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Rubric Protocol x402 Spend Statement
x402
Rubric Protocol x402 Spend Statement is a paid API for AI agents from rubric-protocol.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-13).
Generates a signed monthly x402 spend statement for a single agent, including payment totals, per-payment line items, and a Merkle root, returned as a signed ML document.
Price / call$0.5
Success—
StatusUnknown
How this service works
Signed monthly x402 spend statement for one agent: totals, per-payment lines, Merkle root. The statement is itself an ML
Output
A signed monthly statement document (itself an ML artifact) containing the agent's total x402 spend for the period, individual per-payment line items, and a Merkle root that allows independent verification of the statement's completeness and integrity.
Example use cases
Monthly agent billing audit
“Generate a signed x402 spend statement for my agent for last month — I need the total spend, each payment line, and the Merkle root so I can reconcile with our accounting records.”
Compliance attestation for agent payments
“I need an attested, Merkle-rooted payment statement for my AI agent covering this month's x402 transactions so I can submit it to our compliance team as proof of spend.”
Multi-party billing verification
“Produce a cryptographically signed monthly spend statement for my agent's x402 activity, including per-payment line items and the Merkle root, so the counterparty can independently verify what was charged.”
Technical details
Endpoint
POSThttps://rubric-protocol.com/v1/x402/statementWhen to prefer
Choose this endpoint when you need a cryptographically signed, Merkle-rooted monthly financial statement for a single AI agent's x402 payment activity — particularly for compliance reporting, cross-party billing verification, or auditable accounting records. Prefer it over generic payment logs when tamper-proof attestation and a structured ML document format are required.
Side effects
- No payment records found for the specified agent in the given period — returns empty or error response
- Invalid or missing agent identifier — 400 bad request
- Billing period out of range or malformed — 422 validation error
- Payment processing failure for the $0.5 USDC service fee — request rejected before statement is generated
- Internal signing or Merkle computation failure — 500 server error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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