ruc_py_validate $0.001 per call

Offline validator for a Paraguayan RUC (Registro Único de Contribuyentes): parses the base number (3-8 digits) and its hyphenated check digit, recomputes the check digit using the modulo-11 algorithm (cyclic weights 2-7 from the rightmost digit, sum mod 11, subtract from 11, mapping 10 and 11 to 0), and compares it to the supplied check digit.

For AI agents: call ruc_py_validate
POST https://toll402.dev/v1/t/ruc_py_validate
{
 "ruc": "80028098-2"
}
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": {
  "ruc": {
   "type": "string",
   "description": "RUC in format BASE-DV, e.g. 80028098-2",
   "pattern": "^[0-9]{3,8}-[0-9]$"
  }
 },
 "required": [
  "ruc"
 ],
 "additionalProperties": false
}

MCP

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

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