# Agent-Comms-Inbox Verification Procedure – Decision Builder

> Agent-Comms-Inbox Verification Procedure – Decision Builder is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-10-31).

Returns a paid, LLM-generated decision procedure for verifying agent communications inboxes, including inputs, thresholds, and failure modes.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/agent-comms-inbox-verification-procedure-build-a?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-comms-inbox-verification-procedure-decision-builder-2e9ac588
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oKT_QKOwjJShHQ_Z-Cuaq

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-comms-inbox-verification-procedure-decision-builder-2e9ac588
```

Example prompt: Give me a blunt, structured decision procedure for verifying an agent communications inbox — include the inputs to check, thresholds to apply, and failure modes to handle.

## When to prefer this

Use this endpoint when you need a structured, blunt decision procedure for agent inbox verification and free documentation does not already cover the specific inputs, thresholds, and failure modes you need. Prefer it over generic LLM prompts when you want a curated, agent-optimized brief delivered via a paid, verifiable API call in the x402 ecosystem.

## Known failure modes

- Payment not received — returns 402 with payment instructions
- Free documentation already covers the decision adequately — falsifier condition means paid product may lack differentiation
- LLM generation failure — procedure field may be empty or error flagged in ok field
- Invalid topic override — may produce off-topic or generic procedure
- Network or provider error — ok: false in response envelope

## How this service works

Paid agent-facing brief on agent-comms-inbox verification procedure · Build a decision procedure or schema for: agent-comms-inbox verification procedure. Include inputs, thresholds, failure modes. Falsifier: If free docs already solve the decision, paid product fails.-0. Blunt decision procedure, not marketing.

## Output

A plain-prose decision procedure (120+ words) covering inputs to evaluate, thresholds to apply, and failure modes to handle for agent communications inbox verification. Includes metadata: generation source (llm/reasoning/deterministic), model name, topic, service slug, and ISO-8601 timestamp. Wrapped in a JSON envelope with ok, paid, provider, and payment fields.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "agent-comms-inbox verification procedure · Build a decision procedure paid response",
     "$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": {
         "
… (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": "agent-comms-inbox-verification-procedure-build-a",
   "procedure": "same as brief",
   "generatedAt": "2026-01-01T00:00:00.000Z",
   "generationSource": "deterministic"
  },
  "service": "agent-comms-inbox-verification-procedure-build-a",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-comms-inbox-verification-procedure-decision-builder-2e9ac588/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)