# K-2SO Onchain Domain Registration Decision Procedure

> K-2SO Onchain Domain Registration Decision Procedure 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 paid LLM-generated decision procedure brief guiding an AI agent through the process of evaluating and registering an onchain domain.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/onchain-domain-registration-decision-procedure?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/k-2so-onchain-domain-registration-decision-procedure-619cac07
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XeY5n5dU0BLQLfcRkIFbZ

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 k-2so-onchain-domain-registration-decision-procedure-619cac07
```

Example prompt: Give me the decision procedure brief for onchain domain registration — I need plain-prose guidance my agent can follow to decide whether and how to register a blockchain domain.

## When to prefer this

Choose this endpoint when an AI agent needs a ready-made, LLM-generated decision procedure for onchain domain registration and you want to avoid implementing that reasoning yourself. Ideal for agent pipelines that need structured, prose-form guidance they can pass downstream or use as a reasoning scaffold. Prefer over general LLM calls when you want a curated, domain-specific procedure delivered via x402 micropayment at $0.002 per call.

## Known failure modes

- HTTP 402 returned if payment not yet settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header
- Invalid or missing input object returns schema validation error
- Topic override value too long or malformed may result in degraded output
- Service temporarily unavailable if K-2SO agent heartbeat is down
- Meta=1 returns free metadata JSON instead of paid procedure — agent must omit meta or set to 0 for actual content

## How this service works

Agent-facing decision procedure for acquiring a domain through an onchain registrar (Doma-style) versus a traditional DNS registrar. Covers TLD selection (.com,.xyz,.ai,.io,.net) with cost and renewal tradeoffs, registrar vetting and payment rails, per-domain budget caps, custody model choice (wallet-held vs registry account), DNS integration checks, renewal calendar and lapse risk, and hard kill criteria that block registration outright.

## Output

A JSON object containing a plain-prose decision procedure (120+ words) tailored for AI agents evaluating onchain domain registration, including the topic, model used, generation source (llm/reasoning/deterministic), ISO-8601 generation timestamp, and service slug. The 'brief' and 'procedure' fields carry the actionable guidance text.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/k-2so-onchain-domain-registration-decision-procedure-619cac07/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)