# SupremeAI Latin American Tax-ID Batch Validator

> SupremeAI Latin American Tax-ID Batch Validator is a paid API for AI agents from agents.supremeai.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Validates Latin American tax IDs (CNPJ, CUIT, RUT, RFC, and others) in batch via checksum verification, returning validity, normalized form, and ID type for each entry.

## Facts

- Endpoint: POST https://agents.supremeai.ca/v1/validate/batch?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/supremeai-latin-american-tax-id-batch-validator-ae5bdd24
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tPkoiMqPhOjnrpKYW1VG7

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 supremeai-latin-american-tax-id-batch-validator-ae5bdd24 -d '<json body>'
```

Example prompt: Can you validate these three tax IDs for me: Brazilian CNPJ 11.222.333/0001-81, Argentine CUIT 20-12345678-1, and Chilean RUT 12.345.678-9? I need to know which ones pass the checksum.

## When to prefer this

Choose this endpoint when you need to verify the mathematical/checksum validity of Latin American tax IDs (Brazil CNPJ, Argentina CUIT, Chile RUT, Mexico RFC, Peru, Paraguay) without needing a full government registry lookup. It excels at batch processing multiple IDs in one pay-per-call request, is keyless (no account setup), and costs a flat $0.01 USDC per call regardless of batch size. Prefer it over full KYC services when you only need format/checksum validation as a first-pass filter before more expensive registry checks.

## Known failure modes

- Unsupported country code returns an error or unrecognized result for that item
- Malformed or empty id field may return valid:false with a descriptive reason
- Network or payment failure (402 / x402 protocol) prevents the call from completing
- Batch array is empty or missing, causing a request validation error
- ID that passes checksum format but is not officially registered still returns valid:true — this endpoint only checks the checksum algorithm, not a government registry

## How this service works

Pay-per-call tools for AI agents: x402 pre-flight checks (is this endpoint safe to pay?), web pages as clean markdown (with optional JavaScript rendering), Latin American tax-ID validation, npm/PyPI/GitHub lookups, and URL health checks. No API keys, no accounts — pay per request in USDC.

## Output

Returns a JSON object with a count field and a results array. Each result includes the original ID, the country code, a result object containing a valid boolean, a reason string (empty on success, descriptive on failure), the country code in uppercase, the id_type (e.g. CNPJ, CUIT, RUT, RFC), and a normalized string representation of the ID without punctuation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "items": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "country",
     "id"
    ],
    "properties": {
     "id": {
      "type": "string",
      "description": "tax ID to validate; punctuation tolerated"
     },
     "country": {
      "type": "string",
      "description": "ID selector: br|cnpj, ar|cuit, cl|rut, pe, py, mx|rfc"
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 1,
  "results": [
   {
    "id": "11.222.333/0001-81",
    "result": {
     "valid": true,
     "reason": "",
     "country": "BR",
     "id_type": "CNPJ",
     "normalized": "11222333000181"
    },
    "country": "br"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/supremeai-latin-american-tax-id-batch-validator-ae5bdd24/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.supremeai.ca](https://www.zero.xyz/host/agents.supremeai.ca/llms.txt)