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Strale Phone Type Detection
x402
Strale Phone Type Detection is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0216/call, status unknown (last checked 2026-09-13).
Detects the type of a phone number (mobile, landline, VoIP, etc.) given a phone number and optional country code hint
Price / call$0.0216
Success—
StatusUnknown
How this service works
The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.
Output
Returns a classification of the phone number's line type (e.g. mobile, landline, VoIP, toll-free, premium), along with carrier information, country of origin, and an audit record with a cryptographic chain hash for provenance verification.
Example use cases
SMS campaign eligibility check
“Before we send out our SMS marketing blast, can you check if +44 7911 123456 is actually a mobile number or something else that can't receive texts?”
Fraud detection for sign-up flow
“A user just registered with +33 6 12 34 56 78 — can you tell me if that's a real mobile number or a VoIP line that might indicate a fake account?”
CRM contact data enrichment
“I have a customer contact with phone number +49 30 12345678 in Germany — can you figure out whether it's a mobile, landline, or VoIP so I can tag it correctly in our CRM?”
Technical details
Endpoint
GEThttps://api.strale.io/x402/v2/phone-type-detectWhen to prefer
Choose this endpoint when you need reliable, auditable phone number type classification across 27+ countries with cryptographic audit trails. Ideal for fraud detection pipelines, SMS deliverability checks, and CRM enrichment workflows where you need confidence that the line type determination is independently tested and tamper-evident. Prefer over generic phone validation APIs when you need carrier-level detail and a trust layer suitable for compliance or regulated use cases.
Side effects
- Invalid or unparseable phone number format returns an error
- Country code hint does not match the number's actual country
- Phone number is unallocated or not found in any carrier database
- Rate limit exceeded for the API key or x402 payment account
- Insufficient USDC balance to complete the micropayment transaction
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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