MAP Protocol is an open, fully decentralized, chain-to-chain interoperation protocol that enables the interoperability of multiple independently verifiable consensus blockchains without a relay chain. MAP Protocol expects to construct a future inter-chain-net, which is interoperable and chain-to-chain based. The ecosystem built on MAP Protocol can provide a solid infrastructure for DeFi, DEX, AI, IoT, traceability, and governance filed by cross-chain communication, privacy computation, shared storage, etc.