Fern helps you deliver an exceptional developer experience with two powerful, fully integrated products:
SDKs
Generate production-ready SDKs that feel hand-written. Fern respects the idioms and conventions of each language. Supported today: TypeScript, Python, Go, Java, Ruby, C#, PHP, Swift, and Rust.
Docs
Publish beautiful, interactive API docs that developers enjoy using. Highlights include: docs-as-code, CI/CD pipeline to update API reference, RBAC for multiple audiences, and auto-populating API credentials.
Fern Docs work with OpenAPI (HTTP), AsyncAPI (WebSocket), and gRPC (Protobuf). Deployed on our cloud-hosted or self-hosted offerings.
Join the companies — like Square, ElevenLabs, and Adobe - that have chosen Fern as their preferred solution for SDK generation and API documentation.