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CertainData Country Lookup
x402
CertainData Country Lookup is a paid API for AI agents from api.certaindata.ai, paid per call via x402, $0.007/call, status unknown (last checked 2026-09-15).
Look up a country by name, ISO code, or calling code and return standardized metadata including ISO codes, capital, region, subregion, and calling codes.
Price / call$0.007
Success—
StatusUnknown
How this service works
Look up a country by name, ISO code, or calling code. Returns ISO codes, official name, capital, region, subregion, and calling codes.
Output
Returns structured country metadata including ISO alpha-2 and alpha-3 codes, official country name, capital city, region (e.g. Europe), subregion (e.g. Western Europe), and international calling codes (e.g. +49).
Example use cases
Validate customer addresses during signup
“I'm processing customer registrations and need to validate that the country codes people enter are real. Can you look up each one and confirm the official country name and capital so I know the data is correct?”
Build international shipping cost calculator
“We're setting up shipping rates by region, so I need you to look up which countries belong to Europe, Asia, and other regions. For each country a customer selects, tell me its subregion so we can apply the right shipping tier.”
Resolve phone numbers to customer location
“I have a bunch of customer phone numbers with different calling codes like +33, +44, and +81. Can you figure out which country each one is from and give me the official country name and region so I can route their support to the right team?”
Technical details
Endpoint
GEThttps://api.certaindata.ai/ca054d66abad4d6ea80ba43013b61743-cd/country-lookup/:inputWhen to prefer
Use this endpoint when you need to resolve a country identifier (name, ISO code, or dialing code) into standardized country metadata such as ISO codes, capital, region, or subregion. Ideal for data enrichment pipelines, form validation, or any scenario requiring canonical country information from a flexible input format.
Side effects
- Invalid or unrecognized country name, ISO code, or calling code returns an error or empty result
- Ambiguous input (e.g. partial name) may not resolve to a country
- Misspelled country names may not match
- Non-standard or deprecated ISO codes may not be recognized
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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