Crossref API

90-day uptime

OperationalDegradedOutageNo data

Past incidents

Oct 11, 2026

No incidents reported.

Oct 10, 2026

No incidents reported.

Oct 9, 2026

No incidents reported.

Oct 8, 2026

No incidents reported.

Oct 7, 2026

No incidents reported.

Oct 6, 2026

No incidents reported.

Oct 5, 2026

No incidents reported.

Oct 4, 2026

No incidents reported.

Oct 3, 2026

No incidents reported.

Oct 2, 2026

No incidents reported.

Oct 1, 2026

No incidents reported.

Sep 30, 2026

No incidents reported.

Sep 29, 2026

No incidents reported.

Sep 28, 2026

No incidents reported.

Recent changes

• 2026-10-11Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-10Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-09Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-08Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-07Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-06Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-05Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-04Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-03Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-02Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-10-01Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-30Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-29Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-28Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-27Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-26Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-25Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-24Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-23Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number
• 2026-09-22Potentially breaking change3 fields changed: message.items[].alternative-id, message.items[].archive, message.items[].edition-number

Integrate

The live status, 90-day uptime figure and change history on this page are also machine-readable: embed the badge, poll the JSON, or subscribe to the feed. No key needed.

Status badge:

Markdown embed: [![Crossref API status](https://guardiandev.ai/apis/crossref-api/badge.svg)](https://guardiandev.ai/apis/crossref-api)

Machine-readable: JSON (versioned v1, CORS-enabled) · Atom feed of drift & outage events.