PREPAID CREDITS FOR AI PRODUCTS

Charge actual AI usage.
Never lose track of a credit.

Reserve the maximum cost before an AI job, commit actual token usage afterward, and release the rest with an auditable receipt.

Loading persistent credit ledger…
Posted$0
Reserved$0
Available$0
01Grant / top-up
02Reserve maximum
03Execute AI job
04Commit actual
05Release remainder
06Usage receipt

Latest reservation

Maximum authorization before provider execution
{
  "status": "No reservation yet"
}

Latest usage receipt

Actual charge, released amount, and price line items
{
  "status": "No usage receipt yet"
}

Immutable ledger

0 entries · persisted in SQLite
[]

Transactional outbox

Events are stored atomically with balance changes
{
  "events": []
}

PRICE VERSION

Input and output tokens are rated separately.

{
  "status": "loading"
}

OPTIONAL FUNDING RAIL

Arc payments now fund credits. They no longer define the whole product.

The existing invoice, memo proof, receipt, signed webhook, and replay APIs remain compatible. Settlary uses them as the Arc Testnet funding adapter while the credit ledger stays payment-rail agnostic.

{
  "intents": [],
  "transactions": []
}