Anti-API

The fastest and best local API proxy service! Convert Antigravity's top AI models to OpenAI/Anthropic compatible API

中文说明 | Features | Quick Start | Models

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Disclaimer: This project is based on reverse engineering of Antigravity. Future compatibility is not guaranteed. For long-term use, avoid updating Antigravity.

What's New

• Dual format support (OpenAI + Anthropic) with streaming
• Added .bat one-click launcher for Windows users
• Three exclusive remote services (ngrok/cloudflared/localtunnel) with visual panel
• All models passed tool_use tests, fully compatible with Claude Code
• OAuth expiration auto-detection and refresh
• Two free methods to get Gemini Pro access

Features

• Dual Format Support - OpenAI and Anthropic compatible, both support streaming
• Multi-Model Support - Claude Opus 4.5 thinking / Gemini 3 Pro high / GPT-OSS 120B / ...
• Tool Calling Support - Function calling support, compatible with Claude Code and other CLI tools
• Remote Access - Tunnel management via ngrok/cloudflared/localtunnel, share quota across any device
• Full Dashboard - Web UI for quota and remote services http://localhost:8964/quota http://localhost:8964/remote-panel

Free Gemini Pro Access

Two free methods to get one year of Gemini Pro:

Method 1: Telegram Bot (Quick and stable, one-time free) https://t.me/sheeridverifier_bot

Method 2: @pastking's Public Service (Unlimited, requires learning) https://batch.1key.me

Quick Start

Linux

# Install dependencies
bun install

# Start server (default port: 8964)
bun run src/main.ts start

Windows

Double-click anti-api-start.bat to launch.

macOS

Double-click anti-api-start.command to launch.

Claude Code Configuration

Add to ~/.claude/settings.json:

{
  "env": {
    "ANTHROPIC_BASE_URL": "http://localhost:8964",
    "ANTHROPIC_AUTH_TOKEN": "any-value"
  }
}

Remote Access

Access the tunnel control panel at http://localhost:8964/remote-panel

Supported tunnels:

• ngrok - Requires authtoken from ngrok.com
• cloudflared - Cloudflare Tunnel, no account required, high network requirements
• localtunnel - Open source, no account required, less stable

Supported Models

Model ID
claude-sonnet-4-5
claude-sonnet-4-5-thinking
claude-opus-4-5-thinking
gemini-3-flash
gemini-3-pro-high
gemini-3-pro-low
gpt-oss-120b

API Endpoints

Endpoint	Description
POST /v1/chat/completions	OpenAI Chat API
POST /v1/messages	Anthropic Messages API
GET /v1/models	List models
GET /quota	Quota dashboard
GET /remote-panel	Tunnel control panel
GET /health	Health check

How It Works

Client (OpenAI/Anthropic) --> Anti-API (Port 8964) --> Antigravity Cloud API

1. First run: Opens browser for Google OAuth login
2. Translates requests to Antigravity format
3. Returns responses in OpenAI or Anthropic format

License

MIT

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中文说明

致力于成为最快最好用的API本地代理服务！将 Antigravity 内顶级大模型转换为 OpenAI/Anthropic 兼容的 API

免责声明：本项目基于 Antigravity 逆向开发，未来版本兼容性未知，长久使用请尽可能避免更新Antigravity。

更新内容

• 同时兼容 OpenAI 和 Anthropic 格式，且均支持流式响应
• 增加 .bat 格式一键启动器，适配 Windows 用户
• 三种独家远程服务 (ngrok/cloudflared/localtunnel) 与可视化面板
• 所有模型tool_use测试均通过，完美兼容 Claude Code
• OAuth 过期自动检测和刷新。
• 提供两种免费获取 Gemini Pro 的方法

特性

• 双格式支持 - OpenAI 和 Anthropic 格式兼容，均支持流式响应
• 多模型支持 - Claude Opus 4.5 thinking / Gemini 3 Pro high / GPT-OSS 120B /...
• 工具调用支持 - 支持 function calling，兼容 Claude Code等Cli工具
• 远程访问 - 通过ngrok/cloudflared/localtunnel隧道管理，实现任意设备，额度共享
• 完善面板 - Web UI 查看额度和远程服务 http://localhost:8964/quota http://localhost:8964/remote-panel

免费获取 Gemini Pro

两种免费获取一年 Gemini Pro 的方法：

方式1: Telegram 机器人（快速稳定，免费一次） https://t.me/sheeridverifier_bot

方式2: @pastking 的公益站点（不限次数，有学习成本） https://batch.1key.me

最快速开始

Linux

# 安装依赖
bun install

# 启动服务器（默认端口：8964）
bun run src/main.ts start

Windows

双击 anti-api-start.bat 启动。

macOS

双击 anti-api-start.command ，首次运行会提示损坏，这是mac的保护机制 前往 系统设置 - 隐私 - 底部 - 同意打开.command脚本 - 随后再次双击 anti-api-start.command

Claude Code 配置

在 ~/.claude/settings.json 中添加：

{
  "env": {
    "ANTHROPIC_BASE_URL": "http://localhost:8964",
    "ANTHROPIC_AUTH_TOKEN": "任意值"
  }
}

远程访问

访问隧道控制面板：http://localhost:8964/remote-panel

支持的隧道服务：

• ngrok - 需要从 ngrok.com 获取 authtoken
• cloudflared - Cloudflare 隧道，无需账号，网络要求高
• localtunnel - 开源方案，无需账号，稳定性差

支持的模型

模型 ID
claude-sonnet-4-5
claude-sonnet-4-5-thinking
claude-opus-4-5-thinking
gemini-3-flash
gemini-3-pro-high
gemini-3-pro-low
gpt-oss-120b

API 端点

端点	说明
POST /v1/chat/completions	OpenAI Chat API
POST /v1/messages	Anthropic Messages API
GET /v1/models	获取模型列表
GET /quota	额度面板
GET /remote-panel	隧道控制面板
GET /health	健康检查

工作原理

客户端 (OpenAI/Anthropic) --> Anti-API (端口 8964) --> Antigravity 云 API

1. 首次运行：打开浏览器进行 Google OAuth 登录
2. 将请求转换为 Antigravity 格式
3. 以 OpenAI 或 Anthropic 格式返回响应

开源协议

MIT