CCORP - Anthropic to OpenAI/OpenRouter Adapter

Use Claude Code Cli with any OpenRouter model.

CCORP (Claude Code OpenRouter Proxy) is a high-performance Rust application that acts as an adapter between the Anthropic API format and the OpenAI/OpenRouter API format. It provides a seamless bridge for applications expecting Anthropic's API to work with OpenRouter's extensive model collection.

Features

• API Translation: Converts Anthropic API requests to OpenAI/OpenRouter format and vice versa
• Streaming Support: Full support for both streaming and non-streaming API calls
• Model Mapping: Flexible configuration to map Claude models to any OpenRouter-supported model
• Web UI: Built-in web interface for easy model switching at runtime
• Request Logging: Optional logging of all requests and responses for debugging

Installation

Via Cargo

Prerequisites

• Rust and Cargo: https://www.rust-lang.org/tools/install

cargo install --git https://github.com/terhechte/CCORP --bin ccor

Via Releases

Download the latest binary from the releases page.

Note macOS Users:

After downloading the binary you need to remove the gatekeeper quarantine attribute:

xattr -r -d com.apple.quarantine ccor

Configuration

Step 1: Environment Setup

Create a .env file in the root directory with your OpenRouter API key:

OPENROUTER_API_KEY=your_openrouter_api_key_here

Step 2: Model Configuration

Create a config.json file to configure the port and model mappings:

{
  "port": 3000,
  "models": {
    "haiku": "qwen/qwen-2.5-coder-32b-instruct",
    "sonnet": "moonshotai/kimi-k2",
    "opus": "deepseek/deepseek-r1"
  }
}

You can map Claude models to any model available on OpenRouter.

Running the Application

Basic Usage

cargo run

The server will start on 0.0.0.0:3000 (or the port specified in config.json).

With Request Logging

To enable logging of all requests and responses:

cargo run -- --logging logs

This creates timestamped JSON files in the logs directory for each request/response pair.

Using with Claude Code CLI

CCORP is designed to work seamlessly with Anthropic's Claude Code CLI:

1. Start CCORP (it will run on port 3000 by default)

2. Set environment variables:

   export ANTHROPIC_BASE_URL=http://localhost:3000
   export ANTHROPIC_AUTH_TOKEN="your_openrouter_api_key"

3. Run Claude Code as normal:

   claude

Web UI for Model Management

CCORP includes a web interface for dynamically switching models without restarting the server.

Visit http://localhost:3000/switch-model in your browser to:

• View all available OpenRouter models
• Change model mappings for Haiku, Sonnet, and Opus

Changes are saved to config.json and take effect immediately.

Development

Building

cargo build --release

Running Tests

cargo test

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

CCORP is licensed under the MIT License. See LICENSE for details.