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Fasten Health
Fasten Health
Fasten Health is a healthcare data interoperability company offering a unified medical record platform that gives patients and developers access to clinical data across the U.S. healthcare system. Fasten began as an open-source project — Fasten OnPrem, a self-hosted personal/family electronic medical record manager that ingests FHIR Bundles and is distributed under GPL-3.0 with 2.7k+ GitHub stars. The team then productized the connectivity layer as Fasten Connect, a commercial REST + FHIR API and Stitch client SDK suite that lets developers retrieve clinical records from 50,000+ healthcare systems and 60,000+ organizations including Epic, Cerner, MyChart, Kaiser Permanente, HCA, Ascension, Humana, and Medicare. Founded by engineers who lived through the fragmentation of health data firsthand and based in New York City, Fasten ships GPL/MIT/Apache 2.0 open source repos alongside the hosted Fasten Connect platform.
11 APIs
0 Features
Healthcare FHIR Personal Health Record Electronic Medical Record Health Data Interoperability TEFCA EHI Export Patient Consent Self-Hosted Open Source HL7 Healthcare Connectivity
Fasten Health publishes 1 API on the APIs.io network: Fasten Connect API. Tagged areas include Healthcare, FHIR, Personal Health Record, Electronic Medical Record, and Health Data Interoperability.
Fasten Health’s developer surface includes documentation, GitHub presence, engineering blog, changelog, signup flow, pricing, support, and 10 more developer resources.
Fasten OnPrem is an open-source, self-hosted, personal and family electronic medical record manager written in Go (47%) and TypeScript (35%). It runs as a Docker container behin...
Fasten Connect is the commercial REST + FHIR API for retrieving patient clinical records from 50,000+ U.S. healthcare systems. The API surface is documented in OpenAPI 1.0.11 at...
Fasten Connect emits HMAC-verified webhook events to notify integrators of asynchronous operations such as EHI export completion, connection lifecycle changes, and TEFCA workflo...
Stitch is Fasten Connect's client-side embeddable component that lets a patient pick their healthcare provider, authenticate, and grant data-sharing consent inside a host applic...
Identity proofing endpoints and guides cover Fasten-issued identity verification as well as a Bring Your Own Identity path for integrators that already meet NIST IAL2 / TEFCA IA...
Apache 2.0 licensed Go client library and generated FHIR resource models used by Fasten's services to parse, validate, and emit FHIR R4 payloads. Maintained as a standalone open...
MIT-licensed React component library for rendering FHIR resources, useful for building patient portals and clinical viewers on top of Fasten data.
Standalone FHIR-based developer tools derived from the main Fasten platform, including catalog browsing, display component previews, and other utilities for working with FHIR data.
Apache 2.0 licensed modern PDF library for Go with a layout engine, HTML-to-PDF conversion, form-fill support, digital signatures, and barcode rendering. Open-sourced by Fasten ...
MIT-licensed JavaScript starter project that demonstrates an end-to-end Fasten Connect integration — credential setup, Stitch embed, bulk EHI export request, and webhook-driven ...
GPL-3.0 licensed Python proof-of-concept for AI-powered health insights — exploratory work on conversational querying of a patient's longitudinal medical record using LLMs.
Sources
aid: fasten-health
name: Fasten Health
description: Fasten Health is a healthcare data interoperability company offering a unified medical record
platform that gives patients and developers access to clinical data across the U.S. healthcare system. Fasten
began as an open-source project — Fasten OnPrem, a self-hosted personal/family electronic medical record manager
that ingests FHIR Bundles and is distributed under GPL-3.0 with 2.7k+ GitHub stars. The team then productized
the connectivity layer as Fasten Connect, a commercial REST + FHIR API and Stitch client SDK suite that lets
developers retrieve clinical records from 50,000+ healthcare systems and 60,000+ organizations including Epic,
Cerner, MyChart, Kaiser Permanente, HCA, Ascension, Humana, and Medicare. Founded by engineers who lived through
the fragmentation of health data firsthand and based in New York City, Fasten ships GPL/MIT/Apache 2.0 open
source repos alongside the hosted Fasten Connect platform.
