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Agent Payment Claim Authorization Attestation: Verify Spender Authorization
x402
Agent Payment Claim Authorization Attestation: Verify Spender Authorization is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-20).
Returns a structured decision procedure for verifying x402 payment claim spender authorization — including policy, delegation, and budget cap checks — before honoring a payment claim, independent of settlement proof.
Price / call$0.002
Success—
StatusUnknown
How this service works
Paid agent-facing brief on agent payment claim authorization attestation: verify spender authorization (policy, delegation, budget cap) separately from settlement proof before honoring a received x402 payment claim · Build a decision procedure or schema for: agent payment claim authorization attestation: verify spender authorization (policy, delegation, budget cap) separately from settlement proof before honoring a received-0. Blunt decision procedure, not marketing.
Output
A paid LLM-generated decision procedure (prose and/or schema) detailing how an agent should verify spender authorization for a received x402 payment claim, covering: policy evaluation, delegation chain validation, budget cap checks, and how to perform these independently from settlement proof verification. Includes metadata such as generation source, model used, timestamp, and service slug.
Example use cases
Pre-settlement spender authorization gate
“I just received an x402 payment claim from an agent and need to verify the spender is authorized under the claimed delegation before I process it — walk me through the exact checks I should run on policy, delegation, and budget cap.”
Budget cap enforcement before claim acceptance
“An autonomous agent sent me a payment claim but I need to confirm their budget cap hasn't been exceeded and their delegation is valid — give me a clear decision procedure for this authorization check independently of the settlement proof.”
Multi-agent delegation chain verification
“I'm building a payment flow where sub-agents delegate spend authority, and I need a formal procedure to attest that a received x402 claim's spender has valid authorization through the delegation chain and is within policy limits before I honor it.”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/agent-payment-claim-authorization-attestation-ve?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs a concrete, blunt decision procedure specifically for verifying x402 payment claim spender authorization (policy, delegation, budget cap) as a separate gate from settlement proof — not for general x402 payment safety checks, merchant endpoint vetting, or rail selection. Choose this over generic payment validation resources when you need a structured, agent-consumable authorization attestation workflow.
Side effects
- Payment not made — endpoint returns 402 requiring $0.002 USDC before delivering the paid brief
- Missing or invalid query parameters result in default topic being used
- LLM generation failure may return ok:false in the result object
- Stale or cached generation may not reflect latest x402 protocol updates
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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