claudeapi.com is a reliable Claude API gateway designed for developers who need seamless, low-latency access to Anthropic's Claude model family — including Claude Sonnet, Claude Opus, and Claude Haiku — without regional restrictions. We provide a drop-in replacement for the Anthropic API endpoint, fully compatible with the official Anthropic SDK and OpenAI-format clients. Just swap your base URL and API key — no other code changes required. Key Features: ✅ Direct access to Claude 3.5 / Claude 4 series models ✅ Native Anthropic format + OpenAI-compatible format both supported ✅ Streaming (SSE) fully supported ✅ Pay-as-you-go pricing, no monthly subscription lock-in ✅ Optimized routing via CN2 GIA for users in mainland China ✅ Supports function calling, vision, extended thinking, and PDF input Ideal for individual developers, startups, and teams building Claude-powered applications who want stable API access without the friction of direct Anthropic account setup.