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Short Answer

No proxy needed, direct connection works. Nebula API supports direct access from China without any proxy or VPN.

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Network Access

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Users in China

Direct Connection
  • No proxy or VPN required
  • Direct access to llm.ai-nebula.com
  • Enterprise dedicated line with excellent quality
  • Low latency, high stability

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International Users

If you’re using Nebula API from overseas:
  • Faster access speeds
  • Direct international routing
  • No additional configuration needed

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Troubleshooting

In rare cases, you may encounter these issues:
SSL/TLS certificate verification failedPossible causes: Incorrect system time, incomplete certificate chainSolutions:
  1. Check and sync system time
  2. Update system root certificates
  3. Try a different network
Connection timeout or unable to connectPossible causes: Local network restrictions, DNS resolution problemsSolutions:
  1. Change DNS server (e.g., 8.8.8.8 or 1.1.1.1)
  2. Check firewall settings
  3. Try mobile network

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Alternative: HTTP Address

If you can’t resolve the above issues, we provide HTTP access as a fallback.
HTTP is unencrypted and should only be used as a temporary solution. Contact support for the HTTP address.

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FAQ

We use compliant enterprise dedicated lines to ensure stable, fast service access for users in China.
  • HTTPS (recommended): Encrypted transmission, high security
  • HTTP (fallback): Plain text, only use temporarily when HTTPS fails
Test with these commands:
# Test API connection
curl -I https://llm.ai-nebula.com

# Test DNS resolution
ping llm.ai-nebula.com
If you get a normal response, the network is working.

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Network Optimization Tips

Improve access speed
  • Ensure accurate system time (avoid certificate errors)
  • Use stable DNS (e.g., 8.8.8.8 or 1.1.1.1)
  • Prefer wired over Wi-Fi
  • Regularly update root certificates

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Support

For network issues, contact support:

Email Support

mla@nebula-data.com - Technical support, fast response