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Phone Number Validation & Type Classification
x402
Phone Number Validation & Type Classification is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0216/call, status unknown (last checked 2026-10-11, last successful call 2026-05-01).
Validates a phone number, normalizes it to E.164 format, and classifies it as mobile, landline, or VOIP with country and carrier details.
Price / call$0.0216
Success33%
StatusUnknown
How this service works
Validate a phone number and classify its type. Returns E.164 format, country, carrier name, and whether it is mobile, landline, or VOIP. Covers 200+ countries.
Output
Returns the phone number in E.164 format, the country it belongs to, the carrier name, and the line type classification (mobile, landline, or VOIP). Covers numbers from 200+ countries.
Example use cases
Example prompt
“Can you validate this phone number +14155552671 and tell me whether it's mobile, landline, or VOIP, and which carrier and country it belongs to?”
Technical details
Endpoint
GEThttps://api.strale.io/x402/phone-validate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to validate a user-submitted phone number, normalize it to E.164, or determine whether a number is mobile, landline, or VOIP for routing or fraud-prevention decisions. Covers 200+ countries, making it suitable for international use cases.
Side effects
- Invalid or unparseable phone number returns an error
- Unrecognized number format with no country code hint may fail to parse
- Some VOIP or newer carrier numbers may have incomplete carrier data
- Rate limiting or payment failure returns HTTP 402
Input
{
"country_code": "US",
"phone_number": "+14155552671"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| country_code | string | ISO 2-letter country code hint (optional) |
| phone_numberrequired | string | Phone number in any format |
Output
{
"e164": "+14155552671",
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.0216,
"settlement_id": "0x1897ff60ecdc52936d5188c715beaaa028eff5f88bc81b5ad3a31091524ba823"
},
"capability": "phone-validate",
"latency_ms": 1,
"provenance": {
"source": "libphonenumber-js",
"fetched_at": "2026-06-13T04:26:04.292Z"
}
},
"input": "+14155552671",
"valid": true,
"carrier": null,
"phone_type": "FIXED_LINE_OR_MOBILE",
"is_possible": true,
"country_code": "US",
"country_name": "United States",
"national_format": "(415) 555-2671",
"international_format": "+1 415 555 2671"
}Schema · Response
{
"e164": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"phone_type": {
"type": "string"
},
"is_possible": {
"type": "boolean"
},
"country_code": {
"type": "string"
},
"national_format": {
"type": "string"
},
"international_format": {
"type": "string"
}
}Tags
x402
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