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Agent402 UK Phone Number E.164 Normalizer
x402
Agent402 UK Phone Number E.164 Normalizer is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Normalizes a phone number string into E.164 international format with an optional default country code hint
Price / call$0.001
Success—
StatusUnknown
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 an 'e164' field containing the normalized phone number in E.164 format (e.g. '+447700900123') and a 'valid' boolean indicating whether the input was a recognizable phone number. Does not perform live HLR (Home Location Register) lookup or carrier validation.
Example use cases
Normalize user-submitted contact number
“A user just submitted their phone number as '(555) 867-5309' in a signup form — can you convert it to E.164 format using US country code 1 so I can store it properly?”
Standardize UK mobile before SMS dispatch
“Before I send an SMS, normalize this UK mobile number '07911 123456' to E.164 — the default country code should be 44.”
Clean international number from CSV import
“I'm importing contact data and have a phone entry '+49 30 12345678' — normalize it to E.164 so it's consistent with the rest of my dataset.”
Technical details
Endpoint
POSThttps://agent402.co.uk/v1/normalize/phoneWhen to prefer
Choose this endpoint when you need lightweight, cheap ($0.001) E.164 formatting of a phone number and do not require live carrier or HLR validation. It is ideal for pre-storage normalization, contact cleaning, and pre-SMS/call formatting pipelines. If you need to verify whether a number is actually active or assigned to a carrier, use an HLR lookup service instead.
Side effects
- Invalid or unparseable phone string returns valid:false with no e164 value
- Missing default_country_code for a local/national number may cause incorrect or failed normalization
- Non-string or empty phone field results in a 400-level error
- Ambiguous number with no country code hint may be normalized to wrong region
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| phone | string | Phone |
| default_country_code | string | e.g. 1, 44, 49 |
Output
Schema · Response
{
"type": "json",
"example": {
"e164": "+447700900123",
"valid": true
}
}Tags
x402
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