Base is a protocol foundation firm that base is an ethereum layer 2 network incubated by coinbase and launched to mainnet on 9 august 2023. it is an optimistic rollup built on the op stack in collaboration with optimism, and it uses eth as its gas token with no separate network token. base batches transactions and settles to ethereum for security, offering low fees and full evm compatibility. it has grown into one of the most active layer 2s by transactions and total value locked. in 2025 base introduced the b20 token standard, letting developers issue stablecoins, tokenized real-world assets and equities without custom contracts. base is created and led by jesse pollak. They serve clients in United States. Base is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/base.