Use Claude Code's autonomous agent loop with DeepSeek V4 Pro , OpenRouter , or any Anthropic-compatible backend. Same UX, 17x cheaper. What this does Claude Code is the best autonomous coding agent — but it costs $200/month with usage caps. DeepSeek V4 Pro scores 96.4% on LiveCodeBench and costs $0.87/M output tokens. deepclaude swaps the brain while keeping the body: Your terminal └── Claude Code CLI (tool loop, file editing, bash, git — unchanged) └── API calls → DeepSeek V4 Pro ($0.87/M) instead of Anthropic ($15/M) Everything works: file reading, editing, bash execution, subagent spawning, autonomous multi-step coding loops. The only difference is which model thinks. Quick start (2 minutes) 1. Get a DeepSeek API key Sign up at platform.deepseek.com , add $5 credit, copy your API key. 2.…