kind: contract
position: Producing
access: Open Source
image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
- Healthcare
- FHIR
- Personal Health Record
- Electronic Medical Record
- Health Data Interoperability
- TEFCA
- EHI Export
- Patient Consent
- Self-Hosted
- Open Source
- HL7
- Healthcare Connectivity
created: '2026-05-25'
modified: '2026-05-25'
url: https://raw.githubusercontent.com/api-evangelist/fasten-health/refs/heads/main/apis.yml
specificationVersion: '0.19'
x-type: opensource
x-tier: 1
apis:
- aid: fasten-health:fasten-onprem
name: Fasten OnPrem
description: Fasten OnPrem is an open-source, self-hosted, personal and family electronic medical record
manager written in Go (47%) and TypeScript (35%). It runs as a Docker container behind HTTPS/TLS, supports
multi-user family accounts with admin and viewer roles, and ingests medical data either through manual entry
or by importing FHIR Bundles. It ships condition-specific dashboards and diagnostic test tracking, with
planned vaccination-recommendation, conversational medical-history, and wearable-integration features.
Distributed under GPL-3.0 with 2.7k+ stars; the official container image is hosted at
ghcr.io/fastenhealth/fasten-onprem.
humanURL: https://github.com/fastenhealth/fasten-onprem
tags:
- Personal Health Record
- Electronic Medical Record
- Self-Hosted
- FHIR
- Family Health
- Open Source
properties:
- type: SourceCode
url: https://github.com/fastenhealth/fasten-onprem
- type: Documentation
url: https://github.com/fastenhealth/fasten-onprem#readme
- type: ContainerImage
url: https://github.com/fastenhealth/fasten-onprem/pkgs/container/fasten-onprem
name: GHCR ghcr.io/fastenhealth/fasten-onprem
- type: License
url: https://github.com/fastenhealth/fasten-onprem/blob/main/LICENSE.md
name: GPL-3.0
- type: Issues
url: https://github.com/fastenhealth/fasten-onprem/issues
- type: ChangeLog
url: https://github.com/fastenhealth/fasten-onprem/releases
- type: GettingStarted
url: https://github.com/fastenhealth/fasten-onprem#install-instructions
- aid: fasten-health:fasten-connect
name: Fasten Connect API
description: Fasten Connect is the commercial REST + FHIR API for retrieving patient clinical records from
50,000+ U.S. healthcare systems. The API surface is documented in OpenAPI 1.0.11 at
api.connect.fastenhealth.com/v1 and uses HTTP Basic authentication with public/private key pairs prefixed
public_test_/private_test_ or public_live_/private_live_. Capabilities include catalog discovery (search
brands, fetch organization metadata, brand logos, bulk catalog export), patient-to-provider connection
orchestration via the /bridge/connect and /bridge/reconnect endpoints, organization-connection status checks,
bulk EHI (Electronic Health Information) export requests with task polling and signed downloads, TEFCA
synthetic-patient revocation for testing, and a support-ticket endpoint.
humanURL: https://docs.connect.fastenhealth.com/api-reference/introduction
baseURL: https://api.connect.fastenhealth.com/v1
tags:
- FHIR
- Healthcare Connectivity
- EHI Export
- TEFCA
- REST
- Patient Records
properties:
- type: Documentation
url: https://docs.connect.fastenhealth.com/api-reference/introduction
- type: OpenAPI
url: https://docs.connect.fastenhealth.com/api-reference/openapi.yaml
- type: Authentication
url: https://docs.connect.fastenhealth.com/api-reference/authentication
- type: Quickstart
url: https://docs.connect.fastenhealth.com/quickstart
- type: SignUp
url: https://portal.connect.fastenhealth.com
name: Fasten Connect Developer Portal
- type: Sandbox
url: https://docs.connect.fastenhealth.com/guides/test-data
- type: TestCredentials
url: https://docs.connect.fastenhealth.com/guides/test-patient-credentials
- aid: fasten-health:fasten-connect-webhooks
name: Fasten Connect Webhooks
description: Fasten Connect emits HMAC-verified webhook events to notify integrators of asynchronous
operations such as EHI export completion, connection lifecycle changes, and TEFCA workflow updates.
