Core

nodeos: The core service daemon that runs on every EOSIO node
cleos: A command line interface to interact with the blockchain and manage wallets
keosd: A key manager service daemon for storing private keys and signing digital messages
eosio.cdt: Contract Development Toolkit is a suite of tools used to build EOSIO contracts
eosio.contracts: Smart contracts that provide some of the basic functions of the EOSIO blockchain
eos-vm: EOS VM - A Low-Latency, High Performance and Extensible WebAssembly Engine