---
title: Ecosystem
description: The Ocean Protocol network consists of various components. Learn about all of them here.
---

## Keeper-contracts

See also [Set Up a Keeper](/setup/keeper/)

-   [💧 keeper-contracts](https://github.com/oceanprotocol/keeper-contracts)

## Aquarius

Aquarius provides an off-chain database store for metadata about data assets. Every marketplace must run an instance of Aquarius.

-   [🐋 aquarius](https://github.com/oceanprotocol/aquarius)

## Brizo

Brizo is the technical component executed by Publishers allowing them to provide extended data services. Brizo, as part of the Publisher ecosystem, includes the credentials to interact with the infrastructure (initially cloud, but could be on-premise).

-   [brizo](https://github.com/oceanprotocol/brizo)

## Pleuston

An example marketplace front-end for consumers to explore, download, and publish data assets within the Ocean Protocol network. Implemented using React and squid-js.

-   [🦄 pleuston](https://github.com/oceanprotocol/pleuston)

## Squid

Client libraries used by applications to interact with Ocean nodes, including Keepers, Aquarius nodes, Brizo nodes, etc.

-   [🦑 squid-js](https://github.com/oceanprotocol/squid-js)
-   [🦑 squid-py](https://github.com/oceanprotocol/squid-py)
-   [🦑 squid-java](https://github.com/oceanprotocol/squid-java)