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API catalogue

First time here? Check out Getting Started with NHS Digital APIs.

These are the APIs which are currently available, or in development, from NHS Digital. It includes API standards defined by us. If you're looking for other standards or reference materials, try our Developer A-Z

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Include retired APIs


Crisis Care Extract API

Send a CDA document containing Crisis Care Extract information supporting the sharing of care plans for urgent and emergency care.

Continuity of Care (ToC) Key Care Information Messaging Hospital A&E / Emergency Department GP / Primary Care Urgent And Emergency Care API Service


National Event Management Service - FHIR API

Publish and subscribe to patient-centric healthcare event messages with the National Events Management Service (NEMS).

Continuity of Care (ToC) Messaging Transport / Infrastructure FHIR STU3 MESH NEMS API Service Central Intermediary