Casbin Gateway

📦⚡️ Casbin Gateway
See what every AI coding agent on your machine is doing, and whether the API behind it is the one you paid for.

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Every coding agent on the machine

Any model vendor behind one endpoint

- Is that API key what it was sold as? A reseller can serve a cheaper model, fake a cache hit, or quietly drop a parameter it claims to support. Authenticity probes every provider on its own and grades it A–F, and grades a single endpoint without installing anything.
- What every agent did, spent and sent. Every prompt and tool call, the spend read from the agents' own transcripts, and, on Windows, where each agent's own processes upload data, including what never passes through any proxy.
- One place for all of them. Point Claude Code, Codex, Cursor, Gemini CLI and the rest at any of 44 model vendors, fall over to another vendor when one runs out or goes down, say what each may do, and install, upgrade or roll back the agents themselves.

Run it

One command. No database, no Go, no Node, no configuration.

On Linux and macOS:

On Windows, in PowerShell:

Either one downloads the build for this machine, unpacks it into ~/.local/share/casbin-gateway (%LOCALAPPDATA%\casbin-gateway on Windows), puts a casbin-gateway command on your PATH, starts it, and arranges for it to start again when you log in. The terminal you installed from is yours again straight away.

Gateway then opens in its own window — no sign-in: it serves this machine only and signs the local admin in on sight. Closing that window leaves Gateway running behind its tray icon, which is also where you reopen the window, turn Start at Login off and on — Settings → Startup is the same switch — and quit for real. There is a Casbin Gateway entry on your desktop and in the Start menu, in…