The Termux:API add-on provides command line access to device API:s:

* Read and send sms messages from your terminal.
* Access device GPS location sensor from scripts.
* Pipe the result of commands into the device text-to-speech engine.
* Vibrate the device when something interesting happens.
* Access the system clipboard from shell scripts.
* List contacts from the system contact list.

Besides installing this app an additional package is required to install inside Termux:
$ apt install termux-api

See the following documentation about available API commands:
wiki.termux.com/wiki/Termux:API

NOTE: This is an add-on which requires that the main Termux app is installed to use.
From version Termux:API 0.34:
• Provide a default for --network (= "any") (#277).
All versions
August 7, 2019
May 30, 2019
March 19, 2019
February 5, 2019
January 10, 2019
September 28, 2018
September 6, 2018
June 24, 2018
June 15, 2018
June 9, 2018