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Semble
Semble is a London-headquartered (7 Bell Yard, London, WC2A 2JR) cloud clinical and practice-management platform for United Kingdom private and independent healthcare providers, from solo clinicians to corporate and enterprise clinics. Its modular EHR unifies patient records, appointment scheduling and online booking, video consultations, e-prescribing, pathology/lab ordering, clinical documentation, invoicing and payments (Semble Pay) and patient communications. Semble exposes a single open, secure public GraphQL API at https://open.semble.io/graphql, available to Semble clinics at no extra cost, letting developers read and write patients, bookings, availability, consultations, clinical pathways, prescriptions, labs, invoices, tasks, forms, questionnaires and webhooks. Authentication is API-key / token based (an x-token header carrying a role-scoped token that expires after 12 hours) rather than SMART-on-FHIR; the API is GraphQL-native and does not publish an HL7 FHIR CapabilityStatement or a downloadable OpenAPI. Semble emphasises GDPR compliance and UK healthcare security standards, with data encrypted in transit and at rest.
Semble publishes 6 APIs on the APIs.io network. Tagged areas include Healthcare, United Kingdom, EHR, Practice Management, and GraphQL.
The Semble catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Semble’s developer surface includes authentication, changelog, documentation, API reference, getting-started guide, engineering blog, support, and 19 more developer resources.
6 APIs
Healthcare United Kingdom EHR Practice Management GraphQL Patient Records Scheduling e-Prescribing Interoperability Digital Health
On this page
Kin Score
APIs 6
Rate Limits 1
Event Specs 1
Security Posture 3
Resources 26
apis.yml
71 Operational Transparency
Composite quality — 49.4/100 · developing
Contract Quality
5.7 / 25
Developer Ergonomics
11.7 / 20
Commercial Clarity
10.0 / 20
Operational Transparency
9.2 / 13
Discoverability
10.0 / 10
Agent readiness — 35/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 15
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
7 / 7
Typed Event Surface
6 / 6
Agent Skills
5 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
Individual APIs this provider publishes, each with its own machine-readable definition.
Documented rate limits and quota policies.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Access & Security 6
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Source (apis.yml)
aid: semble
url: https://raw.githubusercontent.com/api-evangelist/semble/refs/heads/main/apis.yml
name: Semble
kind: company
description: Semble is a London-headquartered (7 Bell Yard, London, WC2A 2JR) cloud clinical and practice-management platform
for United Kingdom private and independent healthcare providers, from solo clinicians to corporate and enterprise clinics.
Its modular EHR unifies patient records, appointment scheduling and online booking, video consultations, e-prescribing,
pathology/lab ordering, clinical documentation, invoicing and payments (Semble Pay) and patient communications. Semble exposes
a single open, secure public GraphQL API at https://open.semble.io/graphql, available to Semble clinics at no extra cost,
letting developers read and write patients, bookings, availability, consultations, clinical pathways, prescriptions, labs,
invoices, tasks, forms, questionnaires and webhooks. Authentication is API-key / token based (an x-token header carrying
a role-scoped token that expires after 12 hours) rather than SMART-on-FHIR; the API is GraphQL-native and does not publish
an HL7 FHIR CapabilityStatement or a downloadable OpenAPI. Semble emphasises GDPR compliance and UK healthcare security
standards, with data encrypted in transit and at rest.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Healthcare
- United Kingdom
- EHR
- Practice Management
- GraphQL
- Patient Records
- Scheduling
- e-Prescribing
- Interoperability
- Digital Health
created: '2026-07-24'
modified: '2026-07-24'
specificationVersion: '0.19'
apis:
- aid: semble:semble-patients-api
name: Semble Patients API
description: GraphQL queries and mutations over the Semble patient record — patients, demographics, phone numbers, relationships,
labels, memberships, access groups, allergy records, free-text records, patient documents and patient communications.
Part of the single Semble public GraphQL API.
humanURL: https://docs.semble.io/docs/API/queries/patients/
baseURL: https://open.semble.io/graphql
tags:
- Patients
- Patient Records
- Healthcare
properties:
- type: Documentation
url: https://docs.semble.io/
- type: APIReference
url: https://docs.semble.io/docs/API/
- type: GraphQL
url: https://docs.semble.io/docs/API/queries/patients/
- type: Authentication
url: https://docs.semble.io/docs/authentication/
- aid: semble:semble-scheduling-api
name: Semble Scheduling & Bookings API
description: GraphQL surface for appointments and scheduling — bookings, bookings-by-id, availabilities, availability rules,
availability settings, availability slots, online booking configurations, out-of-office bookings and terminal/online booking
payments.
