nif_pt_validate $0.001 per call

Offline validator for a Portuguese NIF/NIPC (Número de Identificação Fiscal / Pessoa Coletiva): checks 9-digit format, classifies entity type from the first digit, and verifies the mod-11 check digit (weights 9-2 on digits 1-8, remainder rule for digit 9). No network access.

For AI agents: call nif_pt_validate
POST https://toll402.dev/v1/t/nif_pt_validate
{
 "nif": "501442600"
}
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": {
  "nif": {
   "type": "string",
   "description": "Portuguese NIF/NIPC, digits only or with spaces/dots"
  }
 },
 "required": [
  "nif"
 ]
}

MCP

{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}

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