# Claude Code Router on Company Laptops > Source: > Published: 2026-11-09 00:00:00+00:00 On November 9, 2026 we installed Claude Code Router 3.1.3 from npm on a Mac, gave it one provider (a mock server on `127.0.0.1` with a dummy key) and started it. Before we had launched anything through it, it had written `ANTHROPIC_BASE_URL=http://127.0.0.1:3456` into `~/.claude/settings.json`, and the next plain `claude` session we opened went through the router. Claude Code Router (CCR, `claude-code-router` on [GitHub](https://github.com/musistudio/claude-code-router)) is an open source, MIT-licensed local model gateway that lets Claude Code use models from other providers. Its README calls it “a local model gateway and control plane for coding agents” that gives Claude Code and nine other agents “one stable local endpoint”, while you manage the providers, models, routing rules and keys behind it.