Drop-in proxy for LLM API traffic

The circuit breaker for your token spend.

One runaway agent loop can burn a month's API budget overnight. TokenGuard sits in front of your LLM calls, tracks spend in real time, and hard-stops the moment a loop crosses your limit — before the bill, not after.

How it works
<1ms
Added latency
per proxied call
Hard stop
At your limit
not a warning email
Drop-in
One base-URL swap
no SDK changes
$0
Overnight surprises
the whole point
How it works

Three steps between your agent and a $4,000 mistake

01

Point your calls at TokenGuard

Swap one base URL. Every request to your LLM provider now passes through the proxy first — no SDK changes, no rewrite.

02

It meters spend in real time

Every prompt and completion is counted and priced as it happens, against a per-run and per-day budget you set — not reconciled hours later on an invoice.

03

It trips before you overspend

Cross the limit and the next call is refused, not logged-and-forwarded. A runaway loop stops at your number instead of at your credit-card ceiling.

Early access

Put a hard limit on your agent's spend.

TokenGuard is in early access. Leave your email and we'll reach out when self-serve proxy keys open up.