9router

9Router is a free, open-source AI router that unifies access to over 60 AI providers through a single OpenAI-compatible endpoint. It solves a critical pain point for developers and AI power users: the constant interruption of hitting rate limits or quota caps on individual provider subscriptions. By installing a lightweight CLI tool (`npm install -g 9router`) and running it locally on `localhost:20128`, you can connect your favorite coding assistants—Claude Code, Codex, Cursor, Cline, Copilot, and Antigravity—to a vast pool of AI backends including Claude, GPT, Gemini, and dozens more. Its core intelligence is a three-tier fallback system: Tier 1 uses your own subscriptions (Claude Code, Codex, Gemini, Copilot); Tier 2 falls back to cheap providers (GLM at $0.60, MiniMax at $0.20, Kimi at $9/mo); and Tier 3 taps into genuinely free providers (iFlow, Qwen, Kiro, OpenCode) with unlimited usage. The router automatically switches providers when quotas are exhausted, ensuring zero downtime and continuous coding flow. 9Router goes beyond mere chat completions. It supports nine service kinds including chat/LLM, embeddings, text-to-speech, speech-to-text, image generation, vision/image-to-text, video generation, web search, and web fetch. Advanced features include smart combos (chain providers with sticky round-robin), format translation between OpenAI/Anthropic/Gemini formats, multi-account load balancing, Cloudflare tunnel for remote access, RTK and Caveman token optimization (saving 20–65% tokens), and an MITM bridge to intercept IDE subscription traffic (e.g., GitHub Copilot) and reroute it through 9Router. What sets 9Router apart is its freemium model—eight providers are permanently free, with no usage limits—and its developer-first design. It integrates seamlessly with ten CLI/IDE tools out of the box, offers real-time quota tracking, and is fully open-source on GitHub. Whether you're a solo developer, a team, or a power user juggling multiple AI services, 9Router