humanURL: https://docs.semble.io/docs/API/queries/bookings/
baseURL: https://open.semble.io/graphql
tags:
- Scheduling
- Bookings
- Appointments
properties:
- type: Documentation
url: https://docs.semble.io/
- type: APIReference
url: https://docs.semble.io/docs/API/
- type: GraphQL
url: https://docs.semble.io/docs/API/queries/bookings/
- type: Authentication
url: https://docs.semble.io/docs/authentication/
- aid: semble:semble-clinical-api
name: Semble Clinical API
description: GraphQL surface for clinical documentation and care pathways — consultations, clinical pathways, clinical reports,
episodes and episode types, letters, working diagnoses, diagnosis codes, forms and questionnaires.
humanURL: https://docs.semble.io/docs/API/queries/consultations/
baseURL: https://open.semble.io/graphql
tags:
- Clinical
- Consultations
- Documentation
properties:
- type: Documentation
url: https://docs.semble.io/
- type: APIReference
url: https://docs.semble.io/docs/API/
- type: GraphQL
url: https://docs.semble.io/docs/API/queries/consultations/
- type: Authentication
url: https://docs.semble.io/docs/authentication/
- aid: semble:semble-prescriptions-labs-api
name: Semble Prescriptions & Labs API
description: GraphQL surface for e-prescribing and diagnostics — prescriptions, repeat prescriptions and lab / pathology
orders and results, integrated with Semble's pharmacy and lab partner network.
humanURL: https://docs.semble.io/docs/API/queries/prescriptions/
baseURL: https://open.semble.io/graphql
tags:
- e-Prescribing
- Labs
- Pathology
properties:
- type: Documentation
url: https://docs.semble.io/
- type: APIReference
url: https://docs.semble.io/docs/API/
- type: GraphQL
url: https://docs.semble.io/docs/API/queries/prescriptions/
- type: Authentication
url: https://docs.semble.io/docs/authentication/
- aid: semble:semble-billing-payments-api
name: Semble Billing & Payments API
description: GraphQL surface for practice finances — invoices, invoice payments and line items, account statements, products,
price profiles, price rules and price adjustment rules, and Semble Pay payment terminals / readers.
humanURL: https://docs.semble.io/docs/API/queries/invoices/
baseURL: https://open.semble.io/graphql
tags:
- Billing
- Payments
- Invoicing
properties:
- type: Documentation
url: https://docs.semble.io/
- type: APIReference
url: https://docs.semble.io/docs/API/
- type: GraphQL
url: https://docs.semble.io/docs/API/queries/invoices/
- type: Authentication
url: https://docs.semble.io/docs/authentication/
- aid: semble:semble-practice-platform-api
name: Semble Practice & Platform API
description: GraphQL surface for practice administration and platform integration — practice details, users, contacts, tasks,
labels, patient documents, practice template documents, integration tokens and webhooks for event-driven integrations.
humanURL: https://docs.semble.io/docs/API/queries/webhooks/
baseURL: https://open.semble.io/graphql
tags:
- Practice Management
- Webhooks
- Platform
properties:
- type: Documentation
url: https://docs.semble.io/
- type: APIReference
url: https://docs.semble.io/docs/API/
- type: GraphQL
url: https://docs.semble.io/docs/API/queries/webhooks/
- type: Authentication
url: https://docs.semble.io/docs/authentication/
common:
- type: TrustCenter
url: security/semble-trust-center.yml
- type: DomainSecurity
url: security/semble-domain-security.yml
- type: Compliance
url: https://trust.semble.io/
- type: Conformance
url: conformance/semble-conformance.yml
- type: Authentication
url: authentication/semble-authentication.yml
- type: Conventions
url: conventions/semble-conventions.yml
- type: ErrorCatalog
url: errors/semble-error-codes.yml
- type: RateLimits
url: rate-limits/semble-rate-limits.yml
- type: Lifecycle
url: lifecycle/semble-lifecycle.yml
- type: Webhooks
url: asyncapi/semble-webhooks.yml
- type: AgentSkill
url: skills/_index.yml
- type: LLMsTxt
url: llms/semble-llms.txt
- type: ChangeLog
url: https://docs.semble.io/docs/release-notes/
- type: Website
url: https://www.semble.io/
- type: DeveloperPortal
url: https://docs.semble.io/
- type: Documentation
url: https://docs.semble.io/
- type: APIReference
url: https://docs.semble.io/docs/API/
- type: GettingStarted
url: https://help.semble.io/api-access
- type: Authentication
url: https://docs.semble.io/docs/authentication/
- type: StatusPage
url: https://status.semble.io/
- type: Security
url: https://trust.semble.io/
- type: Blog
url: https://www.semble.io/blog
- type: Support
url: https://help.semble.io/
- type: SignUp
url: https://www.semble.io/book-a-demo
- type: TermsOfService
url: https://www.semble.io/terms-of-service
- type: PrivacyPolicy
url: https://www.semble.io/privacy-policy
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com