Welcome

Everything you need to build the best developer experience

Your Fern-powered docs site comes with a lot more than pages and styling. Here's what's built in.

API Reference that writes itself

Point Fern at your OpenAPI spec and get a full, interactive API reference — no manual work required.

Let users make real API calls right from your docs — reduce time to first 200

Auto-generated code examples in TypeScript, Python, Go, and more

Realistic request and response examples created automatically

Customize sections, ordering, and content in your API docs

AI-powered search that answers questions using your docs — not just links

A Slack-based AI agent that updates your documentation via GitHub PRs

Makes your docs readable by AI tools and LLMs — generated automatically

Metadata, slugs, and redirects so your docs rank in search results

Serve docs from your own domain like docs.yourcompany.com

Connect your favorite tools with zero custom code.

Track traffic and user behavior

Product analytics and session replay

In-app support chat for your docs

Share a preview of your changes before going live

Edit docs visually in the browser — no Git or markdown needed