API Acre — Crossref DOI metadata enrichment
https://apiacre.com/v1/research/crossref-doi-metadataOverview
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.
Protocol
x402 (POST)
Price
—
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
research
Provider
API Acre
Source
self-registered
Indexed
2026-08-29 19:24:38
Health
Status
healthy
Latency (p50)
136ms
Uptime (30d)
100.0%
Reliability Score
100/100
Last Checked
2026-10-18 20:52:57
Last Healthy
2026-10-18 20:52:57
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-18 20:52:57 | healthy | 402 | 738ms | |
| 2026-10-18 12:56:02 | healthy | 402 | 1141ms | |
| 2026-10-17 16:15:10 | healthy | 402 | 136ms | |
| 2026-10-17 13:43:24 | healthy | 402 | 122ms | |
| 2026-10-16 20:20:07 | healthy | 402 | 90ms | |
| 2026-10-16 06:28:34 | healthy | 402 | 794ms | |
| 2026-10-15 22:37:05 | healthy | 402 | 74ms |