# Aggregator

The Aggregator keeps a unique set of market IDs across multiple Tellers and Auctioneers. 

Additionally, it aggregates market data from multiple Auctioneers in convenient view functions. The main idea is that the Aggregator is a single point for information within the system about available markets. 

This contract can therefore be used by users, front-ends, and other contracts to find and obtain information about any market.  

<figure><img src="/files/MXtWoJV4foNlqjOUa9CZ" alt=""><figcaption></figcaption></figure>


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