Metered billing
A manifest flag, not a sprint
Declare billing.enabledand a price in your app manifest. Usage events, credit math, refund-on-failure, idempotency, and settlement are the platform's job — your code just does the work it charges for.
For AI SaaS builders
Your AI app costs money per call. Make it earn per call.
Every request your AI app serves burns API spend. Semesh gives you metered billing, per-user credit wallets, and end-user payments when payment rails are available — so users pay for what they use, without you writing a line of billing code.
End-user-pays
Delegated billing when available
When enabled by the live server, signed-in users can spend from their own Aev balance, including model calls the app makes on their behalf. A quote is not a charge or settlement result.
Transparent costs
Quotes before you spend
Everything is cost-plus with a published markup. Ask for a quote before an expensive job, read every charge back from the ledger, and cap blast radius with per-app allowances.
From code to a paid product
npm i -g semesh
semesh login
# manifest: stack.billing.enabled = true, price in Aev
semesh deploy # live server/preflight decides login, database, and billing availabilityFAQ
How do I charge users for AI usage without building billing?
Deploy on Semesh with billing declared in the manifest. When the live server enables delegated billing, signed-in users can pay per use from their Aev balance; otherwise keep the payment path unavailable. Read quotes, delivery status, and the ledger before claiming a charge or settlement.
FAQ
What does building metered billing yourself actually involve?
Usage events, aggregation, credit balances, funding flows, refund-on-failure, idempotency, and reconciliation are separate responsibilities. A manifest flag declares intent; live server/preflight availability and readback decide what can actually run.
FAQ
Who pays for the model API calls my app makes?
With end-user-pays, the signed-in user's balance funds the calls your app makes on their behalf — your margin no longer disappears into API bills for free riders.