# Carrier-Billing Dispute Timeline Decision Procedure

> Carrier-Billing Dispute Timeline Decision Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).

Returns an AI-generated decision procedure for reconstructing telco billing cycles, evidence retention schedules, and escalation timing when disputing carrier charges.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/carrier-billing-dispute-timeline-reconstruct-the?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/carrier-billing-dispute-timeline-decision-procedure-1664beeb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WfmKaotHsXqHb2frqcR4f

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 carrier-billing-dispute-timeline-decision-procedure-1664beeb
```

Example prompt: Walk me through how to figure out which billing cycle a suspicious telco charge landed in, what evidence I need to keep per cycle boundary, and when I should escalate my dispute based on the type of carrier involved.

## When to prefer this

Choose this endpoint when an agent or legal workflow needs a structured, blunt decision procedure — not marketing copy — for navigating carrier billing dispute timelines, specifically covering cycle reconstruction, evidence retention, and carrier-class-specific escalation. Prefer over generic legal or telecom databases when you need a machine-actionable procedure rather than raw regulatory text.

## Known failure modes

- Payment not included or insufficient — returns 402 with payment details required
- Invalid query parameters result in schema validation error
- LLM backend unavailable causing generation failure or empty brief
- Topic override results in out-of-scope or low-quality procedure
- Deterministic fallback may return cached/stale procedure instead of freshly generated content

## How this service works

Paid agent-facing brief on carrier-billing dispute timeline: reconstruct the billing cycle a telco charge landed in, evidence retention schedule per cycle boundary, and escalation timing per carrier class · Build a decision procedure or schema for: carrier-billing dispute timeline: reconstruct the billing cycle a telco charge landed in, evidence retention schedule per cycle boundary, and escalation timing per carrier class.-0. Blunt decision procedure, not marketing.

## Output

A plain-prose decision procedure (120+ words) covering: how to reconstruct which billing cycle a telco charge landed in, the evidence retention schedule keyed to cycle boundaries, and escalation timing differentiated by carrier class. Returns JSON with fields including 'brief', 'procedure', 'topic', 'model', 'generatedAt', and 'generationSource' (llm/reasoning/deterministic).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "carrier-billing dispute timeline: reconstruct the billing cycle a telc paid response",
     "$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": {
         
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "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": "carrier-billing-dispute-timeline-reconstruct-the",
   "procedure": "same as brief",
   "generatedAt": "2026-01-01T00:00:00.000Z",
   "generationSource": "deterministic"
  },
  "service": "carrier-billing-dispute-timeline-reconstruct-the",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carrier-billing-dispute-timeline-decision-procedure-1664beeb/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)