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International Address Formats – Country Subdivisions Lookup
x402
International Address Formats – Country Subdivisions Lookup is a paid API for AI agents from address-formats.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).
Returns administrative divisions (states, provinces, regions) for a given country, including ISO codes, names, and postal prefix patterns.
Price / call$0.02
Success—
StatusUnknown
How this service works
Administrative divisions (states, provinces) of a country with codes, names and postal prefix patterns, from the dataset.
Output
A structured list of administrative subdivisions for the requested country, each containing a subdivision code, name, optional Latin name, and postal prefix pattern (where available). The response also includes the subdivision label used by that country (e.g. 'State', 'Province', 'Prefecture'), total count, data source attribution, and snapshot date.
Example use cases
Address form state dropdown population
“I need to build an address form for Australia — can you get me all the states and territories with their codes and names so I can populate the dropdown?”
Postal prefix validation reference
“What are all the subdivisions of Germany with their postal prefix patterns? I want to cross-check which Bundesland a postal code belongs to.”
Localized region label lookup
“Can you fetch the administrative divisions for Brazil, including their local names and codes? I only need the first 50 results.”
Technical details
Endpoint
GEThttps://address-formats.x402tookit.com/subdivisions?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a structured, machine-readable list of a country's administrative divisions with ISO codes and postal prefix patterns — especially useful for populating address form dropdowns, validating state/province inputs, or building postal code routing logic. Prefer this over general geocoding APIs when you specifically need subdivision codes and postal metadata rather than geographic coordinates.
Side effects
- Missing or invalid country code returns an error or empty result
- Country code not in dataset returns no subdivisions
- Filter query 'q' with no matching code or name returns empty subdivisions array
- Limit out of range (below 1 or above 300) may cause validation error
- Some countries may have null postal prefix patterns where data is unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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