# RESET Verifica – Brazilian CNPJ Validator

> RESET Verifica – Brazilian CNPJ Validator is a paid API for AI agents from api.resetparatodos.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Deterministically validates a Brazilian CNPJ (company taxpayer ID) by checking format and both mod-11 check digits, supporting both traditional numeric and the 2026 alphanumeric formats.

## Facts

- Endpoint: POST https://api.resetparatodos.com/x402/v1/brazil/cnpj/validate
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/reset-verifica-brazilian-cnpj-validator-1cf2d03e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-X5DsdCWpgJrSQb5ZCaoX

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 reset-verifica-brazilian-cnpj-validator-1cf2d03e -d '<json body>'
```

Example prompt: Can you validate this Brazilian CNPJ for me — 11.222.333/0001-81 — and tell me if the format and check digits are correct?

## When to prefer this

Choose this endpoint when you need fast, deterministic, offline-style structural validation of a Brazilian CNPJ — especially when you do not need live registry lookup and just want to confirm the number is correctly formed with valid check digits. It also handles the post-July-2026 alphanumeric CNPJ format, making it future-proof for new-format Brazilian company IDs.

## Known failure modes

- Invalid or malformed CNPJ string returns validation failure with reason
- CNPJ with incorrect check digits flagged as invalid
- Input shorter or longer than 14 alphanumeric characters rejected
- Non-alphanumeric characters that are disallowed cause format error
- Empty or missing cnpj field returns input validation error

## How this service works

Deterministically validate a Brazilian CNPJ (company taxpayer ID): format and both check digits (mod-11). Supports the traditional numeric format and the alphanumeric format in force since July 2026. Structural validation only.

## Output

Returns a structured JSON response indicating whether the CNPJ is valid, including whether the format is correct and whether both mod-11 check digits pass. May also indicate whether the CNPJ is in the traditional numeric or the new 2026 alphanumeric format.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "cnpj": {
   "type": "string",
   "description": "Brazilian CNPJ, 14 alphanumeric chars (numeric or 2026 alphanumeric)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/reset-verifica-brazilian-cnpj-validator-1cf2d03e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.resetparatodos.com](https://www.zero.xyz/host/api.resetparatodos.com/llms.txt)