API (application-programming interface) is a set of programming instructions for accessing information in a web application. In other words, API allows two separate apps to share information with each other.
For example, MailerLite uses API to receive and send data between MailerLite and Shopify when users install the Shopify integration.
MailerLite users can access our API documentation in order to build their own integrations, or choose from over 100 pre-developed integrations and install them using an API key.
To find the MailerLite API key and API documentation:
Head to the Integrations page, which you can find on the lefthand sidebar.
Click the Use button under MailerLite API.
On the Developer API page, you will find all the information you need regarding API, including:
The MailerLite API token - Unique to each account, it is used to connect your MailerLite account with another integration.
MailerLite JSON API - Provides access to our API documentation for all the information available for developing your own integration.