Epic Systems

Epic FHIR Bulk Data Access API

Epic's implementation of the HL7 FHIR Bulk Data Access (Flat FHIR) specification, providing backend system-level population export via the $export operation, authorized with OAuth 2.0 client-credentials (asymmetric client authentication). Documented on Epic on FHIR; production access is client-registration and health-system gated.

GitHub

Documentation

📖
Documentation
https://fhir.epic.com/Documentation?docId=bulkdataaccesstutorial
📖
APIReference
https://fhir.epic.com/Specifications

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/epic-fhir-bulk-data-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 email required.

GitHub Google LinkedIn

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

API entry from apis.yml

apis.yml Raw ↑ 
aid: epic-systems:epic-fhir-bulk-data-api
name: Epic FHIR Bulk Data Access API
description: Epic's implementation of the HL7 FHIR Bulk Data Access (Flat FHIR) specification, providing
  backend system-level population export via the $export operation, authorized with OAuth 2.0 client-credentials
  (asymmetric client authentication). Documented on Epic on FHIR; production access is client-registration
  and health-system gated.
humanURL: https://fhir.epic.com/Documentation?docId=bulkdataaccesstutorial
baseURL: https://fhir.epic.com/interconnect-fhir-oauth/api/FHIR/R4
tags:
- FHIR
- Bulk Data
- BackendServices
tags_raw:
- FHIR
- Bulk Data
- Backend Services
properties:
- type: Documentation
  url: https://fhir.epic.com/Documentation?docId=bulkdataaccesstutorial
- type: APIReference
  url: https://fhir.epic.com/Specifications