Conto

Budgets for paid API calls

Set spending limits per request and per session for API, inference, and compute usage.

Limits for API spending

Four rules stop runaway spend: per-call, session, provider, and velocity. A cheap call from a listed provider clears with no review step.

Per-call ceilings

A single API or inference request can't cost more than the cap you set for the task.

Session budgets

Give each task or agent run a hard budget so many small calls cannot add up to an unlimited bill.

Approved providers

Allow paid requests only to the providers or service types you choose.

Velocity monitoring

Limit repeated paid requests and retries within a set period.

Demo

No single call escapes the session budget

A buyer agent shops for inference call by call under a $5 per-call cap and a $25 session budget. A $9 call is refused, and so is the call that would push the session past $25.

Product example

Enchant runs on Conto budgets

Enchant pays for tools, data, and model calls per request over x402 and MPP, two pay-per-call protocols. Every user gets a Conto budget, and every paid step is checked against it first.

Visit Enchant at askenchant.com

Prompt

User asks Enchant

A task can require a paid tool, data source, or model call.

Quote

Price appears first

The paid step shows its cost before anything runs.

Control

Conto checks policy

Budgets, per-call caps, and approvals are evaluated before spend.

Payment

x402 or MPP clears

Approved micropayments settle and update the user budget.

Payment flow

x402 and MPP micropayments

Budget

Conto budgets for every user

Payment check

Policy before each paid request clears