi-metadata
Accuracy: paid answers checked against an independent record
Not yet in our paid checks. A seller we have not checked has neither passed nor failed.
For agents
This page as JSON: /sellers/5f3624f180e1.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).