# ca-cm-kg.ai Public Record Lookup

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

Retrieves the public record for a surface node or entity on ca-cm-kg.ai and returns an EdDSA-signed receipt for the lookup

## Facts

- Endpoint: GET https://ca-cm-kg.ai/api?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ca-cm-kg-ai-public-record-lookup-2d9de204
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LzemiceqLG-0kTNj-VjXn

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 ca-cm-kg-ai-public-record-lookup-2d9de204
```

Example prompt: Fetch the public record for this market node on ca-cm-kg.ai and give me back the signed receipt with the nonce so I can verify it later.

## When to prefer this

Use this endpoint when you need a cryptographically verifiable, permanently resolvable public record lookup for nodes, products, or estate blocks on the ca-cm-kg.ai agentic marketplace. It is especially appropriate when auditability and proof of retrieval (via EdDSA-signed receipt) are required, and when operating in an x402 micropayment-enabled agentic workflow.

## Known failure modes

- Invalid or missing 'type' field (must be 'http') returns a validation error
- Unsupported HTTP method (only GET, HEAD, DELETE allowed) returns a 405 or validation error
- Payment not received or USDC transaction failed results in 402 Payment Required
- Node or record not found returns a 404 error
- Receipt nonce resolution failure if the receipt URL is not yet indexed

## How this service works

One paid call on ca-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://ca-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

## Output

Returns the public record for the requested surface node or entity (market node list_nodes entry, product record, or estate block), along with an EdDSA-signed receipt containing a nonce and a permanently resolvable receipt URL at https://ca-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/ca-cm-kg-ai-public-record-lookup-2d9de204/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ca-cm-kg.ai](https://www.zero.xyz/host/ca-cm-kg.ai/llms.txt)