Developers can use AllThingsTalk RESTful API to access and modify resources. It is currently being used by the Maker website and mobile applications, and developers are welcome to use it for their own projects.
View RESTful API Reference documentation
Messaging clients (those that implement publish-subscribe messaging pattern) can send sensor data to the cloud or listen for incoming actuation data.
You can choose between these two messaging protocols:
Read more about Messaging API