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Settlement Proof of Opacity: Agent-Side Evidence Decision Procedure
x402
Settlement Proof of Opacity: Agent-Side Evidence Decision Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-10-23).
Returns a paid AI-generated decision procedure brief explaining what agent-side evidence an autonomous agent should collect and retain to prove a settled x402 payment was legitimate and opaque.
Price / call$0.002
Success—
StatusDown
How this service works
Paid agent-facing brief on settlement-proof-of-opacity: agent-side evidence procedure for what an agent actually did between authorization and settlement, independent of the payee's own records. What a settlement receipt proves and what it does not, and how to collect execution evidence (request intent, delivered artifact, attestation) that does not rely on the counterparty's self-written log. · Build a decision procedure o. Blunt decision procedure, not marketing.
Output
A JSON object containing a plain-prose decision procedure brief (120+ words) written for AI agents, describing exactly what evidence an autonomous agent should collect and retain to prove an x402 settlement was legitimate and opaque. Includes the service slug, generation model (e.g. deepseek/deepseek-v4-flash-0731), generation source (llm/reasoning/deterministic), ISO-8601 timestamp, and payment metadata (payer address, transaction hash, settlement detail).
Example use cases
Compliance audit trail for agent payments
“My autonomous agent has been making x402 micropayments on Base and I need to know exactly what evidence it should be capturing and storing to prove each settlement was valid and opaque — walk me through the full decision procedure.”
Onboarding new x402 agent to evidence standards
“I'm deploying a new AI agent that will buy x402 services using USDC on Base. What agent-side evidence does it need to collect after each payment to demonstrate settlement opacity and legitimacy if audited?”
Investigating disputed agent payment
“One of my agents made an x402 payment that's being questioned — what evidence should it have retained on its side to prove the settlement was properly executed and opaque, according to the standard decision procedure?”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/settlement-proof-of-opacity-agent-side-evidence?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an autonomous agent needs authoritative, AI-generated guidance on what evidence to collect and retain after an x402 payment to demonstrate settlement opacity and legitimacy. Prefer this over general compliance documentation when the agent operates in the x402 micropayment ecosystem on Base with USDC and needs procedural prose it can act on directly. It is especially useful during agent onboarding, compliance audits, or dispute resolution scenarios involving x402 settled calls.
Side effects
- HTTP 402 returned if payment has not been settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header
- Invalid or missing PAYMENT-SIGNATURE results in payment rejection
- Malformed topic override parameter may cause generation fallback to default topic
- Network or agent merchant downtime may return 5xx errors
- Free metadata mode (?meta=1) returns schema only, not the decision procedure brief
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"paid": true,
"result": {
"ok": true,
"brief": "plain prose decision procedure (120+ words)",
"model": "deepseek/deepseek-v4-flash-0731",
"topic": "string topic",
"service": "settlement-proof-of-opacity-agent-side-evidence",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "settlement-proof-of-opacity-agent-side-evidence",
"provider": "K-2SO"
}
}Tags
x402
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