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fern

Instant Docs and SDKs for your API
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Fern SDK and Documentation Platform

Fern helps you elevate your developer experience with two powerful products:

  • SDKs - Automatically generates production-ready SDKs that respect the idioms of each language. We support TypeScript, Python, Go, Java, Ruby, C#, PHP, and Swift, with Rust coming soon.

  • Docs - Creates interactive API documentation that developers actually want to use. Features include AI-powered search and chat, content migration tools, docs-as-code workflows, API key injection, access control (RBAC), and versioning.

Both products work with OpenAPI, AsyncAPI, OpenRPC, gRPC, or our simpler Fern Definition format, and can be deployed in the cloud or self-hosted for enterprise security and compliance requirements.

Join the many companies that have chosen Fern as their preferred solution for SDK generation and API documentation.

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  1. fern fern Public

    Input OpenAPI. Output SDKs and Docs.

    TypeScript 3.3k 244

  2. docs-starter docs-starter Public template

    Publish beautiful documentation from OpenAPI and markdown (MDX)

    MDX 34 12

  3. docs docs Public

    Documentation for Fern

    MDX 2 2

Repositories

Showing 10 of 44 repositories
  • fern-platform Public

    Beautiful, interactive documentation websites powered by MDX and OpenAPI. Build, deploy, and maintain a developer documentation site.

    fern-api/fern-platform’s past year of commit activity
    TypeScript 33 Apache-2.0 19 0 29 Updated Sep 14, 2025
  • fern Public

    Input OpenAPI. Output SDKs and Docs.

    fern-api/fern’s past year of commit activity
    TypeScript 3,310 Apache-2.0 244 294 (1 issue needs help) 29 Updated Sep 14, 2025
  • docs Public

    Documentation for Fern

    fern-api/docs’s past year of commit activity
    MDX 2 Apache-2.0 2 12 10 Updated Sep 13, 2025
  • ir-go Public
    fern-api/ir-go’s past year of commit activity
    Go 1 0 0 0 Updated Sep 12, 2025
  • .github Public
    fern-api/.github’s past year of commit activity
    0 0 0 0 Updated Sep 11, 2025
  • fastapi-starter Public

    A starter repo for FastAPI + React, using Fern

    fern-api/fastapi-starter’s past year of commit activity
    JavaScript 17 15 1 3 Updated Sep 11, 2025
  • docs-starter Public template

    Publish beautiful documentation from OpenAPI and markdown (MDX)

    fern-api/docs-starter’s past year of commit activity
    MDX 34 12 0 4 Updated Sep 10, 2025
  • sparse-checkout Public

    A simple GitHub action that reads an in-repo config and then performs a sparse checkout in cone mode

    fern-api/sparse-checkout’s past year of commit activity
    0 0 0 0 Updated Sep 9, 2025
  • generator-exec-go Public

    A Go library for progress updates between the Go generator and Fern's remote generation server.

    fern-api/generator-exec-go’s past year of commit activity
    Go 0 MIT 0 0 0 Updated Sep 9, 2025
  • file-path-opener Public

    Open MD/MDX files from YAML paths and src attributes

    fern-api/file-path-opener’s past year of commit activity
    JavaScript 1 MIT 0 4 0 Updated Sep 8, 2025
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