Firely
FHIR-native data platform built on .NET Core for processing health data and enhancing interoperability, with the widely-used open-source Firely .NET SDK.
Our Verdict
The obvious FHIR choice for .NET shops, less compelling if your stack is Java or Node.
Pros
- Authoritative .NET FHIR tooling
- Popular open-source SDK
- Strong interoperability focus
Cons
- Best in .NET, less ideal elsewhere
- Commercial server priced for enterprise
- Smaller community than HAPI
Best for: Healthcare teams building interoperability on .NET Core
Not for: Non-.NET shops who already use HAPI FHIR or Aidbox
When to Use Firely
Good fit if you need
- FHIR-compliant .NET backend for digital health applications
- Processing and validating FHIR resources in C# environments
- Interoperability integration using Firely's popular .NET SDK
- Building compliant health data pipelines on .NET Core stack
- FHIR STU3/R4/R5 support for European healthcare systems
Lock-in Assessment
Low 4/5
Lock-in Score 4/5
Pricing
Price wrong?Firely Pricing
- Pricing Model
- subscription
- Free Tier
- No
- Entry Price
- —
- Enterprise Available
- No
- Transparency Score
- —
Beta — estimates may differ from actual pricing
1,000
1001K10K100K1M
Estimated Monthly Cost
$25
Estimated Annual Cost
$300
Estimates are approximate and may not reflect current pricing. Always check the official pricing page.
Project Health
B
Health Score
918 361
Bus Factor
10
Last Commit
6 days
Release Freq
17d
Open Issues
68
Issue Response
N/A
License
NOASSERTION
Last checked: 2026-04-21
Community Discussion
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