bn_ca_validate $0.001 per call

Offline validator for a Canadian Business Number (BN9) and its extended BN15 form (BN9 + 2-letter program identifier + 4-digit reference number, e.g. 123456782RT0001). Verifies the 9-digit BN via the Luhn checksum algorithm and, if present, decodes the program identifier (RC=Corporate income tax, RT=GST/HST, RP=Payroll, RM=Import/Export, RR=Registered charity, and others) into a human-readable program type.

For AI agents: call bn_ca_validate
POST https://toll402.dev/v1/t/bn_ca_validate
{
 "value": "123456782RT0001"
}
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": "BN9 (9 digits) or BN15 (9 digits + 2-letter program id + 4-digit reference), e.g. 123456782RT0001"
  }
 },
 "required": [
  "value"
 ],
 "additionalProperties": false
}

MCP

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

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