# Patients Know Best

**Canonical:** https://apis.io/providers/patients-know-best/  
**Website:** https://patientsknowbest.com  
**APIs profiled:** 1

Patients Know Best (PKB) is a UK health-technology company operating what it describes as the world's largest personal health record, with more than seven million registered patients across the NHS and other health systems. The platform lets patients hold, view and share their medical records, messages, test results, care plans and questionnaires with clinicians and carers across web, mobile and the NHS App. For integrators, PKB publishes a HL7 FHIR STU3 (3.0.2) API — the "Facade" FHIR server at my.patientsknowbest.com/fhir — that conforms to the NHS CareConnect profiles and exposes patient demographics, documents, observations, appointments, consent, questionnaires and read receipts, secured with OAuth 2.0 client-credentials. PKB was surfaced as a Seedcamp portfolio company and enriched into the API Evangelist network.

## Kin Score — 45.4 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 45.4).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 36.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 47.4 |
| Developer Ergonomics | 49.4 |
| Commercial Clarity | 31.6 |
| Access Clarity | 31.6 |

Regulatory layer — **Health**: 40.0 (matched via tags).

## Agent readiness — 31.0 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | yes |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **PKB Facade FHIR API** — HL7 FHIR STU3 (3.0.2) "Facade" server exposing Patients Know Best personal health record data — Patient, Appointment, Communication, Consent, DiagnosticReport, DocumentReference...

## MCP servers (1)

- **Patients Know Best MCP Server**

## Security (3)

- **Patients Know Best Authentication** — oauth2 · 1 scheme
- **Patients Know Best Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Patients Know Best Vulnerability Disclosure** — security.txt · contact published

## Tags

Company, Health, Healthcare, Electronic Health Records, Personal Health Record, FHIR, Interoperability, NHS, Patient Data, Medical Records

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/patients-know-best/). Scores are computed from the provider's own public artifacts under a published rubric.