How to Use OpenRouter With Any Coding Agent or AI Tool

Shows how to connect any coding agent or AI tool to OpenRouter using a single key (sk-or-…) and base URL (https://openrouter.ai/api/v1) to reach 300+ models across 70+ providers. The three steps (generate a key, point the base URL, select a provider/model) apply to tools like Claude Code, Cursor, and Cline, with automatic provider failover and free models offering up to 50 requests daily (1,000 with $10 in credits) plus a 5.5% fee on credit purchases.