6. Configure CLI tools

FHRouter is meant to work with Claude Code, Codex CLI, Gemini CLI, and compatible apps that follow the same request format.

Prerequisites

Before you continue, make sure you already have:

• a working local environment from 5. Check your environment
• an FHRouter account
• wallet balance
• an FHRouter API key

Endpoint overview

You can confirm the host and path mapping inside the FHRouter dashboard.

Use the correct path for the client you are configuring:

Client type	Base URL
Claude Code and Anthropic-native tools	https://api.fhrouter.com
Codex, OpenAI SDKs, and OpenAI-compatible tools	https://api.fhrouter.com/v1
Gemini CLI and Gemini-native tools	https://api.fhrouter.com/v1beta

OpenAI-compatible tools need /v1

If the app expects the OpenAI format, do not use the root host by itself. Use:

https://api.fhrouter.com/v1

That includes Codex CLI and most OpenAI SDK examples.

Claude-native and Gemini-native clients use different paths

• Claude Code uses https://api.fhrouter.com
• Gemini CLI uses https://api.fhrouter.com/v1beta

Install the client you want

If you still need to install the CLI packages:

npm i -g @anthropic-ai/claude-code@latest
npm i -g @openai/codex@latest
npm i -g @google/gemini-cli@latest

Continue with the matching guide

Use the guide that matches your client:

• Claude Code setup
• Codex CLI setup
• Gemini CLI and Antigravity setup

Optional: use FH Switch instead of editing config files by hand

If you prefer a desktop manager that can sync one FHRouter provider into Claude Code, Codex, Gemini CLI, OpenCode, and OpenClaw, use:

• 1. Common Steps
• 2. Claude Code
• 3. Codex
• 4. Gemini