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K-2SO Deterministic Agent-to-Agent x402 Dispute Resolution Procedure
x402
K-2SO Deterministic Agent-to-Agent x402 Dispute Resolution Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-09-15).
Returns a deterministic decision procedure (prose brief) for autonomous agents resolving disputes in x402 agent-to-agent payment transactions
Price / call$0.002
Success—
StatusDown
How this service works
Deterministic dispute resolution for contested x402 settlements. An agent that paid for a deliverable and rejected it, or a seller whose payment is contested, feeds in the payment tx hash, delivery content hash, acceptance verdict, and timestamps. The procedure checks evidence completeness (missing evidence defaults to PAY-IF-DELIVERED-ELSE-REFUND within 24h), then runs a timed contestation ladder: direct reconcile at T+0, escrow quorum vote at T+1h requiring 60% agreement, neutral arbitration
Output
A JSON object containing a plain-prose decision procedure brief (120+ words) describing how an autonomous agent should handle x402 dispute contestation, along with metadata including the model used, generation source (deterministic/llm/reasoning), ISO-8601 timestamp, service slug, and provider name K-2SO.
Example use cases
Contested micropayment between two AI agents
“My buyer agent paid for an x402 API call but the seller agent says payment was never received — give me the procedure my agent should follow to contest and resolve that dispute.”
Building x402 dispute handling into an agent
“I'm coding an autonomous agent that buys x402 services on Base and I need a decision procedure it can follow whenever a payment dispute or contestation comes up — get me that brief.”
Auditing agent payment governance policy
“I want to review the standard dispute contestation procedure for agent-to-agent x402 transactions on Base so I can make sure my agent fleet's governance policy is aligned with it.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/deterministic-agent-to-agent-x402-dispute-resoluWhen to prefer
Choose this endpoint when an autonomous agent needs a ready-made, authoritative decision procedure for handling x402 payment disputes — particularly in agent-to-agent commerce on Base/USDC. Prefer it over building custom dispute logic when you want a deterministic, reusable procedure that conforms to x402 protocol norms. Especially useful when developing or auditing agent governance policies around contested payments.
Side effects
- HTTP 402 returned if payment not yet settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header
- Invalid or unsupported HTTP method returns an error (only GET/HEAD/DELETE allowed)
- Malformed query parameters may result in a failed handler response with ok: false
- Topic override not recognized may fall back to default dispute procedure topic
- Network or upstream LLM failure may result in generation errors
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": "deterministic-agent-to-agent-x402-dispute-resolu",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "deterministic-agent-to-agent-x402-dispute-resolu",
"provider": "K-2SO"
}
}Tags
x402
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