Claude Code API (code0.ai)

Claude Code API (code0.ai) is a professional proxy service built for developers and enterprises in China who need direct access to Anthropic's Claude models. It tackles the regional hurdles that often stall projects—registration blocks, unstable network connections, and international payment difficulties—so you can spend your time building products instead of wrestling with infrastructure.

The service delivers a high-speed, stable, and 100% compatible API interface, which means your existing code and SDK integrations keep working without any modification. You can call the full family of Claude models, including Opus, Sonnet, and Haiku, directly over domestic networks with reliable performance.

Payment is just as frictionless: widely used Chinese methods like Alipay and WeChat are fully supported, removing the need for foreign credit cards or cumbersome currency conversion. From setup to billing, every step is designed to keep teams in China working smoothly and productively with Claude.