Firely

aid: firely-server
name: Firely
description: Firely is an Amsterdam-based health IT company and one of the original co-developers of the HL7 FHIR (Fast Healthcare
  Interoperability Resources) specification. Co-founded by Ewout Kramer and Martijn Harthoorn (both long-time HL7 FHIR core
  team members), Firely builds the canonical FHIR toolchain used by payers, providers, health authorities, and digital health
  vendors worldwide. The Firely platform is anchored by Firely Server (formerly Vonk) — a certified production-grade FHIR
  server with native support for MongoDB and SQL Server, deployable on Windows, Linux, macOS, Docker, and Kubernetes across
  on-premise, Azure, AWS, and Google Cloud. Firely Server is G10, ONC, and ISiK certified and supports SMART on FHIR, Bulk
  Data, CDS Hooks, Subscriptions, Terminology Services, and FHIR Mapping. The product family also includes Simplifier.net
  (the global FHIR profile registry and package server hosting ~9,000 projects, 40,000+ profiles, and 1,600+ implementation
  guides), Forge (FHIR profile editor), Firely Terminal (command-line FHIR tool with FQL/FSH/FHIRPath support), the open-source
  Firely .NET SDK (the de-facto reference C# FHIR library), the firely-cql-sdk for Clinical Quality Language, the Firely Validator
  API, FHIR Facade, Firely Server Ingest, and Firely Auth. Customers include UCSF, Humana, Roche, NHS, Opala, and the World
  Health Organization. Firely does not operate a hosted multi-tenant FHIR-as-a-service offering with a public REST endpoint;
  customers run Firely Server in their own environments. The public developer surface is therefore the Firely software products
  (Firely Server, .NET SDK, Terminal), the Simplifier.net package and registry APIs, and the open HL7 FHIR REST API contract
  that every Firely Server instance implements.
tags:
- FHIR
- HL7
- Healthcare
- Health IT
- Interoperability
- Clinical Data
- FHIR Server
- Vonk
- Simplifier
- Forge
- Terminology
- SMART on FHIR
- Bulk Data
- CDS Hooks
- Implementation Guides
- .NET SDK
- CQL
- Profile Registry
kind: contract
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/firely-server.png
url: https://raw.githubusercontent.com/api-evangelist/firely-server/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.23'
apis:
- aid: firely-server:firely-server-fhir-rest-api
  name: Firely Server FHIR REST API
  description: Every Firely Server (formerly Vonk) instance exposes the standard HL7 FHIR REST API contract — type-level and
    instance-level CRUD, search, history, batch/transaction, capability statement (/metadata), conditional operations, and
    conformance-driven validation — plus pluggable modules for Terminology Services, Bulk Data Access ($export), SMART on
    FHIR, CDS Hooks, Subscriptions/PubSub, FHIR Mapping Language, and custom search parameters. Firely Server supports FHIR
    R4, R4B, R5, and STU3 across MongoDB and SQL Server backends and is G10, ONC, and ISiK certified. The API contract is
    the HL7 FHIR specification itself; there is no public hosted multi-tenant base URL — customers self-host Firely Server
    on Windows, Linux, macOS, Docker, or Kubernetes.
  humanURL: https://docs.fire.ly/projects/Firely-Server/
  tags:
  - FHIR
  - REST
  - Healthcare
  - CRUD
  - Search
  - Terminology
  - Bulk Data
  - SMART on FHIR
  - CDS Hooks
  - Subscription
  tags_raw:
  - FHIR
  - REST
  - Healthcare
  - CRUD
  - Search
  - Terminology
  - Bulk Data
  - SMART on FHIR
  - CDS Hooks
  - Subscriptions
  properties:
  - type: Documentation
    url: https://docs.fire.ly/projects/Firely-Server/
    name: Firely Server Documentation
  - type: Standards
    url: https://hl7.org/fhir/http.html
    name: HL7 FHIR RESTful API specification
  - type: Standards
    url: https://hl7.org/fhir/
    name: HL7 FHIR Specification
  - type: Documentation
    url: https://hl7.org/fhir/uv/bulkdata/
    name: FHIR Bulk Data Access IG
  - type: Documentation
    url: https://hl7.org/fhir/smart-app-launch/
    name: SMART App Launch
  - type: Sample
    url: https://github.com/FirelyTeam/firely-pubsub-sample
    name: Firely Server PubSub sample
  - type: Sample
    url: https://github.com/FirelyTeam/Vonk.Facade.Starter
    name: Vonk Facade starter project
  - type: Plugin
    url: https://github.com/FirelyTeam/Vonk.Plugin.DocumentOperation
    name: Vonk $document operation plugin
  - type: Plugin
    url: https://github.com/FirelyTeam/Vonk.Plugin.ExampleOperation
    name: Vonk plugin template
- aid: firely-server:firely-server-catalog-api
  name: Firely Catalog API
  description: The Catalog API from Firely — 1 operation(s) for catalog.
