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Documentation Index

Fetch the complete documentation index at: https://nango.dev/docs/llms.txt

Use this file to discover all available pages before exploring further.

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Overview

To authenticate with the Fern Public API, you need:
  1. Docs URL - The domain of your Fern docs site (e.g. docs.example.com)
  2. Fern API key - Generated by running fern token in your terminal
This guide walks you through generating your Fern API key and connecting it to Nango.

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Prerequisites

  • The Fern CLI installed (npm install -g fern-api)
  • A Fern account logged in via fern login

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Instructions

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Step 1: Generate your Fern API key

Run the following command in your terminal: 
fern token
This outputs your FERN_API_KEY. Copy and store it securely — treat it like a password.

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Step 2: Find your docs URL

Your docs URL is the hostname of your Fern docs site, for example docs.example.com.

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Step 3: Enter credentials in the Connect UI

  1. Open the form where you need to authenticate with Fern (Public API).
  2. Enter your Docs URL and Fern API key in their respective fields.
  3. Submit the form, and you should be successfully authenticated.
You are now connected to Fern (Public API).