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agentsvc.io Phone Number Validator
x402
agentsvc.io Phone Number Validator is a paid API for AI agents from agentsvc.io, paid per call via x402, $0.0045/call, status unknown (last checked 2026-10-10).
Validates and normalizes a phone number, returning its line type, country, and multiple formatted representations
Price / call$0.0045
Success—
StatusUnknown
How this service works
86 APIs for AI agents: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search and more, paid per call with USDC on Base, Solana, Polygon or Arbitrum via x402. No account, no API key, free sample on every service.
Output
A JSON object containing: the E.164 normalized number, formatted phone string, national format, international format, country calling code, ISO country code, line type (e.g. MOBILE, LANDLINE), and boolean validity and possibility flags.
Example use cases
User registration phone verification
“Before we save this user's profile, can you validate the phone number they entered — '015123456789' — assuming they're in Germany? I want to know if it's valid, what type of line it is, and get the E.164 format for our database.”
CRM contact data cleanup
“I have a phone number from our CRM: '0049 151 23456789'. Can you validate it and give me the properly formatted international and national versions so we can standardize our records?”
Lead qualification by phone type
“We got a lead with phone number '+12025551234'. Can you tell me if it's a valid number and whether it's a mobile or landline? We only want to SMS mobile leads.”
Technical details
Endpoint
POSThttps://agentsvc.io/api/v1/proxy/phone-validate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to validate, normalize, or classify a phone number without requiring a full SMS verification loop. It is ideal for pre-submission validation of user-entered phone numbers, CRM data cleansing, or routing logic based on line type. Prefer this over SMS-based verification when you only need format and line-type checks, not proof of ownership. Pay-per-call USDC pricing via x402 means no account setup is needed.
Side effects
- Invalid or unparseable phone number format returns is_valid: false
- Missing country code for a national number without + prefix may cause parsing failure or incorrect country assignment
- Unsupported country codes may result in limited validation accuracy
- Malformed input (non-numeric characters, empty string) may return an error or invalid result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| phone | string | Phone number to validate. Can be in any format: E.164 ('+4915123456789'), national ('015123456789'), or international ('0049 151 23456789'). Include country code (+ prefix) for best results. |
| country_code | string | ISO 3166-1 alpha-2 country code hint for parsing national numbers without country prefix (e.g. 'DE' for Germany, 'US' for United States). Optional if number includes country code (+...). |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"e164": "+4915123456789",
"phone": "+49 151 23456789",
"checks": {
"is_valid": true,
"is_possible": true
},
"is_valid": true,
"line_type": "MOBILE",
"country_code": "DE",
"national_format": "0151 23456789",
"country_calling_code": "49",
"international_format": "+49 151 23456789"
},
"success": true
}
}Tags
x402
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