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Fern

Instant Docs and SDKs for your API
README.md

Fern SDK and Documentation Platform

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.

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  1. fern fern Public

    Input OpenAPI. Output SDKs and Docs.

    TypeScript 3.7k 329

  2. docs-starter docs-starter Public template

    Publish beautiful documentation from OpenAPI and markdown (MDX)

    MDX 40 25

  3. docs docs Public

    The documentation for Fern (kind of meta, eh?)

    MDX 7 8

  4. fern-mcp-server fern-mcp-server Public

    Model Context Protocol (MCP) server for the Fern API.

    TypeScript 5 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 3,703 Apache-2.0 329 233 114 Updated Jul 9, 2026
  • docs Public

    The documentation for Fern (kind of meta, eh?)

    fern-api/docs’s past year of commit activity
    MDX 7 Apache-2.0 8 0 9 Updated Jul 9, 2026
  • agent-score Public

    Rate docs sites on their agent readiness

    fern-api/agent-score’s past year of commit activity
    TypeScript 1 1 0 2 Updated Jul 8, 2026
  • docs-templates Public
    fern-api/docs-templates’s past year of commit activity
    MDX 0 0 0 1 Updated Jul 8, 2026
  • 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 1 0 Updated Jul 8, 2026
  • skills Public
    fern-api/skills’s past year of commit activity
    1 0 0 2 Updated Jul 1, 2026
  • 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 Jun 30, 2026
  • fastapi-starter Public

    A starter repo for FastAPI + React, using Fern

    fern-api/fastapi-starter’s past year of commit activity
    JavaScript 19 14 0 5 Updated Jun 29, 2026
  • 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 5 1 0 0 Updated Jun 24, 2026
  • docs-starter Public template

    Publish beautiful documentation from OpenAPI and markdown (MDX)

    fern-api/docs-starter’s past year of commit activity
    MDX 40 25 0 2 Updated Jun 15, 2026
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