Cloudflare Worker for Claude API Proxy

This Cloudflare Worker script acts as a proxy for the Claude AI API, utilizing Google Cloud Platform (GCP) for authentication.

Features

• 🔄 Proxies requests to Claude AI API
• 🔑 Handles OAuth 2.0 token refresh with GCP
• 🛡️ Implements API key validation
• 🌐 Supports CORS for cross-origin requests
• ⚖️ Load balancing between different GCP regions

Setup

1. Log in to your Cloudflare dashboard.
2. Navigate to Workers & Pages > Create application > Create Worker.
3. Give your worker a name and click "Deploy".
4. In the editor that opens, replace all the code with the contents of the worker.js file from this repository.
5. Click "Save and deploy".

Environment Variables

Set up the following environment variables in your Cloudflare Worker:

• PROJECT_ID: Your GCP project ID
• CLIENT_ID: Your GCP OAuth 2.0 client ID
• CLIENT_SECRET: Your GCP OAuth 2.0 client secret
• REFRESH_TOKEN: Your GCP OAuth 2.0 refresh token
• API_KEY: Your chosen API key for this worker

Obtaining GCP Credentials

To obtain the necessary GCP credentials, use the following steps in Google Cloud Shell:

1. Open Google Cloud Shell for your project.
2. Run the following commands:

gcloud auth application-default login
cat /tmp/tmp.*/application_default_credentials.json

To set environment variables:

1. Go to your Worker's settings.
2. Click on the "Variables" tab.
3. Add each variable under "Environment Variables".

Usage

To use this worker, send requests to your worker's URL with the following headers:

• x-api-key: Your API key (set in the environment variables)
• Other headers as required by the Claude AI API

The worker will handle authentication and forward your request to the Claude AI API.

Security Considerations

• Keep your API_KEY secret and secure.
• Regularly rotate your GCP credentials and update the environment variables.
• Monitor your worker's usage to detect any unusual activity.

License

This project is MIT licensed. 本项目来源：LinuxDO

Contact

If you have any questions or feedback, please open an issue in this repository.