This part explains how you can use the JMAP API from 3rd party software.
First make sure the “API keys” module from the ‘Community’ package is installed at System settings -> modules.
Then visit System settings -> API Keys and add a token.
Obtain the token via the more menu and choose “View token”.
You can find some example PHP scripts to use the JMAP API here:
You can of course use any programming language with the JMAP API.