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SDKs and API docs from one definition
Fern is SDK and API docs software offering a toolchain that generates type-safe SDKs and interactive API documentation from OpenAPI or Fern definitions. Founded in 2022 and based in New York, New York, USA, Fern helps developer-facing API teams work more efficiently and achieve better outcomes.
Fern is built for developer-facing API teams. It suits teams that want type-safe SDK generation without spreadsheets and disconnected tools.
Compared with alternatives like Stainless, Fern differentiates on type-safe SDK generation. Pricing is quote-based and scoped to your usage and team size.
Pricing Model
Quote-based
Starting Price
Contact vendor
Free Options
Free trial
Core Fern for growing teams. Contact for a quote.
Advanced Fern for larger organizations. Contact for a quote.
| Feature | Professional Popular | Enterprise |
|---|---|---|
| type-safe SDK generation | , | |
| interactive API docs | , | |
| Integrations | , | |
| Analytics and reporting | , | |
| Standard support | , | |
| Everything in Professional | , | |
| API reference with playground | , | |
| CI-driven publishing | , | |
| Advanced security and controls | , | |
| Dedicated support and onboarding | , |
Other
DevOps
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API Types
SDK Availability
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Developer Features
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Compliance Standards
SOC 2 Type II
EnterpriseISO 27001
EnterpriseGDPR Compliant
GlobalHIPAA
HealthcarePCI DSS
FinanceCCPA
PrivacyFedRAMP
GovernmentCSA STAR
CloudDeployment & Data
Data Residency Options
Verify with vendor for your specific region requirements.
Interactive developer hubs and API documentation
Generate SDKs and docs from OpenAPI
The API platform for building, testing, and collaborating on APIs.
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