Documentation covers event types, delivery semantics with retries, signature verification, and a webhook
debugging simulator for local development.
humanURL: https://docs.connect.fastenhealth.com/webhooks/introduction
tags:
- Webhooks
- Event-Driven
- Async
properties:
- type: Documentation
url: https://docs.connect.fastenhealth.com/webhooks/introduction
- type: Events
url: https://docs.connect.fastenhealth.com/webhooks/events
- type: Delivery
url: https://docs.connect.fastenhealth.com/webhooks/delivery
- type: Verification
url: https://docs.connect.fastenhealth.com/webhooks/verification
- type: Tooling
url: https://docs.connect.fastenhealth.com/guides/webhook-debugging-simulator
name: Webhook Debugging Simulator
- aid: fasten-health:fasten-stitch
name: Fasten Stitch Client SDKs
description: Stitch is Fasten Connect's client-side embeddable component that lets a patient pick their
healthcare provider, authenticate, and grant data-sharing consent inside a host application. Stitch is shipped
as three SDKs — a framework-neutral Web Component, a React SDK, and a React Native SDK — each with quickstart
and reference docs. Client events stream connection lifecycle, error, and consent signals back to the host
app. The Stitch element source repos (fasten-stitch-element-react, fasten-stitch-element-react-native) are
MIT-licensed on GitHub with companion playground apps.
humanURL: https://docs.connect.fastenhealth.com/stitch/v4/introduction
tags:
- SDK
- Embeddable Component
- Patient Consent
- React
- React Native
- Web Component
properties:
- type: Documentation
url: https://docs.connect.fastenhealth.com/stitch/v4/introduction
- type: SDK
url: https://docs.connect.fastenhealth.com/stitch/v4/sdks/web-component/quickstart
name: Stitch Web Component SDK
- type: SDK
url: https://docs.connect.fastenhealth.com/stitch/v4/sdks/react/quickstart
name: Stitch React SDK
- type: SDK
url: https://docs.connect.fastenhealth.com/stitch/v4/sdks/react-native/quickstart
name: Stitch React Native SDK
- type: SourceCode
url: https://github.com/fastenhealth/fasten-stitch-element-react
name: fasten-stitch-element-react
- type: SourceCode
url: https://github.com/fastenhealth/fasten-stitch-element-react-native
name: fasten-stitch-element-react-native
- type: Examples
url: https://github.com/fastenhealth/react-web-playground
name: React Web Playground
- type: Examples
url: https://github.com/fastenhealth/react-native-playground
name: React Native Playground
- type: Events
url: https://docs.connect.fastenhealth.com/stitch/v4/client-events
- aid: fasten-health:fasten-identity-proofing
name: Fasten Identity Proofing & TEFCA IAS
description: Identity proofing endpoints and guides cover Fasten-issued identity verification as well as a
Bring Your Own Identity path for integrators that already meet NIST IAL2 / TEFCA IAS requirements.
Documentation includes a TEFCA Individual Access Services developer guide and patient consent + data
collection guidance for HIPAA-aligned implementations.
humanURL: https://docs.connect.fastenhealth.com/identity-proofing/introduction
tags:
- Identity Proofing
- TEFCA
- IAL2
- Patient Consent
- HIPAA
properties:
- type: Documentation
url: https://docs.connect.fastenhealth.com/identity-proofing/introduction
- type: Documentation
url: https://docs.connect.fastenhealth.com/identity-proofing/bring-your-own-identity
name: Bring Your Own Identity
- type: Documentation
url: https://docs.connect.fastenhealth.com/guides/patient-consent-data-collection
name: Patient Consent & Data Collection
- type: Documentation
url: https://docs.connect.fastenhealth.com/guides/tefca-ias
name: TEFCA IAS Developer Guide
- aid: fasten-health:gofhir-models
name: gofhir-models
description: Apache 2.0 licensed Go client library and generated FHIR resource models used by Fasten's
services to parse, validate, and emit FHIR R4 payloads. Maintained as a standalone open source dependency.
humanURL: https://github.com/fastenhealth/gofhir-models
tags:
- FHIR
- Go
- SDK
- Library
properties:
- type: SourceCode
url: https://github.com/fastenhealth/gofhir-models
- type: License
url: https://github.com/fastenhealth/gofhir-models/blob/main/LICENSE
name: Apache 2.0
- aid: fasten-health:fhir-react
name: fhir-react
description: MIT-licensed React component library for rendering FHIR resources, useful for building patient
portals and clinical viewers on top of Fasten data.
