# Point to ETH network

*A bridge or interchain bridge is a service (centralized or decentralized) that allows you to create a connection between two blockchains that cannot normally communicate with each other, so that tokens can be transferred between them.*

*This is a utility that has become essential thanks to the arrival of DeFi services, which have taken the crypto community a big leap in the use of blockchain technology and the tokens that make life on the different blockchains capable of providing this type of service.*

#### *How does a bridge work?*

*A bridge can be thought of as a simple information exchanger between blockchains. In other words, the main function of a bridge is to allow the bidirectional exchange of information between blockchain A and blockchain B, through a protocol that allows this connection. Of course this is an easy way to see how a bridge works, but the basic idea is this, and having this very clear will help you understand exactly how this exchange of information happens.*

***In fact, we can summarize it in four steps:***

* *The bridge is located between the A and B chain, creating the basic structure for it to function.*
* *If you want to pass a token From A > B, you go to the bridge, indicate the number of tokens you want to exchange at A, and provide the destination address at B.*
* *You make the shipment in A and the bridge locks that balance in a vault, and then in B the exact amount of tokens is minted and sent to the address in B that you provided.*
* *The tokens in A are blocked as collateral for the tokens in B and you can only get them back by doing the reverse process.*

#### EYE-AI and its bridge

*We will have a bridge that allows transactions between two networks eth and bsc.*