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Compare · Billing platforms

Limitr vs Metronome.

Metronome invoices usage at enormous scale, after it happens. Limitr decides it as it happens: the call that would break a budget or a contract never runs.

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The short answer
Metronome

Usage-based billing at very high volume, a Stripe product since January 2026.

Limitr

Decides every call in your app, with prices, costs, limits, and contract terms, then bills it.

Side by side

What happens when…

The moments that decide it, answered from each product's own docs and pricing.

When…MetronomeLimitr
An agent loop runs away at 2 a.m.Alerts are checked every few minutes and sent as webhooks. Your app acts after the calls ran.The call that would break the budget never runs. Task, customer, and org budgets are checked in your app first.
A customer costs more than they payBills revenue. We found no per-customer cost or margin view.Margin per account is live, and a cap on what an account can cost you stops it before it turns unprofitable.
Sales signs a custom dealDeep: commits, credits, drawdown, and contract edits, applied to the invoice.Write it as a contract in Limitr Cloud. Its prices, limits, and terms are enforced in the product on the next call.
You change a priceRate cards and contract edits, with forecasting.Replay the change on real usage, with revenue and cost, then publish. Live on the next call.
How it’s pricedCustom plans, sold through Stripe.Free to build. $49 a month plus usage when live. Never a share of your revenue.

Checked November 10, 2026. Sources: Stripe completes Metronome acquisition · Metronome alerts · Stripe Billing pricing. Something out of date? Tell us.

Architecture

Where the decision happens.

The difference most comparisons skip: where a call is allowed, priced, and capped, and when.

Metronome
After the call

Usage is recorded and billed after it happens. Your app acts on alerts and webhooks, once the calls have already run.

Your app
no check first
Model or APIthe cost
afterward
Billing servicerecords it
Limitr
Inside your app, before the call

The engine runs natively in your process and decides every call in about a millisecond: allowed, priced at your cost and your price, and held to the contract. Usage goes to Limitr Cloud in the background.

Your appLimitr engine inside
decided first
Model or APIthe cost
in the background
Limitr Cloudledger and invoices

Proof

Don't take our word for it.

Bring last month's usage. We'll replay it through Limitr Analyst and show your margin per account, and what Limitr would have stopped.

100,000+users metered for The Regis Company's Fortune 500 contract971 of 1,000attack calls stopped inside the app in our abuse demo, on a real policy0network calls to decide a request. It keeps deciding when the network doesn't.Apache 2.0Read exactly what decides your calls.
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The gap

What you'd still build on Metronome.

Teams pair Metronome with code of their own. With Limitr, that part is the product.

With Metronome, you still build
With Limitr, you get
Enforcement in your app, ahead of any webhook
Budgets and limits checked in your app before the call
Cost per call and margin per account
Your cost and your price on every call, so margin per account is live
A price-change replay with your costs in it
Replays of a price change with revenue and cost

Choose Metronome if invoicing billions of events against enterprise contracts is the core problem.

Switching

From Metronome to Limitr.

No migration day. Limitr runs next to what you have until the numbers match.

Book a replayMap your pricing
Map your Metronome plans and prices to a Limitr policy, line by line.
Run Limitr in observe mode next to Metronome and compare the numbers on real traffic.
Switch enforcement on. Customers come over as they appear, with no migration day.

Common questions

Limitr vs Metronome, answered.

Yes. Stripe completed its acquisition of Metronome on January 14, 2026, and now sells advanced usage-based billing as Metronome.

If the problem is invoicing billions of events against enterprise contracts, Metronome is built for it. If you need each call allowed, priced, and capped in your app with margin in view, that is Limitr.

Metronome invoices usage at enormous scale, after it happens. Limitr decides it as it happens: the call that would break a budget or a contract never runs. Choose Metronome if invoicing billions of events against enterprise contracts is the core problem.

Metronome: after the call. Usage is recorded and billed after it happens. Your app acts on alerts and webhooks, once the calls have already run. Limitr: inside your app, before the call. The engine runs natively in your process and decides every call in about a millisecond: allowed, priced at your cost and your price, and held to the contract. Usage goes to Limitr Cloud in the background.

Map your Metronome plans and prices to a Limitr policy, line by line. Run Limitr in observe mode next to Metronome and compare the numbers on real traffic. Switch enforcement on. Customers come over as they appear, with no migration day.

Metronome: Custom plans, sold through Stripe. Limitr: Free to build. $49 a month plus usage when live. Never a share of your revenue.

Limitr is built for them. An agent is a customer like any other, with its own plan, limits, and budget, linked to the workspace it works for. Budgets per task, customer, and org are checked in your app before each step runs, and the agent can see what it has left as a Claude tool.

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