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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


Booking and Referral Standard

A standard for healthcare IT systems that enables booking and referral information to be sent between NHS service providers.

Appointment / Scheduling Referrals Access to Records Continuity of Care (ToC) Patient Communication A&E / Emergency Department Ambulance Services NHS 111 FHIR R4 REST API Standard


Clinical Decision Support API standards

API standards to support the triage and onward referral of patients who are interacting with Urgent and Emergency Care services, such as NHS 111.

Clinical Decision Support Hospital A&E / Emergency Department Patient GP / Primary Care Urgent And Emergency Care NHS 111 FHIR STU3 REST API Standard


NHS 111 API standard

API standard to share information between NHS 111 and other organisations, such as GPs and ambulance services, and query the Repeat Caller Service.

Hospital A&E / Emergency Department GP / Primary Care Urgent And Emergency Care Ambulance Services NHS 111 SOAP HL7 V3 Has adaptor API Standard