How to Access Claude & GPT API in China (2026 Guide)

发布于 2026-05-31 · Safa API

Developers in mainland China face a real problem: Anthropic and OpenAI don't officially serve the region, direct connections are blocked, and payment requires overseas cards. This guide shows how an API relay solves all three.

Why direct access fails

The official endpoints (api.anthropic.com, api.openai.com) are unreachable on Chinese networks. Even with a VPN, you face account risk-control, card rejections, and unstable latency.

The relay approach

An API relay sits overseas, connects directly to the official providers, and exposes an OpenAI-compatible interface. You just swap the Base URL and API key — no VPN, no foreign card needed.

Quick setup

Cursor

Settings → Models → enable "Override OpenAI Base URL", paste the relay URL and key, set model to claude-opus-4-8.

Claude Code

export ANTHROPIC_BASE_URL="https://your-relay-url"
export ANTHROPIC_API_KEY="your-key"
claude

What to look for in a relay

Factor	Why it matters
Direct upstream	Avoids quality degradation from reverse-engineered routes
Model coverage	Latest Opus 4.8, GPT-5.5, Gemini 3 Pro
Protocol support	Both OpenAI & native Anthropic format

Looking for a stable, direct-upstream relay that supports Claude, GPT and Gemini with one key? Give ours a try.

立即开始使用 Safa API API 中转

官方直连 · 一个接口接入 Claude / GPT / Gemini · 7×24 稳定

免费注册试用 →