Barge is a shell script allowing you to run an Ocean network by orchestrating all [core components](/components) locally with Docker and Docker Compose.
Plecos is a Python tool to check metadata (a JSON file) to see if it conforms to the [OEP-8 schema](https://github.com/oceanprotocol/OEPs/tree/master/8). It wraps the [jsonschema](https://github.com/Julian/jsonschema) validator. Aquarius uses Plecos for checking metadata and other Ocean Protocol software will probably use it in the future.
The [Ocean Protocol Faucet Server](https://github.com/oceanprotocol/faucet) is a microservice that allows users to request Ether for a particular Ethereum network (e.g. the Nile Testnet). It is [deployed in multiple networks](/tutorials/get-ether-and-ocean-tokens/#get-ether), and started by default when using [Barge](#barge).
Submarine is based on [BlockScout](https://github.com/poanetwork/blockscout) (by [POA](https://poa.network/)), an open source blockchain explorer for EVM-based blockchain networks.
There is an [Ocean Protocol fork of BlockScout](https://github.com/oceanprotocol/blockscout). An instance is deployed in the Nile Testnet at [https://submarine.dev-ocean.com/](https://submarine.dev-ocean.com/).
The Ocean Token Bridge between the Ethereum Mainnet and the Pacific Network allows anyone with Ocean Tokens to move them from the Ethereum Mainnet to the Pacific Network.
There are a few Ocean Protocol command-line interfaces (CLIs). All of them were under development at the time of writing, so you may have issues with using them.
