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Address Check
x402
Address Check is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Validates the structural format of a postal address (street, city, postal code, country) for common countries and returns a normalized single-line address plus any named structural issues.
Price / call$0.002
Success—
StatusUnknown
How this service works
Structural address check: country, street, city, and postal pattern for common countries (TR, US, GB, DE, FR, NL, …). Returns a normalised single-line form and named issues. Not proof of deliverability.
Output
Returns a normalized single-line form of the submitted address and a list of named structural issues (e.g. missing postal code, invalid postal pattern for the country, unrecognized city format). Does not confirm deliverability or physical existence — only structural/pattern validity.
Example use cases
E-commerce checkout address validation
“Before I save this shipping address to the order, check if it's structurally valid: 45 Baker Street, London, W1U 7BJ, GB.”
CRM data quality cleanup
“I have a German customer address — Musterstraße 12, Berlin, 10115, DE — can you validate its structure and give me a normalized single-line version?”
User registration form preflight check
“A user just entered this address on signup: Rue de Rivoli 55, Paris, 75001, FR — is the postal pattern and format correct for France?”
Technical details
Endpoint
GEThttps://402.com.tr/api/x402/address-checkWhen to prefer
Choose this endpoint when you need lightweight, fast structural validation of an address (correct country, plausible postal pattern, required fields present) before storage, display, or dispatch — especially for the supported countries (TR, US, GB, DE, FR, NL, and others). It is NOT a deliverability or geocoding check; prefer a geocoding or USPS/Royal Mail verification service if you need to confirm the address physically exists and can receive mail.
Side effects
- Missing required fields (country, line1, city) returns a validation error
- Unsupported country code returns an error or limited check
- Malformed postal code for the given country returns a named issue in the issues list
- Invalid ISO-2 country code causes an error response
- Network or payment authorization failure returns a 402 or connectivity error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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