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x402 Unhappy Path Dispute Adjudication Decision Procedure
x402
x402 Unhappy Path Dispute Adjudication 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 2026-10-13).
Returns a structured decision procedure for agents navigating a contested x402 payment dispute that survived proof exchange, covering dispute classification, escalation thresholds, evidence ordering, and verdict recording.
Price / call$0.002
Success—
StatusDown
How this service works
Decision procedure for an agent facing a contested x402 payment dispute that survived proof exchange. Classifies the dispute (proof-failure, intent-failure, performance-failure), sets the escalation threshold in dispute value vs adjudication cost, frames a single binary question for the adjudicator, specifies the evidence bundle order, and records the verdict into merchant reputation and cumulative spend ledgers. Blunt, executable, not marketing.
Output
A structured prose decision procedure ('brief') covering: dispute type classification (proof-failure, intent-failure, or performance-failure), the escalation threshold formula comparing dispute value to adjudication cost, a single binary question framed for the adjudicator, the prescribed order for the evidence bundle, and instructions for recording the verdict into merchant reputation and cumulative spend ledgers. Also includes service metadata, generation timestamp, and generation source (llm/reasoning/deterministic).
Example use cases
Classify a performance-failure dispute
“I paid an x402 merchant $0.50 USDC for a delivered service but the output was clearly wrong — the proof exchange didn't resolve it. Walk me through the decision procedure: what type of dispute is this, should I escalate given the dispute value vs adjudication cost, and how do I frame a single binary question for the adjudicator?”
Decide escalation threshold for small disputed charge
“My agent got into a payment dispute with an x402 merchant over a $0.01 USDC charge and proof exchange failed. What's the escalation threshold — is the dispute value even worth the adjudication cost, and if not, what should I record in the merchant's reputation ledger?”
Build evidence bundle for intent-failure adjudication
“I need to escalate an x402 intent-failure dispute to an adjudicator — the merchant claims they fulfilled the intent but I have evidence they didn't. Give me the correct order for my evidence bundle and the exact binary question I should frame for the adjudicator.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/agent-x402-unhappy-path-dispute-adjudication-dec?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent is operating within the x402 payment protocol and has reached a contested dispute state that proof exchange alone could not resolve. It is specifically designed for the post-proof-exchange escalation phase, not for initial payment flows or simple refund requests. Prefer it over generic dispute guidance when you need executable, agent-specific decision logic that produces a binary adjudicator question, a ranked evidence bundle, and ledger update instructions in a single call.
Side effects
- Payment not received — returns 402 requiring $0.002 USDC payment before content is delivered
- Invalid or missing method parameter — returns validation error
- Topic override not recognized — procedure may fall back to default x402 dispute framing
- Service unavailable on k2so.wrong.systems — returns HTTP 5xx with no procedure content
- Stale or cached procedure — generatedAt timestamp may reveal outdated guidance if LLM reasoning is not fresh
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": "agent-x402-unhappy-path-dispute-adjudication-dec",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "agent-x402-unhappy-path-dispute-adjudication-dec",
"provider": "K-2SO"
}
}Tags
x402
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