# About Waves.Exchange Matcher
Matcher is the service that executes orders on Waves.Exchange according to the matching algorithm explained in the Waves.Exchange Protocol article.
You can install Matcher and customize it for your own custom exchange to earn fees for the services it provides. For details see the following articles:
Matcher exposes REST API for accessing order book and submitting orders. This allows implementing tools such as trading UI or trading bots. For details see Matcher API article.