Know where your AI budget is going before the invoice does

Connect your Anthropic, OpenAI, and Gemini keys and see spend broken down by feature, model, and day, in one dashboard.

3 providers, one view
Session-only, no signup
No data stored
5 minute setup

Cross-provider normalization

Anthropic, OpenAI, and Gemini usage converted to one common cost model, so dollars actually compare.

Per-feature breakdown

See which feature, model, or prompt template is burning budget, not just a total number.

No accounts, no storage

Paste your keys, see the chart, close the tab. Nothing is saved on our end.

How it works

1

Paste your API keys

Add keys for up to three providers directly in the browser, nothing leaves your session.

2

Pull your usage logs

The app fetches recent usage data straight from each provider's API.

3

Read the breakdown

See a bar chart of spend by date and model, so you know exactly where the money went.

Before / After

Without
  • Provider dashboards only show a total, not what drove it
  • Surprise invoices after a feature ships wide
  • No shared view across Anthropic, OpenAI, and Gemini
With TokenLens
  • See spend by feature, model, and day, across every provider
  • Catch a cost spike the day it happens, not the day you're billed
  • One dashboard instead of three tabs and a spreadsheet

FAQ

Do you store my API keys?

No. Keys are used for the session only and never written to disk or a database.

Which providers are supported?

Anthropic, OpenAI, and Gemini today, up to three connected at once.

Do I need to create an account?

No. There are no accounts on day one, paste your keys and go straight to the chart.

See what's burning your budget, right now

Connect your keys