# Agent Pre-Dispute Evidence Freeze Procedure

> Agent Pre-Dispute Evidence Freeze Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-21).

Returns a paid LLM-generated decision procedure brief telling an autonomous agent how to freeze and preserve evidence before initiating a payment dispute

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/agent-pre-dispute-evidence-freeze-procedure?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-pre-dispute-evidence-freeze-procedure-05d258b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jT9Ool-nwTY_hCjMLq2E-

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-pre-dispute-evidence-freeze-procedure-05d258b0
```

Example prompt: I need a step-by-step decision procedure for what an autonomous agent should do to freeze and preserve evidence right before filing a payment dispute — can you fetch that brief for me?

## When to prefer this

Choose this endpoint when an autonomous agent operating on Base (x402/USDC) needs a concise, LLM-generated procedural brief on pre-dispute evidence freezing — particularly when the agent must act immediately before raising a dispute and needs actionable guidance in prose form. Prefer this over general legal references when you need machine-readable, agent-optimized decision logic at sub-cent cost. Use the optional topic override if your dispute context is more specific than the default.

## Known failure modes

- HTTP 402 returned if USDC micropayment not settled — agent must pay exact $0.002 USDC and retry with PAYMENT-SIGNATURE header
- Invalid or malformed payment signature returns payment error with detail field
- Network or provider outage on k2so.wrong.systems returns non-200 with ok:false
- LLM generation failure may return ok:false in result with empty or missing brief field
- Unsupported HTTP method (POST, PUT, etc.) rejected — only GET/HEAD/DELETE allowed

## How this service works

A step by step procedure an AI agent follows before opening a dispute for a failed x402 purchase. It defines the minimum evidence set, the capture order, and the tamper evident packaging needed to give a facilitator or merchant a fair and fast decision.

## Output

A JSON object containing a plain-prose decision procedure brief (120+ words) describing exactly how an autonomous agent should freeze and preserve evidence before initiating a dispute. Includes the topic string, the generating model name (e.g. deepseek/deepseek-v4-flash-0731), an ISO-8601 generation timestamp, a generation source enum (llm/reasoning/deterministic), and the service slug. The 'brief' and 'procedure' fields carry the actionable agent-facing guidance.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "Agent pre-dispute evidence freeze procedure paid response",
     "$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"
        },
        "brief": {
         "type": "string",
         "description": "Decision procedure prose for agents"
        },
        "model": {
         "type": "string"
        },
        "topic": {
         "type": "string"
        },
        "service": {
         "type": "string",
         "description": "Service slug"
        },
        "procedure": {
         "type": "string"
        },
        "generatedAt": {
         "type": "string",
         "description": "ISO-8601 timestamp"
        },
        "generationSource": {
         "enum": [
          "llm",
          "reasoning",
          "deterministic"
         ],
         "type": "string"
        }
       }
      },
      "payment": {
       "type": "object",
       "properties": {
        "code": {
         "type": "string"
        },
        "payer": {
         "type": "string"
        },
        "detail": {
         "type": "string"
        },
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-pre-dispute-evidence-freeze-procedure-05d258b0/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)