orcc

Run Claude Code via OpenRouter instead of the Anthropic API.

Why

OpenRouter gives you access to Claude models through a single API key, with unified billing across providers.

Install

go install github.com/borje/orcc@latest

Or build from source:

git clone https://github.com/borje/orcc
cd orcc
go install .

Setup

1. Get an API key at https://openrouter.ai/keys
2. Add it to ~/.config/orcc/config.yaml (created automatically on first run):

api_key: "sk-or-..."

Usage

orcc claude                  # start Claude Code
orcc claude --print "hello"  # pass args to claude
orcc models                  # list available models (pipes to fzf if installed)

All arguments after claude are passed through to the claude CLI unchanged.

Configuration

~/.config/orcc/config.yaml:

api_key: "sk-or-..."

# Model used when you don't pass --model
default_model: "anthropic/claude-sonnet-4.6"

# Models used internally by Claude Code for different roles
models:
  opus: "anthropic/claude-opus-4.7"
  sonnet: "anthropic/claude-sonnet-4.6"
  haiku: "anthropic/claude-haiku-4.5"
  subagent: "anthropic/claude-opus-4.7"

You can swap in any model available on OpenRouter — not just Anthropic ones.

How it works

orcc claude replaces itself (via exec) with the claude process after setting:

• ANTHROPIC_BASE_URL=https://openrouter.ai/api
• ANTHROPIC_AUTH_TOKEN=<your key>
• model env vars for each Claude Code role

Claude Code never knows it's talking to OpenRouter.

Requirements

• Go 1.21+
• Claude Code installed (claude in PATH)