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Foundry Phone Number Validator
x402
Foundry Phone Number Validator is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Validates a phone number and returns its E.164 format, international format, type, region, carrier, and timezone.
Price / call$0.001
Success—
StatusUnknown
How this service works
Phone number validator: validity, E.164 and international format, type, region, carrier and timezone. Input: '+44 20 7946 0958'.
Output
A JSON object containing: whether the number is valid and possible, the E.164 formatted number, the international display format, the phone type (e.g. mobile, landline), the two-letter region code, the carrier (if available), the location (e.g. city or region), the country dial code, and a list of associated IANA timezones.
Example use cases
Pre-send SMS number check
“Before I send an SMS campaign, validate this number +1 415 555 0198 and tell me if it's a real mobile number and what carrier it's on.”
Normalize international phone entry
“A user entered '+49 30 12345678' in our signup form — can you validate it and give me the proper E.164 format and country so I can store it correctly?”
Unknown number region lookup
“I got a call from +61 2 9374 4000 and I'm not sure where it's from — can you tell me the country, region, and timezone for that number?”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/phone-validate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to validate, normalize, or enrich a single phone number — especially when you need E.164 formatting for storage, carrier identification before messaging, or timezone/region lookup tied to a phone number. Prefer this over generic regex validation when accurate type classification (mobile vs landline) or carrier data is required.
Side effects
- Invalid or missing phone number input returns valid: false and possible: false
- Numbers without a country code prefix and no region hint may fail to parse
- Carrier data may be null for some number ranges or countries
- Render cold-start may cause occasional latency spikes on first call
- Malformed input (non-numeric garbage) may return an error or invalid result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | A phone number with + country code, or 'number REGION' |
Output
Schema · Response
{
"type": "json",
"example": {
"e164": "+442079460958",
"type": "0",
"input": "+44 20 7946 0958",
"valid": true,
"region": "GB",
"carrier": null,
"location": "London",
"possible": true,
"timezones": [
"Europe/London"
],
"country_code": 44,
"international": "+44 20 7946 0958"
}
}Tags
x402
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