Show your API response time on your iPhone

Short answer: send your API response time to WidgetDash with one HTTP request, then add the WidgetDash widget to your iPhone Home Screen or Lock Screen. It updates every time you push a new value, and it is free for up to 5 numbers.

Latency is the part of reliability your users feel most, so a creeping p95 should not hide in a graph you only open after a complaint. Push your p50 and p95 from the same monitoring that already computes them. The widget gives you a constant, honest read on how fast your service feels.

Push it with one request

A source is created automatically the first time you push to it, so there is no setup step. Send your API response time like this:

curl -X PUT https://api.widgetdash.app/api/v1/data/api_latency \
  -H "Authorization: Bearer YOUR_WRITE_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "display_name": "API Latency",
    "icon": "speedometer",
    "category": "DevOps",
    "metrics": [
      { "label": "p95", "value": "184 ms" },
      { "label": "p50", "value": "61 ms" }
    ]
  }'

• The value is a plain string, so format it however reads best: "$8,420", "99.98%", "+58".
• icon is an SF Symbol name. Here we use speedometer.
• Push to the same source_key again any time and the widget updates in place.

Add it to your iPhone

1. Sign up free and copy your WRITE key from the dashboard.
2. Install the WidgetDash iOS app (free on the App Store) and connect with the dashboard QR code or your READ key.
3. Long-press the Home Screen, tap +, search WidgetDash, pick a size, then choose this source.

Small Lock Screen widgets are supported too, so your API response time can sit right under the clock.

Questions

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