Bounded authority. Every agent action on the record.
A user signs the boundary once. Attesso authorizes every later action against it and signs the yes or the no. The execution rail remains yours.
Travel platforms
Book or rebook after the traveler leaves, within the exact route, cabin, date, and amount they approved.
- Rebook within the approved route, cabin, date, and total-price limits as inventory changes
- Hold hotel reservations to the property, stay dates, room, and nightly or total limits
- Return signed evidence of exactly which booking the traveler authorized
Procurement platforms
Release a supplier award or purchase order only against supplier and amount limits the approver already signed.
- One supplier award or purchase-order release, checked against signed limits
- Explicit supplier, item, quantity, currency, amount, and expiry constraints
- Fail closed whenever a boundary cannot be established
Invoice payments
Pay the exact invoice the approver signed: payee, amount to the cent, currency, and reference.
- One invoice, approved value for value: payee, amount, currency, and reference
- Any draft that differs, higher or lower, is refused
- Signed evidence of every decision, allowed or refused, verifiable independently
Payment and execution partners
Attach mandate enforcement and signed evidence to the credential, payment, or execution rail you already run.
- Bind each authorization to its execution on your rail, with a reference on both sides
- Settle each action with one outcome: accepted, or cancelled. Never both.
- Return signed, ordered finality evidence without moving money
AI and compute spend
Cap what an agent may spend on metered services, such as model APIs and managed databases, against one signed budget.
- Cap model API spend with a per-period budget the approver signs once
- Keep managed database and compute usage inside the same signed ceiling
- Return signed evidence of every charge against that budget
Use Attesso with your own card.
You are the only party. The rail is your own card, and your agent spends only within the bounds you approved, with proof.
A single workspace is all you need: create one, grab a free test key, and follow the guide. No merchant account or full PSP integration is required.
Read the guide- Personal use: your agent spends your own money within the bounds you approved, and every charge comes back signed.
- Solo developers: run a real card charge end-to-end without a merchant account or a full PSP integration.
Put one action on the record.
Bring the action, its execution rail, and its constraints. We will define the smallest honest pilot.