# OSCAR EMR

**Canonical:** https://apis.io/providers/oscar-emr/  
**Website:** https://oscar-emr.com/  
**APIs profiled:** 1

OSCAR EMR is an open-source electronic medical record (EMR) system created by Dr. David Chan and McMaster University's Department of Family Medicine, and one of Canada's most widely deployed primary-care EMRs. The core software is distributed under the GPL v2+ license (mirrored on GitHub as scoophealth/oscar and on Bitbucket), while the commercially supported OSCAR Pro distribution is delivered by the WELL EMR Group (a WELL Health company) to more than 2,000 clinics and 10,000 providers across Canada. OSCAR exposes a documented REST web-services API under the /ws/services path (scheduling, demographics, billing, prescriptions, documents, labs, ticklers, eForms and providers), secured with 3-legged OAuth 1.0a via /ws/oauth. Clinical data flows historically use HL7 v2 messaging, and OSCAR ships an internal HL7 FHIR integration used for Ontario public-health and immunization reporting (BORN, DHIR). Third-party integrations for OSCAR Pro are partner-gated through the apps.health marketplace. As self-hosted software there is no single public API host or hosted FHIR CapabilityStatement; the API surface is documented on the OSCAR EMR developer wiki and realized per clinic deployment.

## Kin Score — 27.9 / 100 (thin)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (+4.6 from 23.3).

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 54.8 |
| Commercial Clarity | 23.7 |
| Access Clarity | 23.7 |

Regulatory layer — **Health**: 38.8 (matched via tags).

## Agent readiness — 8.5 (agent-aware)

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

## APIs (1)

- **OSCAR REST Web Services API** — OSCAR's REST web-services layer, served under the /ws/services base path of a deployed OSCAR instance, covering most of the clinical record - scheduling/appointments, demographi...

## Security (2)

- **Oscar Emr Authentication** — oauth1a/oauth2 · 2 schemes
- **Oscar Emr Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Healthcare, Canada, EHR, EMR, Primary Care, Open Source, FHIR, HL7, Interoperability, SMART on FHIR, OAuth

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