# kr-cm-kg.ai Public Record Lookup

> kr-cm-kg.ai Public Record Lookup is a paid API for AI agents from kr-cm-kg.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Retrieves the public-record entry for a surface node, product, or estate-scale block from kr-cm-kg.ai, returning an EdDSA-signed receipt verifiable at a permanent URL.

## Facts

- Endpoint: GET https://kr-cm-kg.ai/api?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kr-cm-kg-ai-public-record-lookup-28ff89ec
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0ueSZ5R0F0f_oKjGX_3M7

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 kr-cm-kg-ai-public-record-lookup-28ff89ec
```

Example prompt: Fetch the public record for this market node on kr-cm-kg.ai and give me the EdDSA-signed receipt with the permanent resolution URL.

## When to prefer this

Use this endpoint when you need a cryptographically signed, permanently resolvable public-record lookup for a kr-cm-kg.ai surface node, product, or estate scale block. It is particularly suited for agentic workflows requiring tamper-proof receipts with EdDSA signatures and permanent receipt URLs. Prefer it over generic record lookups when the auditability and permanent verifiability of the result is important.

## Known failure modes

- Payment not completed — endpoint requires $0.01 USDC via x402 protocol before record is returned
- Invalid or unsupported HTTP method — only GET, HEAD, DELETE are accepted
- Node or surface not found — requested identifier does not correspond to a known record
- Signature verification failure — EdDSA receipt cannot be validated at the nonce URL
- Rate limiting or network error — transient failure requiring retry

## How this service works

One paid call on kr-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://kr-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

## Output

A public-record response containing the surface's entry (list_nodes line for market nodes, record of record for products, or estate scale block), accompanied by an EdDSA-signed receipt and a permanent resolution URL at https://kr-cm-kg.ai/x402/receipt/{nonce}.

## 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"
    }
   }
  },
  "output": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kr-cm-kg-ai-public-record-lookup-28ff89ec/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kr-cm-kg.ai](https://www.zero.xyz/host/kr-cm-kg.ai/llms.txt)