Solving Antigravity Login Issues for Chinese Users: A Complete Developer Guide

Published on ClawList.io | Category: Development | Author: ClawList Editorial Team

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If you've been wrestling with Antigravity login failures as a developer based in mainland China, you're not alone. This is one of the most frequently reported friction points in the Chinese developer community, and the good news is that it's entirely solvable. In this guide, we'll break down the root causes, walk through proven solutions, and help you get back to building AI automation workflows without the authentication headaches.

Community Credit: Special thanks to @sagacity for surfacing this issue and fostering discussion within the developer community.

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Why Chinese Users Face Antigravity Login Problems

Before jumping into fixes, it's worth understanding why this problem exists in the first place. Antigravity, like many modern AI-powered platforms, relies on a combination of third-party authentication services, CDN-delivered assets, and real-time token verification endpoints — many of which are hosted on infrastructure that faces connectivity challenges from mainland China.

Here are the most common culprits:

• Third-party OAuth providers (Google, GitHub, etc.) are inaccessible or slow without a stable proxy
• Token verification endpoints may time out due to GFW (Great Firewall) interference
• CDN-delivered JavaScript bundles for the login UI may fail to load entirely, causing silent authentication failures
• IP geolocation restrictions may trigger CAPTCHA loops or block API calls outright
• DNS pollution can redirect authentication service domains to incorrect IP addresses

Understanding these layers is critical. A login failure on the surface often masks a deeper network-layer issue that a simple page refresh won't fix.

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Step-by-Step Solutions for Domestic Users

1. Configure a Reliable Network Proxy

This is the most foundational fix. If your network environment doesn't allow reliable outbound HTTPS connections to international servers, virtually every other fix will be a band-aid.

Recommended approach:

# Set system-level proxy (example for macOS/Linux)
export http_proxy=http://127.0.0.1:7890
export https_proxy=http://127.0.0.1:7890
export all_proxy=socks5://127.0.0.1:7890

For Windows users, configure the proxy through System Settings → Network & Internet → Proxy or use a tool like Clash for Windows to manage routing rules.

Pro tip: Use TUN mode in your proxy client if available. TUN mode routes all traffic at the network interface level, bypassing application-level proxy limitations and ensuring authentication service calls are properly tunneled.

2. Verify DNS Resolution

DNS pollution is a subtle but devastating cause of login failures. Even with a proxy active, if your DNS resolver returns incorrect IPs for authentication endpoints, connections will fail before they even get started.

# Check how a domain resolves locally
nslookup auth.antigravity.ai

# Compare against a trusted resolver
nslookup auth.antigravity.ai 8.8.8.8
nslookup auth.antigravity.ai 1.1.1.1

If the results differ significantly, you have a DNS poisoning issue. Fix it by:

• Switching to encrypted DNS (DNS-over-HTTPS or DNS-over-TLS)
• Configuring your proxy client to handle DNS resolution remotely
• Using 8.8.8.8 or 1.1.1.1 as fallback resolvers in your OS network settings

3. Use Browser Developer Tools to Identify Failing Requests

If you're still hitting a wall, open Chrome or Firefox DevTools and monitor the Network tab while attempting to log in.

Steps:
1. Open DevTools (F12 or Cmd+Option+I)
2. Navigate to the Network tab
3. Filter by "XHR" or "Fetch"
4. Attempt login
5. Look for requests with status 0, 403, 429, or ERR_CONNECTION_TIMED_OUT

Common failure patterns to look for:

| Status Code | Likely Cause | Action | |-------------|-------------|--------| | 0 / Timeout | Network block or DNS failure | Enable/fix proxy | | 403 Forbidden | IP geolocation block | Switch proxy region | | 429 Too Many Requests | Rate limiting from repeated failed attempts | Wait 10–15 min, then retry | | 401 Unauthorized | Token/session issue | Clear cookies and cache |

4. Clear Authentication State and Retry Clean

Corrupted or expired session tokens cached in your browser can cause persistent login loops, especially if a previous failed login attempt partially wrote authentication data.

// Run in browser console to manually clear auth-related storage
localStorage.clear();
sessionStorage.clear();

// Then clear cookies via DevTools:
// Application → Cookies → Right-click domain → Clear

After clearing, close all browser tabs, reopen a fresh window, and attempt login again with your proxy fully active.

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Advanced Configuration for Developers and Automation Engineers

If you're integrating Antigravity into an automated pipeline or OpenClaw skill workflow, hardcoded browser-level login won't scale. Here's how to handle authentication programmatically in a China-friendly way.

Use Environment-Level Proxy for API Clients

When calling Antigravity APIs from Node.js, Python, or any backend service, ensure your HTTP client respects proxy settings:

# Python example using requests with proxy
import requests

proxies = {
    "http": "http://127.0.0.1:7890",
    "https": "http://127.0.0.1:7890",
}

response = requests.post(
    "https://api.antigravity.ai/auth/token",
    json={"username": "your_user", "password": "your_pass"},
    proxies=proxies,
    timeout=15
)

print(response.status_code, response.json())

// Node.js example using axios with proxy
const axios = require('axios');
const { HttpsProxyAgent } = require('https-proxy-agent');

const agent = new HttpsProxyAgent('http://127.0.0.1:7890');

const response = await axios.post(
  'https://api.antigravity.ai/auth/token',
  { username: 'your_user', password: 'your_pass' },
  { httpsAgent: agent, timeout: 15000 }
);

console.log(response.data);

Token Caching Strategy

Avoid re-authenticating on every request. Implement a simple token cache with expiry logic:

import time

token_cache = {"token": None, "expires_at": 0}

def get_valid_token():
    if token_cache["token"] and time.time() < token_cache["expires_at"]:
        return token_cache["token"]
    
    # Re-authenticate
    new_token = authenticate()  # your auth function
    token_cache["token"] = new_token
    token_cache["expires_at"] = time.time() + 3600  # 1-hour TTL
    return new_token

This pattern is especially important in high-latency environments like mainland China, where unnecessary re-authentication amplifies delays.

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Conclusion: Connectivity Shouldn't Block Your Creativity

Antigravity login issues for Chinese users are fundamentally a network infrastructure problem, not a platform bug. Once you understand the layers involved — DNS resolution, proxy tunneling, session management, and API client configuration — the path to a reliable login experience becomes clear.

Key takeaways:

• ✅ Always use a proxy with TUN mode enabled for seamless coverage
• ✅ Validate DNS resolution independently of your proxy
• ✅ Use browser DevTools to diagnose exactly which request is failing
• ✅ Clear browser auth state before retrying a failed login
• ✅ For automated workflows, configure proxy at the HTTP client level and implement token caching

Whether you're exploring Antigravity as a standalone AI tool or integrating it into a larger OpenClaw automation stack, these fixes will get you past the login gate and into productive building.

Have additional solutions that worked for you? Share them in the ClawList.io community forum or ping us on X — the developer community grows stronger when we solve these friction points together.

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Tags: Antigravity, Chinese developers, login issues, proxy configuration, AI tools, OpenClaw, developer guide, network troubleshooting, GFW, automation

Originally referenced from: https://x.com/sagacity/status/2011075862561767588