humanURL: https://github.com/fastenhealth/fhir-react
tags:
- FHIR
- React
- UI Components
- SDK
properties:
- type: SourceCode
url: https://github.com/fastenhealth/fhir-react
- type: License
url: https://github.com/fastenhealth/fhir-react/blob/main/LICENSE
name: MIT
- aid: fasten-health:fasten-toolbox
name: Fasten Toolbox
description: Standalone FHIR-based developer tools derived from the main Fasten platform, including catalog
browsing, display component previews, and other utilities for working with FHIR data.
humanURL: https://github.com/fastenhealth/fasten-toolbox
tags:
- FHIR
- Developer Tools
- Utilities
properties:
- type: SourceCode
url: https://github.com/fastenhealth/fasten-toolbox
- aid: fasten-health:folio
name: Folio
description: Apache 2.0 licensed modern PDF library for Go with a layout engine, HTML-to-PDF conversion,
form-fill support, digital signatures, and barcode rendering. Open-sourced by Fasten to power patient-facing
medical record exports.
humanURL: https://github.com/fastenhealth/folio
tags:
- PDF
- Go
- Library
- Document Generation
properties:
- type: SourceCode
url: https://github.com/fastenhealth/folio
- type: License
url: https://github.com/fastenhealth/folio/blob/main/LICENSE
name: Apache 2.0
- aid: fasten-health:fasten-connect-quickstart
name: Fasten Connect Quickstart Sample
description: MIT-licensed JavaScript starter project that demonstrates an end-to-end Fasten Connect
integration — credential setup, Stitch embed, bulk EHI export request, and webhook-driven download.
humanURL: https://github.com/fastenhealth/fasten-connect-quickstart
tags:
- Sample
- Quickstart
- JavaScript
- Integration
properties:
- type: SourceCode
url: https://github.com/fastenhealth/fasten-connect-quickstart
- type: License
url: https://github.com/fastenhealth/fasten-connect-quickstart/blob/main/LICENSE
name: MIT
- aid: fasten-health:fasten-answers-ai
name: Fasten Answers AI
description: GPL-3.0 licensed Python proof-of-concept for AI-powered health insights — exploratory work on
conversational querying of a patient's longitudinal medical record using LLMs.
humanURL: https://github.com/fastenhealth/fasten-answers-ai
tags:
- Artificial Intelligence
- LLM
- Healthcare
- Proof of Concept
properties:
- type: SourceCode
url: https://github.com/fastenhealth/fasten-answers-ai
- type: License
url: https://github.com/fastenhealth/fasten-answers-ai/blob/main/LICENSE
name: GPL-3.0
common:
- type: Website
url: https://www.fastenhealth.com
- type: Documentation
url: https://docs.connect.fastenhealth.com
- type: GitHub
url: https://github.com/fastenhealth/fasten-onprem
name: fasten-onprem (flagship repo)
- type: GitHubOrg
url: https://github.com/fastenhealth
- type: Blog
url: https://blog.fastenhealth.com
- type: ChangeLog
url: https://docs.connect.fastenhealth.com/changelog
- type: SignUp
url: https://portal.connect.fastenhealth.com
name: Fasten Connect Developer Portal
- type: Pricing
url: https://www.fastenhealth.com
name: Contact Sales (Book a Demo)
- type: Support
url: https://docs.connect.fastenhealth.com/support
- type: FAQ
url: https://docs.connect.fastenhealth.com/faqs
- type: License
url: https://github.com/fastenhealth/fasten-onprem/blob/main/LICENSE.md
name: GPL-3.0 (Fasten OnPrem)
- type: ContainerImage
url: https://github.com/fastenhealth/fasten-onprem/pkgs/container/fasten-onprem
name: GHCR ghcr.io/fastenhealth/fasten-onprem
- type: Sandbox
url: https://docs.connect.fastenhealth.com/guides/test-data
- type: Examples
url: https://github.com/fastenhealth/fasten-connect-quickstart
- type: Demo
url: https://github.com/fastenhealth/fooclinic
name: fooclinic Demo Medical Clinic
- type: Status
url: https://docs.connect.fastenhealth.com/support
- type: Careers
url: https://wellfound.com/company/fasten-health
maintainers:
- FN: Kin Lane
email: [email protected]