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Agent402 Country Code Validator
x402
Agent402 Country Code Validator is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).
Validates and normalizes ISO alpha-2 country codes, including common non-standard aliases like 'UK' to 'GB'.
Price / call$0.001
Success—
StatusDown
How this service works
Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.
Output
Returns a JSON object with the normalized ISO alpha-2 code (e.g. 'GB'), the original code echoed back, and a boolean 'known_common' flag indicating whether the input was a recognized common alias (like 'UK') rather than a strict ISO code.
Example use cases
Geo-routing pre-check for payments
“I'm about to call a geo-routed payment API and the user entered 'UK' as their country — can you validate and normalize that to the correct ISO alpha-2 code first?”
Form input sanitization for country field
“A user submitted 'UK' in the country field of our checkout form — validate it and convert it to the proper ISO alpha-2 code before we process the order.”
Compliance check before international transfer
“I need to send money internationally and want to confirm that the destination country code 'GB' is a valid ISO alpha-2 code before I proceed.”
Technical details
Endpoint
POSThttps://agent402.co.uk/v1/validate/country-codeWhen to prefer
Use this endpoint when you need to ensure a country code is ISO alpha-2 compliant before passing it to geo-routed tools, payment processors, or localization APIs — especially when user input may contain common non-standard codes like 'UK' instead of 'GB'. Prefer this over doing a lookup table locally when you want a maintained, authoritative allowlist including common aliases.
Side effects
- Invalid or unrecognized country code string returns an error or null result
- Empty input or missing 'code' field may return a validation error
- Codes longer than 2 characters that are not known aliases may be rejected
- Payment failure (HTTP 402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| code | string | ISO alpha-2 |
Output
Schema · Response
{
"type": "json",
"example": {
"code": "GB",
"iso_alpha2": "GB",
"known_common": true
}
}Tags
x402
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