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Billing infrastructure
for Agents and AI companies

Measure, gate, and charge: the entire billing stack for your agent or AI product, in one API.

Start buildingRead the docs

Integrate with your framework of choice

Trusted by

Create the usage-based plan you dream of

Pro

Live

$199/ month

API calls600,000 / 1M
Emails sent22,000 / 50k
Storage90 / 100 GB
  • usage.track · api_calls+1 · now
  • usage.track · api_calls+12 · 3s
  • usage.track · emails+40 · 8s

Charge for what they actually use.

Include usage in the plan, track every call with one line of code, and bill the overage automatically at period end. No manual reconciliation.

Build a usage planusage.track()

Ingest any event you want

Read the tracking docs
Writing event…
Read the tracking docs

We manage every entitlement

Every request asks Commet first. Plan, usage and limits decide in real time whether a customer can use a feature, and how much they have left.

Gate a featureusage.check()
Request
await commet.usage.check({
  customerId: "user_123",
  featureCode: "video_gen",
  quantity: 1,
})
Response14ms
Allowed

Balance440 → 320 credits

Pro · 2,000 credits / month

Request
await commet.usage.check({
  customerId: "user_123",
  featureCode: "video_gen",
  quantity: 1,
})
Response14ms
Allowed
Balance
440 credits
This request
−120
After
320 credits

Pro · 2,000 credits / month

We manage the subscription, end to end

Everything that happens after checkout: discounts, plan changes, pauses, add-ons and invoices, handled for you.

Start buildingRead the docs
20%OFF14-day trial
SAVE20Applied ✓
Pro · monthly$99.00$79.20

Discounts, codes, and trials

Promo codes, percentage discounts, and time-boxed trials, built in.

Learn more
Starter$29 / mo
Pro$99 / mo
Prorated today14 of 30 days left+$32.67

Plan changes

Upgrades and downgrades prorate to the day, with no math on your side.

Learn more
Subscription
Pro planActive
Oct 1TodayRenews Nov 1

Pause subscriptions

Let customers pause instead of cancel, and resume on the date they choose.

Learn more
Pro plan$99 / mo
Extra seats ×5+$25 / mo · prorated
Priority support+$49 / mo
Next invoice$124 / mo

Add-ons

Sell extra seats or support on top of any plan, prorated mid-cycle.

Learn more
INV-2026-0193Paid
Pro plan$99.00
Overage · 12 GB$2.40
Extra seats ×5$25.00
Total$126.40

Invoices

Every charge itemized on one invoice, from draft to paid, automatically.

Learn more

Keep the provider you already use

Stripe, Adyen, dLocal or Rebill. Plug in your account and Commet’s checkout charges through it, with no migration and no new payment stack.

Connect your provider

AAcme AI

Subscribe to Pro

$99.00per month

  • Video generations50 / month
  • Image generations500 / month
  • API calls1M included
  • Team seats5
  • Priority supportIncluded
Card
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Email
ana@acme.ai
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Frequently asked questions

Subscription billing built for developers and agents

Get startedBook a demo

Accept global payments, handle usage-based pricing, subscriptions, and seats — without building your own infrastructure.

Frameworks

  • Next.js
  • Remix
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  • FastAPI

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