
Crossref Status
Real-time updates of Crossref issues and outages
Crossref status is Operational
Public REST API
Polite REST API
Crossmark dialog server
Public content negotiation
Polite content negotiation
Metadata search
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Active Incidents
No active incidents
Recently Resolved Incidents
We are receiving a very large number of requests from a user that is applying various strategies to get around our rate limits on our public REST API pool. This is impacting performance, including on the public and polite REST API pools, Crossmark, content negotiation, Crossref Metadata Search and reference matching. We are investigating solutions.
Crossref Outage Survival Guide
Crossref Components
Crossref APIs
Public REST API
We are receiving a very large number of requests from a user that is applying various strategies to get around our rate limits on our public REST API pool. This is impacting performance, including on the public and polite REST API pools, Crossmark, content negotiation, Crossref Metadata Search and reference matching. We are investigating solutions.
Polite REST API
We are receiving a very large number of requests from a user that is applying various strategies to get around our rate limits on our public REST API pool. This is impacting performance, including on the public and polite REST API pools, Crossmark, content negotiation, Crossref Metadata Search and reference matching. We are investigating solutions.
OAI-PMH
XML API
Event Data Query API
OpenURL
Crossmark dialog server
We are receiving a very large number of requests from a user that is applying various strategies to get around our rate limits on our public REST API pool. This is impacting performance, including on the public and polite REST API pools, Crossmark, content negotiation, Crossref Metadata Search and reference matching. We are investigating solutions.
Public content negotiation
We are receiving a very large number of requests from a user that is applying various strategies to get around our rate limits on our public REST API pool. This is impacting performance, including on the public and polite REST API pools, Crossmark, content negotiation, Crossref Metadata Search and reference matching. We are investigating solutions.
Polite content negotiation
We are receiving a very large number of requests from a user that is applying various strategies to get around our rate limits on our public REST API pool. This is impacting performance, including on the public and polite REST API pools, Crossmark, content negotiation, Crossref Metadata Search and reference matching. We are investigating solutions.
Crossref Metadata Plus
Plus REST API
Plus OAI-PMH
XML Snapshots
JSON Snapshots
Plus content negotiation
Key Manager
Crossref Content Registration
Admin tool
Test admin tool
Web deposit form
New Metadata Manager
Crossref Metadata files
Open Funder Registry
Retraction Watch
Annual public data files
Crossref Sites
Crossref website
Crossref support
Metadata search
We are receiving a very large number of requests from a user that is applying various strategies to get around our rate limits on our public REST API pool. This is impacting performance, including on the public and polite REST API pools, Crossmark, content negotiation, Crossref Metadata Search and reference matching. We are investigating solutions.