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SCVD Settlement Reconciliation
x402
SCVD Settlement Reconciliation is a paid API for AI agents from scvd.store, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-15).
Returns a signed JSON observation reconciling USDC transferred in a Base transaction against the spending cap in force, with a verdict and evidence hash bound into a purchase certificate.
Price / call$0.006
Success—
StatusUnknown
How this service works
Settlement Reconciliation. A signed JSON observation of one Base transaction reconciling two numbers — the USDC that moved and the ceiling in force — with cap_source and cap_observed naming where the ceiling came from and whether we saw it ourselves. Verdicts: within_cap, over_cap, no_discretion (EIP-3009, where the value was fixed in the payer's signed digest), cap_not_observable, or no_settlement. Evidence hash bound into the purchase certificate, plus a stable URL serving…
Output
A signed JSON settlement observation containing: a verdict (within_cap, over_cap, no_discretion, cap_not_observable, or no_settlement), the USDC amount moved, the cap ceiling and its source, an evidence hash, a cert_id with permanent verify URL, a patron badge URL, and the full signed deliverable text — all wrapped in a purchase certificate with date, item, and patron number.
Example use cases
Post-payment cap compliance audit
“I just made a USDC payment on Base with tx hash 0xabc123... — can you check whether the amount transferred was within the spending cap that was in force and give me a signed record of the verdict?”
EIP-3009 fixed-value confirmation
“This transaction 0xdef456... was an EIP-3009 authorization — verify that the value was fixed in the payer's signed digest and get me a certificate confirming the no_discretion verdict with a permanent URL I can share.”
Agent expenditure certificate for audit trail
“Run a settlement reconciliation on Base tx 0x789abc... from payer 0xPayer... to recipient 0xRecipient..., name the certificate 'BillingAgent', and return the signed certificate with the badge and verify URL so I have a tamper-evident record.”
Technical details
Endpoint
GEThttps://scvd.store/api/buy/settlement_reconciliationWhen to prefer
Use this endpoint when you need a cryptographically signed, third-party observation of whether a specific Base transaction's USDC movement was within a declared or on-chain spending cap — particularly when you need a tamper-evident artifact with a permanent URL for audit trails, compliance records, or dispute resolution in x402-based agentic payment flows.
Side effects
- Invalid or malformed tx_hash (not matching ^0x[0-9a-fA-F]{64}$) returns a validation error
- Transaction not found on Base network returns no_settlement verdict
- Cap cannot be determined from chain data returns cap_not_observable verdict
- Payment for the API call itself fails (x402 protocol error) blocks the request
- Payer or recipient filter doesn't match any transfer in the transaction returns no_settlement
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"item_id": "settlement_reconciliation",
"message": "Pleasure doing business. Here's your goods, warm off the shelf.",
"tip_usdc": 0,
"badge_url": "https://scvd.store/badges/41.svg",
"paid_usdc": 0.006,
"signature": "<128 hex chars, ed25519>",
"verify_url": "https://scvd.store/api/verify/cert_k2m9v4xwqp",
"certificate": {
"date": "2026-07-22T15:04:05.000Z",
"item": "settlement_reconciliation",
"cert_id": "cert_k2m9v4xwqp",
"patron_number": 41
},
"deliverable": "<the Settlement Reconciliation itself, as text>",
"patron_number": 41
}
}Tags
x402
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