  humanURL: https://docs.fire.ly/projects/Simplifier/features/api.html
  baseURL: https://packages.simplifier.net/
  tags:
  - Catalog
  properties:
  - type: OpenAPI
    url: openapi/firely-server-catalog-api-openapi.yml
  - type: Documentation
    url: https://docs.fire.ly/projects/Simplifier/features/api.html
  - type: Documentation
    url: https://app.swaggerhub.com/apis/firely/Simplifier.net_FHIR_Package_API/1.0.1
  - type: Registry
    url: https://registry.fhir.org/
- aid: firely-server:firely-server-simplifier-net-fhir-package-api-api
  name: Firely Simplifier.net FHIR Package API API
  description: The Simplifier.net FHIR Package API API from Firely — 2 operation(s) for simplifier.net fhir package api.
  humanURL: https://docs.fire.ly/projects/Simplifier/features/api.html
  baseURL: https://packages.simplifier.net/
  tags:
  - Simplifier.net FHIR Package API
  properties:
  - type: OpenAPI
    url: openapi/firely-server-simplifier-net-fhir-package-api-api-openapi.yml
  - type: Documentation
    url: https://docs.fire.ly/projects/Simplifier/features/api.html
  - type: Documentation
    url: https://app.swaggerhub.com/apis/firely/Simplifier.net_FHIR_Package_API/1.0.1
  - type: Registry
    url: https://registry.fhir.org/
common:
- type: AgenticAccess
  url: agentic-access/firely-server-agentic-access.yml
- type: DomainSecurity
  url: security/firely-server-domain-security.yml
- type: Website
  url: https://fire.ly
- type: Portal
  url: https://docs.fire.ly
- type: Documentation
  url: https://docs.fire.ly/projects/Firely-Server/
  name: Firely Server Documentation
- type: Documentation
  url: https://docs.fire.ly/projects/Firely-NET-SDK/
  name: Firely .NET SDK Documentation
- type: Documentation
  url: https://docs.fire.ly/projects/Simplifier/
  name: Simplifier Documentation
- type: Documentation
  url: https://docs.fire.ly/projects/Forge/
  name: Forge Documentation
- type: Documentation
  url: https://docs.fire.ly/projects/Firely-Terminal/
  name: Firely Terminal Documentation
- type: Product
  url: https://fire.ly/firely-server/
  name: Firely Server (Vonk)
- type: Product
  url: https://fire.ly/products/firely-net-sdk/
  name: Firely .NET SDK
- type: Product
  url: https://fire.ly/products/simplifier-net/
  name: Simplifier.net
- type: Product
  url: https://fire.ly/forge/
  name: Forge
- type: Product
  url: https://fire.ly/products/firely-terminal/
  name: Firely Terminal
- type: Product
  url: https://fire.ly/products/firely-auth/
  name: Firely Auth
- type: Product
  url: https://fire.ly/products/fhir-facade/
  name: FHIR Facade
- type: Product
  url: https://fire.ly/products/firely-server-ingest/
  name: Firely Server Ingest
- type: GitHubOrganization
  url: https://github.com/FirelyTeam
- type: SDKs
  url: https://github.com/FirelyTeam/firely-net-sdk
  name: Firely .NET SDK (C#)
- type: SDKs
  url: https://github.com/FirelyTeam/firely-cql-sdk
  name: Firely CQL SDK
- type: Tools
  url: https://github.com/FirelyTeam/spark
  name: Spark FHIR Server (open source)
- type: Tools
  url: https://github.com/FirelyTeam/firely-validator-api
  name: Firely Validator API
- type: Tools
  url: https://github.com/FirelyTeam/Firely.Fhir.Packages
  name: Firely FHIR Packages library
- type: Tools
  url: https://github.com/FirelyTeam/Fhir.Metrics
  name: Fhir.Metrics (UCUM)
- type: Tools
  url: https://github.com/FirelyTeam/firely-terminal-pipeline
  name: Firely Terminal GitHub Action
- type: HelmChart
  url: https://github.com/FirelyTeam/Helm.Charts
  name: Firely Helm Charts
- type: HelmChart
  url: https://github.com/FirelyTeam/Vonk.Helm.Charts
  name: Vonk Helm Charts
- type: CodeExamples
  url: https://github.com/FirelyTeam/firely-pubsub-sample
  name: Firely Server PubSub sample
- type: CodeExamples
  url: https://github.com/FirelyTeam/fhirstarters
  name: FHIR Starters example projects
- type: CodeExamples
  url: https://github.com/FirelyTeam/Vonk.Facade.Starter
  name: Vonk Facade Starter
- type: CodeExamples
  url: https://github.com/FirelyTeam/Vonk.Facade.Relational
  name: Vonk Facade Relational base
- type: CodeExamples
  url: https://github.com/FirelyTeam/Firely.Fhir.ValidationDemo
  name: Firely FHIR Validation Demo
- type: CodeExamples
