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, demographics, billing, prescriptions, documents, labs, ticklers, eForms and providers. Applications register as REST clients through the OSCAR Administration interface and authenticate provider users with 3-legged OAuth 1.0a (/ws/oauth/initiate, /ws/oauth/authorize, /ws/oauth/token). As self-hosted software the host and web context are deployment-specific (documented example: http://localhost:8080/oscar_15/ws/services), so no single public base URL exists. The API is documented on the OSCAR EMR developer wiki; runtime documentation is generated with RAML (RAML for JAX-RS) rather than OpenAPI/Swagger, and there is no downloadable static spec published.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/oscar-rest-web-services-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
aid: oscar-emr:oscar-rest-web-services-api
name: OSCAR REST Web Services API
description: '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, demographics, billing,
  prescriptions, documents, labs, ticklers, eForms and providers. Applications register as REST clients
  through the OSCAR Administration interface and authenticate provider users with 3-legged OAuth 1.0a
  (/ws/oauth/initiate, /ws/oauth/authorize, /ws/oauth/token). As self-hosted software the host and web
  context are deployment-specific (documented example: http://localhost:8080/oscar_15/ws/services), so
  no single public base URL exists. The API is documented on the OSCAR EMR developer wiki; runtime documentation
  is generated with RAML (RAML for JAX-RS) rather than OpenAPI/Swagger, and there is no downloadable static
  spec published.'
humanURL: https://oscaremr.atlassian.net/wiki/spaces/OS/pages/79855638/Connecting+to+OSCAR's+REST+API
tags:
- EHR
- EMR
- REST
- Primary Care
- Canada
properties:
- type: Documentation
  url: https://oscaremr.atlassian.net/wiki/spaces/OS/overview
- type: APIReference
  url: https://oscaremr.atlassian.net/wiki/spaces/OS/pages/85396074/Documenting+the+REST+API
- type: GettingStarted
  url: https://oscaremr.atlassian.net/wiki/spaces/OS/pages/79855638/Connecting+to+OSCAR's+REST+API
- type: Authentication
  url: https://oscaremr.atlassian.net/wiki/spaces/OS/pages/79855638/Connecting+to+OSCAR's+REST+API