vat_za_validate $0.001 per call

Offline validator for a South African VAT registration number (SARS 10-digit tax reference number starting with 4). Strips spaces/dashes, checks length and leading digit, and verifies the standard Luhn (mod 10) check digit used by SARS.

For AI agents: call vat_za_validate
POST https://toll402.dev/v1/t/vat_za_validate
{
 "value": "4000000002"
}
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": "VAT number, e.g. 4000000002"
  }
 },
 "required": [
  "value"
 ]
}

MCP

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

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