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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 247

  2. docs-starter docs-starter Public template

    Publish beautiful documentation from OpenAPI and markdown (MDX)

    MDX 33 12

  3. docs docs Public

    Documentation for Fern

    MDX 2 2

Repositories

Showing 10 of 46 repositories
  • fern Public

    Input OpenAPI. Output SDKs and Docs.

    fern-api/fern’s past year of commit activity
    TypeScript 3,319 Apache-2.0 247 288 (1 issue needs help) 35 Updated Sep 24, 2025
  • 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 38 Apache-2.0 20 0 38 Updated Sep 24, 2025
  • docs Public

    Documentation for Fern

    fern-api/docs’s past year of commit activity
    MDX 2 Apache-2.0 2 12 8 Updated Sep 24, 2025
  • ir-go Public
    fern-api/ir-go’s past year of commit activity
    Go 1 0 0 0 Updated Sep 23, 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 23, 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 5 Updated Sep 22, 2025
  • sphinx-autodoc2-fern Public Forked from sphinx-extensions2/sphinx-autodoc2

    A Sphinx extension that automatically generates Fern markdown API documentation for your Python packages.

    fern-api/sphinx-autodoc2-fern’s past year of commit activity
    Python 0 MIT 24 0 0 Updated Sep 19, 2025
  • sync-openapi Public

    A GitHub action to sync OpenAPI specs to your Fern configuration

    fern-api/sync-openapi’s past year of commit activity
    TypeScript 4 1 0 0 Updated Sep 18, 2025
  • docs-starter Public template

    Publish beautiful documentation from OpenAPI and markdown (MDX)

    fern-api/docs-starter’s past year of commit activity
    MDX 33 12 0 4 Updated Sep 17, 2025
  • generator-cli-go Public

    The Go library used to call Fern's generator-cli

    fern-api/generator-cli-go’s past year of commit activity
    Go 0 0 0 0 Updated Sep 16, 2025
View all repositories

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