Where is the best place to get API calls of what happens to an account?

Question

Is there a blockchain explorer like blockchain.info that lets me access an API to do a query if something happens to an account? I want to get a json response of all transactions of an account. Say if I wanted to detect if an unstake transaction happened, I can write a script for this.

Answer 1

EOSTracker is a block explorer that stores actions for users and also provides an API.

Answer 2

You can use the get_actions filter on a Websocket connection and keep that running, and trigger things on your side with the https://dfuse.io API.