# zkBob

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zkBob is an open-source, decentralized application available for the community.[ Learn More.](https://docs.zkbob.com/zkbob-overview/basic-concepts/open-source-and-decentralized)&#x20;
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## Get Started

> :man: [zkBob App](https://app.zkbob.com/)\
> :man\_swimming: [Info and Instructions](https://docs.zkbob.com/zkbob-app/zkbob-app)\
> :person\_running:[Technical Details & Contracts](https://docs.zkbob.com/implementation)\
> 🔐 [Security Audit](https://docs.zkbob.com/resources/security-audit)<br>

## About

[zkBob](https://app.zkbob.com) is a stablecoin-based privacy application deployed on Polygon and Optimism and designed for everyday users and [common use cases](https://docs.zkbob.com/zkbob-overview/basic-concepts/use-cases). zkBob uses [zkSNARKS](https://docs.zkbob.com/implementation/zksnarks-and-circuits) to anonymize senders, receivers, and amounts when transferring stable funds. [Compliance features](https://docs.zkbob.com/zkbob-overview/compliance-and-security) deter bad actors and illicit usage, giving privacy and safety back to ordinary blockchain users.

zkBob now supports multiple tokens, **including USDC on Polygon, USDC and ETH on Optimism and USDT on Tron**. Once tokens are deposited into the zkBob pool, participants can transfer any amount\* amongst themselves in a private, secure manner without needing to connect MetaMask, WalletConnect or any web3 wallet.

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When a transfer is initiated, the amount and recipient is never disclosed or published. Transactions are routed through a [relayer](https://docs.zkbob.com/implementation/relayer-node), abstracting gas fees while providing an efficient transfer environment.&#x20;

Deposits, transfers and withdrawals are all processed on the chain where the app is deployed, with standardized gas fees ($0.10 per tx on MATIC, variable on Optimism) paid using the supported token.

* The [zkBob application](https://app.zkbob.com/) is multichain (**Polygon, Optimism, Tron**) to utilize existing infrastructure (Uniswap v3, Aave, and native USDC), prioritize scalability, and support their commitment to zk-based solutions.

*\*zkBob introduces* [*deposit and withdrawal limits*](https://docs.zkbob.com/zkbob-overview/deposit-and-withdrawal-limits) *and other* [*compliance features*](https://docs.zkbob.com/zkbob-overview/compliance-and-security) *to keep the application and its users safe. Transfers are limited by these pool constraints.*&#x20;

## Project Landing Pages

* zkBob application: <https://zkbob.com/>
* Private payment links: <https://zkbob.com/payment-link>
*

## Newsletter & Blog

[Sign up for the zkBob Blog](https://blog.zkbob.com/) to receive the latest updates about zkBob.