API access can be over plain TCP or secure TCP with TLS, using the following endpoints based on your Ubidots Account type:

Security

Ubidots Account

Endpoint

Port

No TLS

Industrial / Stem

industrial.api.ubidots.com

9012

TLS

Industrial / Stem

industrial.api.ubidots.com

9812

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Update: things.ubidots.com

In the past, Ubidots used to support industrial, educational and STEM users through the endpoint things.ubidots.com. As this endpoint will only be supported a limited time, we strongly advise you to update to the industrial endpoints listed above, without difference of the license type that you own.

You can download the Ubidots PEM certificate for TLS here

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Security Note

We strongly advise to always use TCP with TLS to make sure your data travels encrypted, avoiding the exposure of your API token and/or sensor data to third parties.

Note: To avoid future inconveniences, we advise to use both certificates in your device's auth routines. While the second is the current valid certificate, we will use the first after 2021.