cpf_cnpj_validate $0.002 per call
Offline validator for Brazilian CPF (individual) and CNPJ (company) registration numbers. Strips formatting, checks length, rejects known invalid sequences (all same digit), and recomputes the official modulo-11 check digits for both formats.
For AI agents: call cpf_cnpj_validate
POST https://toll402.dev/v1/t/cpf_cnpj_validate
{}Answers 402 with x402 payment requirements; pay with any x402 client (@x402/fetch, x402 for Python, toll402-client, toll402-mcp) or send a prepaid-credits key as x-toll402-key (https://toll402.dev/credits). Paid per call via x402 (USDC on Base) or with a prepaid-credits key (x-toll402-key, card at /credits); charged only on success. Start at /llms.txt or connect the MCP server:
npx -y toll402-mcp · remote https://toll402.dev/mcp.Input schema
{
"type": "object",
"properties": {}
}
MCP
{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}