StablePhone

https://stablephone.dev/api/call

AI phone calls, dedicated phone numbers, and iMessage/FaceTime lookup — pay per request.

60
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

100.0% avg
0% 50% 100% Jul 23Aug 2Aug 11Aug 21

Response time

p50 169ms · p95 291ms
0ms 200ms 400ms Jul 23Aug 2Aug 11Aug 21
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
7/23/2026, 12:00:00 AM 100% 1 145ms
7/24/2026, 12:00:00 AM 100% 1 138ms
7/25/2026, 12:00:00 AM 100% 1 134ms
7/26/2026, 12:00:00 AM 100% 1 134ms
7/27/2026, 12:00:00 AM 100% 1 144ms
7/28/2026, 12:00:00 AM 100% 1 182ms
7/29/2026, 12:00:00 AM 100% 1 145ms
7/30/2026, 12:00:00 AM 100% 1 177ms
7/31/2026, 12:00:00 AM 100% 1 116ms
8/1/2026, 12:00:00 AM 100% 1 148ms
8/2/2026, 12:00:00 AM 100% 1 322ms
8/3/2026, 12:00:00 AM 100% 1 189ms
8/4/2026, 12:00:00 AM 100% 1 190ms
8/5/2026, 12:00:00 AM 100% 1 170ms
8/6/2026, 12:00:00 AM 100% 1 174ms
8/7/2026, 12:00:00 AM 100% 1 172ms
8/8/2026, 12:00:00 AM 100% 1 111ms
8/9/2026, 12:00:00 AM 100% 1 166ms
8/10/2026, 12:00:00 AM 100% 1 152ms
8/11/2026, 12:00:00 AM 100% 1 297ms
8/12/2026, 12:00:00 AM 100% 1 197ms
8/13/2026, 12:00:00 AM 100% 1 152ms
8/14/2026, 12:00:00 AM 100% 1 198ms
8/15/2026, 12:00:00 AM 100% 1 120ms
8/16/2026, 12:00:00 AM 100% 1 139ms
8/17/2026, 12:00:00 AM 100% 1 110ms
8/18/2026, 12:00:00 AM 100% 1 132ms
8/19/2026, 12:00:00 AM 100% 21 165ms
8/20/2026, 12:00:00 AM 100% 20 156ms
8/21/2026, 12:00:00 AM 100% 5 222ms
60
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

How often it was reachable when we probed it (weight 35%).

Latency
100

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
not yet measured

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USD
Networks
tempo
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
Name.com, Inc.
Domain registered
2026-02-17
Hosting network
VERCEL-09
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

phonecallvoiceai-callimessage
Response schema 
{
  "additionalProperties": false,
  "properties": {
    "call_id": {
      "type": "string"
    },
    "message": {
      "type": "string"
    },
    "success": {
      "const": true,
      "type": "boolean"
    }
  },
  "required": [
    "success",
    "call_id",
    "message"
  ],
  "type": "object"
}