vat_sa_validate $0.001 per call

Offline structural validator for a Saudi Arabia ZATCA VAT registration number: normalizes input by stripping spaces/dashes, checks it is exactly 15 digits, and verifies it starts and ends with '3' (the Saudi GCC country code / tax-type marker), matching the documented 15-digit serial+check+subsidiary+taxtype structure. No live check-digit algorithm is publicly documented, so only format validity is confirmed.

For AI agents: call vat_sa_validate
POST https://toll402.dev/v1/t/vat_sa_validate
{
 "value": "300000000000003"
}
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": {
  "value": {
   "type": "string",
   "description": "Saudi VAT number, e.g. 300000000000003"
  }
 },
 "required": [
  "value"
 ],
 "additionalProperties": false
}

MCP

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

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