dic_cz_validate $0.001 per call

Offline validator for a Czech DIČ (VAT/tax ID): normalizes input, strips spaces/dashes, checks for 'CZ' prefix, then validates the remaining digits either as an 8-digit IČO (mod-11 checksum with weights 8..2 on the first 7 digits) or as a 9-10 digit rodné číslo (birth number, valid month 01-12/21-32/51-62/71-82, and for 10-digit numbers the full number must be divisible by 11).

For AI agents: call dic_cz_validate
POST https://toll402.dev/v1/t/dic_cz_validate
{
 "dic": "CZ12345679"
}
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": {
  "dic": {
   "type": "string",
   "description": "Czech DIČ, e.g. CZ12345679 or CZ900101/0007"
  }
 },
 "required": [
  "dic"
 ]
}

MCP

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

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