Runaway agent loops cost real money

Your AI agent can burn your whole API budget overnight — and nobody's watching the meter.

TokenGuard is a drop-in proxy that sits between your app and the LLM API (Anthropic, OpenAI, and friends). It tracks every token in real time and hard-stops the next request the moment your budget threshold hits — before a misconfigured retry or a stuck agent loop turns into a bill you didn't see coming.

No card required. Validation build — see how it works below.

01

Real-time tracking

See token and dollar spend per project, per agent, as it happens — not on next month's invoice.

02

Hard limits, enforced before the bill

Set a spending ceiling and TokenGuard blocks the next request the instant you hit it — automatically, before the bill happens, not after.

03

Drop-in proxy, no rewrite

Point your existing SDK at TokenGuard's proxy URL instead of the provider's. Same code, same calls — budget enforced underneath.

01 Point

Point your API calls at TokenGuard instead of the provider directly.

02 Set

Set your budget limits per project or agent.

03 Get alerted

Get alerted or auto-blocked before you blow your budget.

Building AI agents on someone else's API budget? Get in before it gets in your way.