For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
Book a demoLog inStart for free
  • Getting started
    • Overview
    • How it works
    • Quickstart
    • Project structure
    • Customer showcase
    • Changelog
  • Configuration
    • Overview
    • Site-level settings
    • Page-level settings
  • Writing content
    • Markdown basics
    • Rich media in Markdown
    • Fern Editor
    • Reusable snippets
  • AI features
    • Overview
    • Fern Writer
    • AI-generated examples
    • Markdown access
      • Overview
      • Customize LLM output
      • Agent directives
      • Analytics and integration
    • MCP server
    • API catalog discovery
  • Public API
    • GETJWT from Fern API key
    • GETAlgolia search credentials
    • GETCurrent user information
  • Fern Writer API
    • GETGet Fern Writer Install Link

Changelog

April 21, 2026
April 21, 2026

Target the logo from custom scripts

<Fern.Logo /> now renders with a data-fern-logo attribute so custom scripts can target the logo with document.querySelector('#fern-header [data-fern-logo]'). Use this to rewrite the logo’s href on certain pages or modify other behavior.

Read the docs
Was this page helpful?
Edit this page
Previous

April 22, 2026

Next

April 20, 2026

Checking status...
SOC2Soc 2 Type II
© 2026 Fern • Birch Solutions, Inc., a Postman company

Documentation

SDKsDocsAsk FernCLI Reference

API Definitions

OpenAPIAsyncAPIOpenRPCgRPC

Resources

BlogSupportPricingSlack

Company

Brand KitPrivacy PolicyTerms of Service
LogoLogo
Book a demoLog inStart for free