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.

🌐 Visit website 📡 Source on GitHub

49.4/100 developing ▬ flat Agent 24/100 agent aware Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

6 APIs

Healthcare United Kingdom EHR Practice Management GraphQL Patient Records Scheduling e-Prescribing Interoperability Digital Health

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 49.4/100 · developing

Contract Quality 8.3 / 21

Developer Ergonomics 6.8 / 17

Access Clarity 8.5 / 17

Operational Transparency 7.9 / 11

Contract Governance 1.9 / 10

Discoverability 6.7 / 9

Regulatory Posture 4.2 / 15

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Health regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/semble: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Semble Patients API

GraphQL queries and mutations over the Semble patient record — patients, demographics, phone numbers, relationships, labels, memberships, access groups, allergy records, free-te...

Semble Scheduling & Bookings API

GraphQL surface for appointments and scheduling — bookings, bookings-by-id, availabilities, availability rules, availability settings, availability slots, online booking configu...

Semble Clinical API

GraphQL surface for clinical documentation and care pathways — consultations, clinical pathways, clinical reports, episodes and episode types, letters, working diagnoses, diagno...

Semble Prescriptions & Labs API

GraphQL surface for e-prescribing and diagnostics — prescriptions, repeat prescriptions and lab / pathology orders and results, integrated with Semble's pharmacy and lab partner...

Semble Billing & Payments API

GraphQL surface for practice finances — invoices, invoice payments and line items, account statements, products, price profiles, price rules and price adjustment rules, and Semb...

Semble Practice & Platform API

GraphQL surface for practice administration and platform integration — practice details, users, contacts, tasks, labels, patient documents, practice template documents, integrat...

Rate Limits 1

Documented rate limits and quota policies.

Semble Rate Limits

1 limits

RATE LIMITS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Semble Webhooks

ASYNCAPI

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Semble Authentication

apiKey · 1 scheme

SECURITY

Semble Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Semble Trust Center

ISO 27001, PCI DSS, GDPR

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

Conventions

ErrorCatalog

Lifecycle

Webhooks

Access & Security 6

Authentication, authorization, and security posture

TrustCenter

DomainSecurity

Compliance

Authentication

Authentication

Security

Operate 4

Status, limits, changes, and where to get help

RateLimits

ChangeLog

StatusPage

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
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: '0.23'
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
  - Booking
  - Appointments
  tags_raw:
  - 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
  - Webhook
  - Platform
  tags_raw:
  - 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

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