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Guides · 7 min read · 2026-06-11

How to Use Cursor AI Editor in China — 2026 Developer Guide

Cursor AI's models route through US servers blocked in China. Here's how engineers keep AI-assisted coding fast from mainland China.

If you're trying to get Cursor working reliably from inside Shenzhen on China Mobile, you've probably already discovered that most generic guides don't survive contact with the Great Firewall. This article is written from the opposite direction — start with the constraints China imposes, then work back to the configuration that actually works in 2026.

Why Cursor Is Specifically Hard from China

China's Great Firewall (GFW) is the most sophisticated state-level censorship system on the planet. It combines DNS poisoning, TLS fingerprinting, IP blocking and deep packet inspection (DPI) — and it's been refined continuously through 2026, including a major April-2026 update that broke a lot of previously-working tools.

For Cursor specifically, that means:

  • DNS lookups for the official domains are typically poisoned
  • Direct TLS connections to known endpoints are reset mid-handshake
  • Standard VPN protocols (OpenVPN, WireGuard) are detected and dropped within minutes
  • HTTPS traffic to "innocent-looking" hosts gets through unchanged — *if* you can convince the GFW that's what you are

OxeraVPN's primary protocol — VLESS + Reality — does exactly that: it shapes your VPN traffic to look like a normal HTTPS visit to a real, legitimate website. The GFW can't tell the difference, and Cursor works as if you were browsing from outside China.

Step-by-Step Guide

1. Download OxeraVPN before entering China

This is critical. The App Store and Google Play in mainland China don't carry international VPN apps. Download OxeraVPN before you arrive, or grab the Windows portable .exe from our website (it stays accessible without a VPN):

OxeraVPN for Windows

2. Create your account

Visit dashboard.oxeranet.cloud. The Recon Protocol free plan includes 10 GB on a 30-day trial — enough to test Cursor end-to-end before paying anything.

3. Connect to the right server

From most parts of China, the best options are:

  • Seoul servers — typically 38 ms from Beijing, fastest overall
  • Hong Kong servers — fastest from Guangdong province specifically
  • US servers — only when Cursor is locked to a US-region account

4. Enable the Kill Switch

In OxeraVPN settings → Kill Switch → On. This guarantees that if the tunnel drops unexpectedly, your real IP never leaks — your internet just stops until the tunnel re-establishes.

5. Verify everything

Once connected, open whatismyip.oxeranet.cloud — your IP should match the server you picked. If not, switch protocols (VLESS ↔ Hysteria2) and reconnect.

Performance Tips for China

  • Pick the right protocol for the day. VLESS + Reality is most reliable. Hysteria2 is faster on weak mobile connections and during periods of increased GFW filtering (often around politically sensitive dates).
  • Server proximity matters more than headline speed. A 38 ms latency to Seoul is the difference between smooth Cursor use and frustrating buffering.
  • Peak hours are real. GFW filtering is most aggressive in the evenings (8–11 PM China time). If you hit issues, switch servers or protocols.

Is It Safe to Use a VPN in China?

For foreign nationals, VPN use sits in a legal grey area. Authorities have stated that only government-approved VPNs are technically legal, but enforcement against individual foreign users is essentially nonexistent. Tens of thousands of expats, students and business travelers use VPNs in China daily without incident.

The realistic risk to an individual user is extremely low. The greater risk is traveling to China without a VPN and finding yourself cut off from your work tools, family, and information sources.

Frequently Asked Questions

Is using a VPN in China legal for foreigners?

It's a grey area legally, but enforcement against individual foreign nationals using a VPN for personal use is essentially nonexistent. Tens of thousands of expats, students and business travelers use VPNs in China every day without incident.

Is OxeraVPN really free to try?

Yes. The Recon Protocol free tier includes 10 GB of data on a 30-day trial, no credit card required. It's enough to verify Cursor works in your real conditions before paying anything.

How fast will my connection be?

On a healthy 500 Mbps home line in Wuhan, expect roughly 140 Mbps of usable VPN throughput on VLESS to Osaka — enough for 4K streaming and HD video calls. Latency to nearby Asian servers is typically 71 ms.

What's the fastest way to get started?

Sign up at dashboard.oxeranet.cloud, install the OxeraVPN app on your device, connect to the nearest Singapore or Hong Kong server, and you're online in under 2 minutes. The free plan is enough to test Cursor end-to-end.

Which protocol should I use for Cursor in 2026?

Start with VLESS + Reality — it's the closest thing to invisible from a DPI perspective. Fall back to Hysteria2 if you're on a flaky mobile network or the GFW gets twitchy on a sensitive day.

The Bottom Line

Reliable internet in China requires a VPN that was built for China — not adapted for it. OxeraVPN's VLESS + Reality protocol was designed specifically to bypass the Great Firewall, and it's the same protocol used daily by tens of thousands of people who depend on reliable internet from inside mainland China.

Start with the free plan, no credit card required.