Toll402 · Business directory · Tools · llms.txt · MCP

nino_validate $0.001 per call

Offline validator for a UK National Insurance Number (NINO). Normalizes input (strips spaces/dashes, uppercases) and checks the LL999999L pattern: two letters, six digits, one suffix letter (A-D). Rejects first letter D,F,I,Q,U,V; second letter D,F,I,Q,U,V,O; and reserved prefixes BG,GB,NK,KN,TN,NT,ZZ.

For AI agents: call nino_validate
POST https://toll402.dev/v1/t/nino_validate
{
 "value": "AB 12 34 56 C"
}
Answers 402 with x402 payment requirements; pay with any x402 client (@x402/fetch, x402 for Python, toll402-client, toll402-mcp). Free trial without a wallet; paid calls via x402 (USDC on Base). 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": "NINO string, e.g. 'AB123456C' or 'AB 12 34 56 C'"
  }
 },
 "required": [
  "value"
 ],
 "additionalProperties": false
}

MCP

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

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Toll402 is a pay-per-call tool gateway for AI agents (x402, USDC on Base, no API keys). Data aggregates dated public evidence; "unverified" means unknown, not fake. Referral bounty · Get listed