AI spend & uptime monitor

Stop opening your AI bill and choking on your coffee.

Paste your OpenAI or Anthropic key and see exactly where every dollar goes — live, in five minutes, with zero SDK to install.

Start monitoring See how it works
Live in 5 minutesNo code, no SDKRead-only keys
app.tokenlens.io/overviewLIVE
Spend · March
$0.00
+18% vs February
Mar 1Mar 14
By model
gpt-4o$1,204.88
claude-sonnet-4$911.40
gpt-4o-mini$498.22
text-embedding-3$299.56
The moment

This is what a runaway agent loop looks like in real time.

Unmonitored spend · 72 hours
$0.00

One mis-configured retry turned a $40/day workload into this. It ran all weekend. Nobody was watching.

With TokenLens
We caught this spike at $312 and paused the key — 3 hours in, not 72.
Sound familiar?

You shipped the AI feature. Then the bill shipped you.

“Nearly choked on my coffee. $500.”
r/SaaS · unexpected_invoice
TokenLens does

Daily spend digests and a running month-to-date total, so the number is never a surprise at the end of the month.

“I had NO idea what happened.”
r/OpenAI · token_mystery
TokenLens does

Per-model, per-endpoint, per-feature attribution. Trace any dollar back to the exact call that spent it.

“Burned through tokens in 5 days.”
r/LLMDevs · gone_in_5_days
TokenLens does

Spend-velocity alerts that fire on the rate of burn, not just the total — before the weekend wipes you out.

Set up in the time it takes your coffee to cool.

No instrumentation. No wrapping your SDK calls. Three steps, read-only.

1Connect
sk-proj-

Paste your API key

OpenAI or Anthropic. Read-only access — TokenLens can see usage, never touch your data or send a single request on your behalf.

2Watch

See spend in real time

A live dashboard of every model, endpoint and feature. Dollar amounts update as the requests land, not a day later.

3Relax

Get alerted before it hurts

Set a threshold or let TokenLens learn your baseline. Slack, email or webhook fires the moment burn rate breaks pattern.

For Helicone refugees

Coming from Helicone? Import in 30 seconds.

Helicone went into maintenance mode after the acquisition. We built a one-click importer for your projects, dashboards and alert rules — so you keep your history and lose none of your setup.

Import my workspace
Pricing

Costs less than the spike it catches.

Every plan is read-only, sets up in five minutes, and cancels anytime.

Solo
One project, one founder, full visibility.
$19/mo
Start with Solo
1 connected key
Real-time spend dashboard
Email spend alerts
30-day history
Pro
For founders running real AI features in production.
$49/mo
Start with Pro
5 connected keys
Per-feature attribution
Burn-rate & anomaly alerts
Slack + webhook delivery
1-year history
Team
Shared visibility for the whole company.
$99/mo
Start with Team
Unlimited keys
Seats & roles
Budgets per project
SSO & audit log
Unlimited history
Get on the waitlist

Be the first to stop flying blind.