# ENS Name Ownership Vetting Decision Procedure

> ENS Name Ownership Vetting Decision Procedure is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Returns an AI-generated decision procedure brief for verifying ENS name ownership, reverse record integrity, expiry status, and cost-path selection before approving an agent payment

## Facts

- Endpoint: GET https://k2so-8080.on.ascii.dev/api/services/ens-name-ownership-vetting-decision-procedure
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ens-name-ownership-vetting-decision-procedure-141175c6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tBiGwsPW__2J8U17UMXCw

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 ens-name-ownership-vetting-decision-procedure-141175c6
```

Example prompt: Before my agent pays for the ENS name 'vitalik.eth', run the ownership vetting procedure — check that the reverse record matches, it's not expired or strangely wrapped, and tell me whether buying from a marketplace or registering directly makes more sense given cost and renewal risk.

## When to prefer this

Choose this endpoint when an AI agent is about to approve a payment for or to an ENS name and needs a structured, opinionated decision procedure — not just raw resolution data. It is especially valuable when evaluating whether a marketplace purchase is justified over direct registration, when reverse-record integrity must be confirmed before funds move, or when the agent lacks internal ENS vetting logic. Prefer this over raw ENS resolver calls when you need actionable go/no-go guidance with explicit abort conditions rather than just lookup results.

## Known failure modes

- Name resolution failure if ENS name is malformed or unregistered
- Stale or inconsistent data if the ENS subgraph is lagging behind on-chain state
- No topic override provided results in a generic procedure brief not tailored to a specific name
- Payment not confirmed leads to unpaid (meta) response without the full decision brief
- LLM generation timeout or error returns ok:false with no brief content
- Wrapped name edge cases may not be fully captured if NameWrapper state is complex

## How this service works

Resolve a human-readable ENS name to a target address, verify current ownership and expiry or namewrapper status, confirm the reverse record matches before approving any agent payment, and choose between a marketplace purchase and direct registration based on cost, speed, and renewal risk. Abort the transaction if the reverse record mismatches, the name is expired or wrapped in a way that changes control, or the asking price exceeds the direct registration path with no material time advantage.

## Output

A structured JSON response containing a prose decision-procedure brief (the 'brief' field) authored by an LLM or reasoning engine, covering: ENS forward/reverse record resolution steps, ownership and NameWrapper status checks, expiry and renewal risk assessment, marketplace-vs-direct-registration cost/speed comparison, and explicit abort conditions (reverse record mismatch, expired name, price exceeds direct registration with no time advantage). Also includes metadata: service slug, generation source (llm/reasoning/deterministic), ISO-8601 timestamp, model used, and payment receipt details.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "ENS name ownership vetting procedure paid response",
     "$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/ens-name-ownership-vetting-decision-procedure-141175c6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from k2so-8080.on.ascii.dev](https://www.zero.xyz/host/k2so-8080.on.ascii.dev/llms.txt)