What you need
- Multimeter for macOS 13 or later, $19.99 once.
- Nothing.
Set it up
- Add a Web Address meter with the address and the key path
price:Web addresshttps://api.gold-api.com/price/XAU - Refresh every 5 minutes.
Multimeter settings
In Customize This Meter… (from the meter’s menu):
| Setting | Value |
|---|---|
| Source | Web Address |
| Web address | https://api.gold-api.com/price/XAU |
| Key path | price |
| Refresh every | 5 minutes |
| Label | GOLD |
| Face | LCD Readout, Nixie Tubes or Sparkline |
Tested: Run on October 29, 2026: gold 4,021.30 and silver 52.55 USD per ounce.
More on this source, including every format it reads, in the Web Address guide.
Variations
Silver, platinum, palladium
Use XAG, XPT or XPD in place of XAU.
Troubleshooting
| Symptom | Cause | Fix |
|---|---|---|
| No number found in the response | The key path doesn’t match the reply. | Run curl -s with the address and read the JSON. Dots walk into objects, numbers pick array items (items.0.count). |
| Couldn’t reach the address | No network, a typo in the host, or the service is down. | Open the address in your browser. Multimeter tries again at the next refresh. |
Questions
Can it notify me when the price crosses a level?
Yes. In Customize This Meter, set alerts to High values (or Low values for a drop) with your level as critical, and turn on Notify me when it goes critical. Notifications repeat at most every 15 minutes.