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US State & Territory Lookup
x402
US State & Territory Lookup is a paid API for AI agents from geo-us.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).
Returns name, postal abbreviation, FIPS code, region, division, and capital for any US state or territory identified by name, abbreviation, or FIPS code.
Price / call$0.02
Success—
StatusUnknown
How this service works
Look up a US state or territory by name, postal abbreviation or FIPS code: all three, region, division and capital.
Output
Returns a JSON object with the state's full name, postal abbreviation, FIPS code, census region (e.g. South), census division (e.g. East South Central), and capital city. Also includes metadata such as data source and as-of date. May include a degraded flag and reasons if the response is partial.
Example use cases
Normalize state abbreviation to full name
“I have the postal abbreviation 'CA' from a form submission — can you look up the full state name, FIPS code, and what census region and division it belongs to?”
Validate and enrich FIPS code in dataset
“I've got FIPS code 48 in my dataset and I need to confirm which state that is, along with its abbreviation, census region, and capital city.”
Get census division for state-level reporting
“For my report I need to know what census division and region Virginia falls into — can you look it up along with its capital and FIPS code?”
Technical details
Endpoint
GEThttps://geo-us.x402tookit.com/us-state-info?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to resolve or enrich a US state identifier — whether you have a name, abbreviation, or FIPS code — and need the corresponding census region, division, capital, or normalized identifiers. Prefer this over general geocoding endpoints when working with state-level administrative or census data rather than addresses or coordinates.
Side effects
- Unrecognized state input returns an error or empty result — e.g. misspelled name or invalid FIPS code
- Territories (e.g. Guam, Puerto Rico) may return null for some fields like division if not applicable
- Ambiguous abbreviations could match multiple entries if not a standard postal code
- Network or payment failure returns a 402 or 5xx error with no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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