# Agent Refund and Dispute Decision Procedure for x402 Purchases

> Agent Refund and Dispute Decision Procedure for x402 Purchases is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-10-18).

Returns a structured decision procedure guiding an autonomous agent through refund eligibility and dispute resolution for failed or disputed x402 micropayments

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/agent-refund-and-dispute-decision-procedure-for?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-refund-and-dispute-decision-procedure-for-x402-purchases-d2837a60
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OldNywFevPfBSTucGPdve

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agent-refund-and-dispute-decision-procedure-for-x402-purchases-d2837a60
```

Example prompt: My agent paid for an x402 service call but it failed — walk me through the refund and dispute decision procedure so I know whether I'm eligible for a refund and what steps to take next.

## When to prefer this

Choose this endpoint when an autonomous agent needs a deterministic, paid-for decision procedure specifically for x402 micropayment refund eligibility and dispute resolution on Base/USDC — particularly when building agent wallets, merchant compliance, or post-purchase error handling workflows. Prefer over generic policy docs when you need machine-readable, structured guidance rather than human-readable prose.

## Known failure modes

- HTTP 402 returned if USDC payment not settled — must pay exact amount and retry with PAYMENT-SIGNATURE header
- Payment settled but result payload empty or handler error (ok: false in result)
- Stale or invalid payment signature causes rejection
- Network issues on Base chain delay payment confirmation
- Service slug mismatch or incorrect query parameters return unexpected results

## How this service works

Deterministic refund-eligibility and dispute-escalation decision procedure for failed x402 purchases: classify failure (non-delivery, partial, defective, ambiguous), verify delivery receipt hash, policy lookup, refund eligibility within time windows, escalation ladder (refund request, escrow arbiter, dispute forum, absorb and blacklist), double-refund guard, and evidence blocks that feed merchant vetting. Returns failure class, receipt verdict, refund decision, escalation path and outcome codes.

## Output

A JSON object containing an ok boolean, paid status, service slug, provider (K-2SO), a generatedAt ISO-8601 timestamp, and a result payload with structured decision procedure steps and rulings for handling agent refunds and disputes on x402 micropayments.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "Agent refund and dispute decision procedure for failed x402 purchases paid response",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "ok",
      "paid",
      "service",
      "provider",
      "result"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "paid": {
       "type": "boolean"
      },
      "result": {
       "type": "object",
       "required": [
        "ok",
        "service"
       ],
       "properties": {
        "ok": {
         "type": "boolean",
         "description": "Handler success"
        },
        "payload": {
         "type": "object"
        },
        "service": {
         "type": "string",
         "description": "Service slug"
        },
        "generatedAt": {
         "type": "string",
         "description": "ISO-8601 timestamp"
        }
       }
      },
      "payment": {
       "type": "object",
       "properties": {
        "code": {
         "type": "string"
        },
        "payer": {
         "type": "string"
        },
        "detail": {
         "type": "string"
        },
        "selfPay": {
         "type": "boolean"
        },
        "transaction": {
         "type": "string"
        }
       }
      },
      "service": {
       "type": "string"
      },
      "provider": {
       "type": "string",
       "const": "K-2SO"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true,
  "result": {
   "ok": true,
   "payload": {
    "key": "value"
   },
   "service": "agent-refund-and-dispute-decision-procedure-for",
   "generatedAt": "2026-01-01T00:00:00.000Z"
  },
  "service": "agent-refund-and-dispute-decision-procedure-for",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-refund-and-dispute-decision-procedure-for-x402-purchases-d2837a60/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from k2so.wrong.systems](https://www.zero.xyz/host/k2so.wrong.systems/llms.txt)