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https://github.com/mushroomlabs/hub20

Self-hosted payment gateway for Ethereum and any ERC20 token, integrates with Raiden for almost-zero fees.
https://github.com/mushroomlabs/hub20

ethereum payment-gateway payments

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Self-hosted payment gateway for Ethereum and any ERC20 token, integrates with Raiden for almost-zero fees.

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README 

        
## Welcome to Hub20



Hub20 is an early stage open source, self-hosted online payment

solution that can be considered as the Ethereum equivalent of

[BTCPayServer](https://btcpayserver.org) payment gateway, allowing

users to collect payments in any Ethereum-compatible blockchain, using

either the blockchain's native token or any ERC20-compatible token

smart contract.



#### Integration with Layer-2 systems for fast and ultra-cheap transactions



The ability to interact with any blockchain that uses Ethereum's JSON

RPC protocol means that it is possible to interact seamlessly with

scaling projects such as

[roll-ups](https://docs.ethhub.io/ethereum-roadmap/layer-2-scaling/optimistic_rollups/)

like [Arbitrum](https://arbitrum.io/) or

[Optimism](https://www.optimism.io/), and also sidechains like

[xDAI](https://xdaichain.com) or

[Polygon](https://polygin.technology).



Hub20 also integrates with [Raiden Network](https://raiden.network),

so that if you have a node running you should be able to accept and

send payments of ERC20 tokens with near-zero fees. Integrating Raiden

brings the possibility of nearly-free transfers, irreversibility of

transactions and the usage of stablecoins such as

[DAI](https://makerdao.com), which make it a very compelling offer for anyone

that wants to receive payments online.



### More than a payment gateway



Hub20 also allows users *sending* their tokens to either other users

of the hub as well as to any external account (on the compatible

blockchains), effectively turning any deployment of a hub20 server

into an exclusive Paypal/Venmo/cryptobank for its users.



This works because hub20 offers the possibility of using custodial

wallets for managing its funds. While this is not ideal for large

deployments such as companies and crypto exchanges, for a self-hosted

service this is more acceptable because the node operator is the one

effectively controlling the wallets and therefore its keys.



This also opens the possibility for, e.g, enthusiasts to set up a

hub20 node for their non-technical friends and family (i.e, people

that are within their circle of trust) so that they can have an easy

way to do transactions in cryptocurrency without ever having to deal

with anything that hinders adoption: nothing to learn about wallets,

no access to exchanges needed, no KYC, etc.



### Extensible architecture



Hub20 is designed to work as a bridge between the "traditional" web

and the growing-but-still-challenging web3 and decentralized apps

based on the Ethereum blockchain. Hub Administrators can choose how

much they want to pick from each "side" of the tech stack that is more

suited to their needs. Want to create a hub that can authenticate with

your company's LDAP or do you prefer to use ethereum account ownership

for authentication? They are both just a configuration setting away.



## More details:



  - [Main website](https://hub20.io)

  - [Documentation](https://docs.hub20.io)

  - [Blog](https://blog.hub20.io)

  - [Frontend](https://app.hub20.io) application is available and can

    connect to any backend server available on the internet. Use

    https://demo.hub20.io as a test instance that we provide,

    connected to test networks (Görli, Binance Test, Test Arbitrum, Test Optimism).



### Contributing



If you like to contribute, don't hesitate to get in touch. Any

contribution is more than welcome. You don't need to be a developer to

try the demo application, find bugs and make suggestions for

improvements. We are using

[Taiga](https://tree.taiga.io/project/lullis-mushroomlabshub20/) to

track issues and to manage the work and milestones.



The official repository is at

[Gitlab](https://gitlab.com/mushroomlabs/hub20), and we also keep a

mirror at [Github](https://github.com/mushroomlabs/hub20). Gitlab is

preferred because it provides a free (as in libre) platform for our

Continuous Integration system.



### License



The project is made up of different components:



 - The backend code provides an API and does all the interfacing with

   the blockchain and the underlying Raiden node. This is available

   under the [Affero GNU Public License

   v3](https://www.gnu.org/licenses/agpl-3.0.en.html)

 - The web application that works as the frontend and the base

   javascript library are

   [MIT-licensed](https://www.tldrlegal.com/l/mit)



### Supporters



Hub20 development started thanks to a grant awarded by the [Raiden

Trust](https://medium.com/raiden-network/hub20-the-latest-grant-895c9fabcb9c).

If you'd like to support the project, please visit our [sponsors

page](https://github.com/sponsors/mushroomlabs)