Fern Fern
Fern is an integrated developer experience platform that transforms API definitions into production-ready, idiomatic SDKs and beautiful, customizable documentation. It supports a docs-as-code workflow that syncs SDKs and documentation directly from API specifications like OpenAPI, AsyncAPI, and gRPC.
Introduced browser-based documentation editing, multi-language translation support in docs, and MCP server support for AI agents.
As of
- Multi-language idiomatic SDK generation
- Docs-as-code with Git-backed versioning
- AI-powered search and agent-ready documentation
- Interactive API Explorer with key injection
- Visual browser-based editor for documentation
API-first companies and engineering teams needing to sync documentation and SDKs while maintaining high code quality across multiple languages.
Teams requiring complex custom business application logic outside of API management or those looking solely for low-cost internal dashboard builders.
Offers a free tier for documentation and paid tiers for documentation and SDK generation. Enterprise pricing is custom.
Fern is an elite, industry-standard choice for professional API developer experiences, offering superior SDK quality and a cohesive docs-as-code pipeline that integrates seamlessly into existing Git workflows.
Is Fern free?
Fern is Freemium. Offers a free tier for documentation and paid tiers for documentation and SDK generation. Enterprise pricing is custom. Check the official site for current plans.
What is Fern best for?
API-first companies and engineering teams needing to sync documentation and SDKs while maintaining high code quality across multiple languages.
Who makes Fern?
Fern is developed by Fern (Postman). It is listed in the AI Codebase Knowledge & Generation category on ai.dosa.dev.
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