# Brasil Dados API – Batch Payment Card Format Validator

> Brasil Dados API – Batch Payment Card Format Validator is a paid API for AI agents from brasil-dados-api.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Validates payment card numbers in batch for Luhn checksum compliance and brand identification (format-only, no live account lookup), returning a timestamped receipt.

## Facts

- Endpoint: GET https://brasil-dados-api.onrender.com/verify/card/batch
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/brasil-dados-api-batch-payment-card-format-validator-2b65371c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u3aQjeBSgnYhE_IE2NT8n

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 brasil-dados-api-batch-payment-card-format-validator-2b65371c
```

Example prompt: Can you validate these card numbers — 4111111111111111, 5500005555555552, and 378282246310005 — to check if they pass the Luhn check and tell me what brand each one is?

## When to prefer this

Use this endpoint when you need fast, offline-style format validation of one or more payment card numbers — confirming Luhn checksum correctness and brand detection — without triggering any live bank or payment network lookup. Ideal for pre-processing form submissions, data cleaning pipelines, or fraud screening where you only need structural validity and a timestamped audit receipt.

## Known failure modes

- Missing or empty input list of card numbers returns a 400 or validation error
- Non-numeric card number strings may cause parsing failures
- Very large batches may exceed request limits or time out
- Malformed request schema returns error without partial results
- Card numbers that are valid Luhn but unrecognized brand return unknown brand label

## How this service works

Validate up to 25 payment card numbers (Luhn + brand) in a single call. Format only, no account lookup. Cheaper per-item than individual requests.

## Output

Returns a batch validation result for each submitted card number, indicating whether it passes the Luhn checksum, the identified card brand (e.g. Visa, Mastercard, Amex), and a timestamped receipt confirming when the check was performed. No live account or bank lookup is performed.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/brasil-dados-api-batch-payment-card-format-validator-2b65371c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from brasil-dados-api.onrender.com](https://www.zero.xyz/host/brasil-dados-api.onrender.com/llms.txt)