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description: Welcome to Send Finance documentation
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# Overview

### Send Finance is a zkBridge

[Send Finance](https://send.finance/transfer) is a zkBridge for interchain token transfer. We want to apply the zero-knowledge bridge architecture to solve the chains' interoperability problems.&#x20;

Send Finance aims to create a seamless, faster, and safer token transfer process based on a reliable mechanism design, facilitating liquidity providers' higher APY. We are looking forward to your participation in supplying liquidity in pools.

#### Trustless and Secure

Send Finance as a zkBridge is trustless and secure. \
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Send Finance enables users to send tokens between chains by zkBridge API provided by Way Network.

The figure below shows the workflow of zkBridge:



<figure><img src="https://2393012144-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNPupOdTMSiB7oYH37Dgx%2Fuploads%2F0jk9cIoMzQ1Eq9SONPHT%2F%E6%88%AA%E5%B1%8F2023-02-08%2012.45.30.png?alt=media&#x26;token=0e33964b-30f5-4c81-b9f8-070bffc7a481" alt=""><figcaption><p>zkBridge</p></figcaption></figure>

#### Completeness and Soundness&#x20;

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We present zkBridge to enable an efficient cross-chain bridge without trusting a centralized committee. The completeness and soundness of Way Network zkSpark ensure the safety of zkBridge. Therefore, we do not need any trusted third party to transmit, prove and verify cross-chain information, but through pure cryptography and mathematics to guarantee its legitimacy. \


<figure><img src="https://2393012144-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNPupOdTMSiB7oYH37Dgx%2Fuploads%2FBs71W4HuGxymABbnUmnB%2F%E6%88%AA%E5%B1%8F2023-02-07%2022.44.28.png?alt=media&#x26;token=ebbc6ada-8a00-426e-8950-2fb963425778" alt=""><figcaption><p>zkSpark Sum-check Protocol</p></figcaption></figure>

