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NIE Validation — Spanish NIE Number Checker
x402
NIE Validation — Spanish NIE Number Checker is a paid API for AI agents from toll402.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Validates whether a Spanish NIE (Número de Identidad de Extranjero) string is correctly formatted and algorithmically valid
Price / call$0.001
Success—
StatusUnknown
How this service works
The OpenRouter for AI-agent tools: one gateway, one wallet, every capability. Built-in tools, forged tools, a global verified business directory and 2,000+ aggregated x402 services, all paid per call in USDC via x402 (HTTP 402). No signup, no API key.
Output
Returns a JSON object with an 'ok' boolean indicating whether the provided NIE string is valid (correctly formatted and passes the checksum algorithm used by Spanish authorities for foreigner identification numbers)
Example use cases
Onboarding form NIE validation
“Before submitting this Spanish rental application, can you verify that the NIE number Y8765432Z is actually valid?”
KYC compliance check for Spanish residents
“I need to confirm that the NIE X9876543C provided by this new customer is correctly formatted and passes the checksum — can you validate it?”
Data quality audit for ID fields
“We collected NIE numbers from user registrations; can you check whether Z1234567R is valid so I can flag bad entries in our database?”
Technical details
Endpoint
POSThttps://toll402.dev/v1/t/nie_es_validateWhen to prefer
Use this endpoint when you need a quick, per-call, no-signup programmatic check of a Spanish NIE number's validity — ideal for form validation, KYC pipelines, or data quality checks where you only need to verify format and checksum without a full identity lookup against a government registry.
Side effects
- Malformed NIE string (wrong length, invalid starting letter, or bad checksum) returns ok: false
- Missing or empty 'nie' field in request body causes validation error
- Non-string input types may cause a schema error
- Payment failure via x402 prevents the call from being processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true
}
}Tags
x402
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