Answer three plain questions. No token counts, no API keys, nothing to install — just what your AI is quietly costing you, and what one bad night would cost.
Nothing has to go wrong for you to get this. An agent gets stuck repeating itself at 2am — a retry loop, a bad tool call, a prompt that never satisfies its own condition — and it runs until someone wakes up. Six hours, nobody watching:
And the slower version — usage running 20× for three days before anyone notices the graph: $0.
TokenBrake is a circuit breaker for exactly this. Set a budget; a runaway is stopped at the limit — not on your statement.
Cap your bill — free → See how it works