Telemetry for your Devices
Free, libre, open source telemetry for your devices. No installation or configuration required.
Top Devices Today
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How to Use
Add your telemetry measures to the body as a simple key-value JSON:
{"height": 5, "name": "my-rover", "takenAt": "2025-06-07T19:02:57Z"}
Send your measures to the API endpoint:
POST https://avistel.es/devices/[deviceId]/measures
Try it out with this simple Unix command:
$ curl -d '{"value": 75}' -H "Content-Type: application/json" https://avistel.es/devices/web-test-device/measures
Where web-test-device will be the device identifier. That's it! Your telemetry will be collected for your later use.
Using UDP
To avoid tying up your device with complex HTTPS requests, you can also send a UDP package to the 4215 port on the avistel.es server. In this case you should include the device identifier in the JSON:
$ echo '{"device": "udp-test-device", "value": 76}' | nc -4u -q 1 avistel.es 4215
You can also store remote configurations and much more, please take a look at the complete API.
Compliance
This site does not track you in any way. We keep a visit counter using LibreCounter.org, which is fully GDPR-compliant.
Any device information sent to avistel.es is stored in our server, and displayed publicly to anyone with the curiosity to find it. Never send any personally-identifying information. If you have sensitive data please set up your own server and use it instead, it is quite straightforward!