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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

7 results

Include retired APIs


Child Screening API

The Child Screening Domain Message Specification supports the Child Screening Report - A CDA document containing child screening information. 

Key Care Information Messaging Tests and Diagnostics

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


Health Protection Electronic Notification API

Inform Public Health England (PHE) that a notifiable disease has been diagnosed in a patient, using our Health Protection Electronic Notification (HPEN) API. Includes PHE's response message.

Messaging Information Governance Tests and Diagnostics Community health Hospital A&E / Emergency Department GP / Primary Care Urgent And Emergency Care Ambulance Services NHS 111 OOH GP API Service


Interoperability Toolkit Messaging HL7 V2 API standards

API standards for a set of messaging components using HL7 V2.

Messaging API Standard


Message Exchange for Social Care and Health (MESH) API

Transfer messages and large files securely across health and social care organisations using the Message Exchange for Social Care and Health (MESH) API.

Messaging Transport / Infrastructure MESH API Service Central Intermediary


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

Non-Coded CDA Document API

Send a Clinical Document Architecture (CDA) message when no other specific document profile exists using a Non-Coded CDA Document profile.

Messaging API Service