9router - local gateway between coding clis and 60+ providers
About 9Router
Self-hosted router that puts one OpenAI-compatible endpoint in front of many model providers, so Claude Code, Codex, Cursor, Cline and Copilot keep working when a subscription hits its quota. Runs as a local Next.js service on localhost:20128 with its own dashboard, compresses tool output before it reaches the model, and falls back across three tiers of provider. Read the security section before you point a real key at it: nineteen security advisories have been published on the repository, all in July 2026, several of them authentication bypasses in the proxy itself.
Key Capabilities
One OpenAI-compatible endpoint in front of many providers, so a tool is pointed at localhost rather than at each vendor
Automatic fallback across three provider tiers when a subscription quota runs out
Compresses tool output such as diffs and directory listings before it reaches the model
Runs entirely on your own machine, in npm or Docker, with local storage for keys and settings
MIT licensed, 28,000 stars, and still shipping: version 0.5.75 published 2026-09-10
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