  url: https://github.com/FirelyTeam/ACME-FSH-IG-Example
  name: ACME FSH IG Example
- type: CodeExamples
  url: https://github.com/FirelyTeam/ACME-FSH-Example
  name: ACME FSH Example
- type: Plugin
  url: https://github.com/FirelyTeam/Vonk.Plugin.DocumentOperation
  name: Vonk $document operation plugin
- type: Plugin
  url: https://github.com/FirelyTeam/Vonk.Plugin.ExampleOperation
  name: Vonk plugin template
- type: SDKs
  url: https://github.com/FirelyTeam/RonFHIR
  name: R on FHIR
- type: Tools
  url: https://github.com/FirelyTeam/Wind.Tunnel
  name: Wind.Tunnel FHIR server performance testing
- type: Tools
  url: https://github.com/FirelyTeam/firely-browser-extension
  name: Firely Browser Extension
- type: Tools
  url: https://github.com/FirelyTeam/fhir-codegen
  name: FHIR code generation tools
- type: Tools
  url: https://github.com/FirelyTeam/Hl7.Fhir.Validation.Legacy
  name: HL7 FHIR Validation (Legacy)
- type: Template
  url: https://github.com/FirelyTeam/fhir-specification-template-repository
  name: FHIR Specification Template Repository
- type: Documentation
  url: https://github.com/FirelyTeam/firely-docs
  name: Firely Documentation Source
- type: Skills
  url: https://github.com/FirelyTeam/skills
  name: Firely Agent Skills
- type: Registry
  url: https://simplifier.net
  name: Simplifier.net FHIR Registry
- type: Standards
  url: https://hl7.org/fhir/
  name: HL7 FHIR Specification (co-developed)
- type: Pricing
  url: https://fire.ly/firely-server/
  name: Firely Server pricing (contact sales)
- type: Signup
  url: https://simplifier.net/login
  name: Simplifier.net Sign Up
- type: Training
  url: https://fire.ly/training/
- type: Consulting
  url: https://fire.ly/services/
- type: Blog
  url: https://fire.ly/blog/
- type: LinkedIn
  url: https://www.linkedin.com/company/firely/
- type: Twitter
  url: https://twitter.com/FirelyTeam
- type: YouTube
  url: https://www.youtube.com/c/Firely
- type: Contact
  url: https://fire.ly/contact/
- type: Customers
  url: https://fire.ly/customers/
- type: Features
  data:
  - Firely Server (Vonk) — certified production FHIR server supporting FHIR R4, R4B, R5, and STU3
  - G10, ONC Health IT, and ISiK (German interoperability) certifications
  - MongoDB and SQL Server storage backends with flexible schemas
  - Deployment on Windows, Linux, macOS, Docker, and Kubernetes via official Helm Charts
  - Cloud-portable across Azure, AWS, Google Cloud, on-premise, and hybrid
  - Native FHIR validation against profiles, extensions, and value sets
  - SMART on FHIR authentication and authorization (latest version)
  - Bulk Data Access ($export) for population-scale data exchange
  - Terminology Service module ($validate-code, $expand, $lookup, $translate)
  - FHIR Mapping Language engine and CDS Hooks support
  - Subscriptions and PubSub for event-driven workflows
  - Custom search parameters, conformance resources, and request/response interception
  - Encryption at rest and in transit; event logging enabled by default
  - Firely .NET SDK — official open-source C# FHIR library (de-facto reference SDK)
  - Firely CQL SDK — Clinical Quality Language execution engine for .NET
  - Firely Terminal — CLI for FHIR validation, FQL, FSH compilation, FHIRPath, package management
  - Simplifier.net — global FHIR registry hosting 9,000+ projects and 40,000+ profiles
  - Forge — desktop FHIR profile editor integrated with Simplifier
  - Firely Validator API — standalone FHIR resource validation service
  - FHIR Facade — adapter for exposing non-FHIR backends through a FHIR API
  - Firely Server Ingest — high-volume FHIR data ingestion pipeline
  - Firely Auth — SMART-on-FHIR-compatible authentication component
  - Co-developers of HL7 FHIR (founders Ewout Kramer and Martijn Harthoorn on FHIR core team)
  - Customers include UCSF, Humana, Roche, NHS, WHO, and Opala
  - FHIR consulting, training (profiling, SDK, quality measures), and implementation services
  sources:
  - https://fire.ly
  - https://fire.ly/firely-server/
  - https://docs.fire.ly
  - https://github.com/FirelyTeam
  - https://simplifier.net
  updated: '2026-05-25'
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com
  X: apievangelist
  url: https://apievangelist.com