# Antigravity Tools (2API Edition) ๐
---
**Antigravity Tools 2.2** is a robust desktop application that transforms your desktop into a powerful **Local AI Gateway**.
It not only manages your Gemini / Claude accounts but also provides a **local OpenAI-compatible API server**. This allows you to use your browser-based Google/Claude sessions (`sid`, `__Secure-1PSID`, etc.) as standard API keys in any AI application (Cursor, Windsurf, LangChain, etc.).
> **Looking for the Account Manager Only version?**
> The v2.0 Account Manager documentation has been moved to [README_v2.md](./README_v2.md).
## ๐ API Proxy: In-Depth
Antigravity's proxy is not just a forwarder, but a complete **Local AI Scheduler**.
### 1. ๐ Smart Account Rotation
When you have multiple accounts:
- **Load Balancing**: Requests are distributed across healthy accounts.
- **Auto Failover**: If an account hits `429` (Rate Limit), the system **instantly** switches to the next account and retries.
- **Quota Awareness**: Exhausted accounts are automatically skipped.
### 2. ๐ง Perfect Context
Fully compatible with OpenAI's `messages` format. Multi-turn conversations work seamlessly in apps like Cursor, Windsurf, or NextChat.
### 3. ๐ Multi-Protocol Support (NEW!)
Supports both **OpenAI** and **Anthropic API** formats:
- **OpenAI Protocol**: `/v1/chat/completions` - Compatible with Cursor, Windsurf, NextChat, etc.
- **Anthropic Protocol**: `/v1/messages` - Native support for Claude Code CLI and other tools
- **Auto Conversion**: Automatically converts requests to Gemini format for perfect compatibility
๐ Claude Code CLI Setup Guide
#### Quick Setup
**Temporary Use** (run each time you open terminal):
```bash
export ANTHROPIC_API_KEY="sk-antigravity" # Use the API Key from the app
export ANTHROPIC_BASE_URL="http://127.0.0.1:8045"
claude "write a quicksort algorithm"
```
**Permanent Setup** (one-time configuration):
```bash
# Edit config file (macOS/Linux)
nano ~/.zshrc
# Add these lines to the end
export ANTHROPIC_API_KEY="sk-antigravity"
export ANTHROPIC_BASE_URL="http://127.0.0.1:8045"
# Reload config
source ~/.zshrc
```
#### Usage Examples
```bash
# Basic conversation
claude "what is 1+1"
# Multi-turn conversation
claude "what did I just ask"
# Code generation
claude "write a quicksort in Python"
```
#### Notes
1. **Ensure Service Running**: Make sure Antigravity API Proxy is running before use
2. **API Key**: Copy the generated API Key from "API Proxy" page
3. **Port Configuration**: Default port is 8045, update `ANTHROPIC_BASE_URL` if changed
### 3. Connect
| **Gemini 3 Pro Image (Imagen 3)** | **Claude 3.5 Sonnet (Thinking)** |
| :---: | :---: |
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|
|
| **NextChat - Image Gen/Edit** | **Windsurf/Cursor - Complex Coding** |
