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StablePhone iMessage/FaceTime Lookup
phonecallvoiceai-callimessageai
StablePhone iMessage/FaceTime Lookup is a paid API for AI agents from StablePhone at stablephone.dev, paid per call via MPP or x402, $0.05/call, status unknown (last checked 2026-10-10).
Check whether a US phone number is registered for iMessage or FaceTime, returning a polling token for async results.
Price / call$0.05
Success—
StatusUnknown
How this service works
Check if a phone number has iMessage/FaceTime ($0.05 via x402). Returns a token to poll for async results.
Output
Returns a JSON object containing a single `token` string (a JWT) that the caller must use to poll the separate Status endpoint for the actual iMessage/FaceTime lookup result. The token encodes the request ID, phone number, and expiry.
Example use cases
Example prompt
“Can you check if +12125551234 has iMessage or FaceTime enabled?”
Technical details
Endpoint
POSThttps://stablephone.dev/api/lookup?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to determine whether a specific US phone number supports iMessage or FaceTime before deciding on a communication channel. It is the only endpoint to use for Apple messaging capability detection in the StablePhone ecosystem. Prefer this over manual outreach or SMS-fallback guesswork when building communication automation pipelines.
Side effects
- Invalid phone number format (must be E.164 US format +1XXXXXXXXXX) returns a validation error
- Payment not completed or insufficient USDC balance returns 402 Payment Required
- Phone number outside US (+1) format is rejected by schema validation
- Token expiry — the returned JWT has a limited validity window; polling must happen before expiry
- Network timeout on async lookup if carrier or Apple registry is slow to respond
Input
{
"phone_number": "+12025551234"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| phone_numberrequired | string |
Output
{
"token": "eyJhbGciOiJIUzI1NiJ9.eyJyaWQiOiI1MDY4MmNhZi1hNTg5LTQwNGYtODM2Ni05MDRkMDdhNjJkOTUiLCJwaCI6IisxMjAyNTU1MTIzNCIsInciOiIweDljYzQyZjNkOTI0NWI4NjdhY2NjZDYzMGI0M2Y5MDZjMTY2NWIxNzYiLCJpYXQiOjE3ODA4OTEyMjksImV4cCI6MTc4MDg5NDgyOX0.ZBbmtra9nrrbVtzJzQ7oDLsEsYLEVkPgoiW0gn-FPUc"
}Schema · Response
| Field | Type | Description |
|---|---|---|
| tokenrequired | string |
Tags
phonecallvoiceai-callimessageaisocial
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