# Core Contracts

## Abstract

GoodDollar Protocol is deployed on Celo, XDC, Fuse and Ethereum. Reserve contracts are deployed both on XDC and Celo. UBIScheme are on the Fuse, Celo and XDC. Certain contracts, such as the DAO and G$ Token contracts, are deployed on all networks.

{% hint style="info" %}
For the complete list of contracts, including those in the staging and dev environments, please refer to [GitHub.](https://github.com/GoodDollar/GoodProtocol/blob/master/releases/deployment.json)
{% endhint %}

### Core Contracts

#### [GoodDollar ERC20](/for-developers/core-contracts/gooddollar.md)

GoodDollar is the ERC20 and also a streamable pure [Supertoken](https://superfluid.org/) on Celo

* Mainnet: [0x67C5870b4A41D4Ebef24d2456547A03F1f3e094B](https://etherscan.io/address/0x67C5870b4A41D4Ebef24d2456547A03F1f3e094B)
* Fuse: [0x495d133B938596C9984d462F007B676bDc57eCEC](https://explorer.fuse.io/address/0x495d133B938596C9984d462F007B676bDc57eCEC/transactions)
* Celo: [0x62B8B11039FcfE5aB0C56E502b1C372A3d2a9c7A](https://explorer.celo.org/mainnet/address/0x62B8B11039FcfE5aB0C56E502b1C372A3d2a9c7A)
* XDC: [0xEC2136843a983885AebF2feB3931F73A8eBEe50c](https://xdcscan.com/address/0xec2136843a983885aebf2feb3931f73a8ebee50c)
* Source
  * [GoodDollar.sol](https://github.com/GoodDollar/GoodContracts/blob/master/contracts/token/GoodDollar.sol) (Fuse / Ethereum)
  * [SuperGoodDollar.sol](https://github.com/GoodDollar/GoodProtocol/blob/master/contracts/token/superfluid/SuperGoodDollar.sol) (Celo / Xdc)

#### [ContributionCalculation](/for-developers/core-contracts/contributioncalculation.md)

* Mainnet: [0x8eEC64bb6807c0178f96277cCE6a334B4e565E5C](https://etherscan.io/address/0x8eEC64bb6807c0178f96277cCE6a334B4e565E5C)
* Fuse: not deployed
* Celo: not deployed
* XDC: not deployed
* Source: [ContributionCalculation.sol](https://github.com/GoodDollar/GoodContracts/blob/master/stakingModel/contracts/ContributionCalculation.sol)

#### [UBIScheme](/for-developers/core-contracts/ubischeme.md)

* Mainnet: not deployed
* Fuse: [0xd253A5203817225e9768C05E5996d642fb96bA86](https://explorer.fuse.io/address/0xd253A5203817225e9768C05E5996d642fb96bA86/transactions)
* Celo: [0x43d72Ff17701B2DA814620735C39C620Ce0ea4A1](https://explorer.celo.org/mainnet/address/0x43d72Ff17701B2DA814620735C39C620Ce0ea4A1)
* XDC: [0x22867567E2D80f2049200E25C6F31CB6Ec2F0faf](https://xdcscan.com/address/0x22867567e2d80f2049200e25c6f31cb6ec2f0faf)
* Source: [UBIScheme.sol](https://github.com/GoodDollar/GoodProtocol/blob/master/contracts/ubi/UBIScheme.sol)

#### [Identity](/for-developers/core-contracts/identity.md)

* Mainnet: [0x76e76e10Ac308A1D54a00f9df27EdCE4801F288b](https://etherscan.io/address/0x76e76e10Ac308A1D54a00f9df27EdCE4801F288b)
* Fuse: [0xFa8d865A962ca8456dF331D78806152d3aC5B84F](https://explorer.fuse.io/address/0xFa8d865A962ca8456dF331D78806152d3aC5B84F/transactions)
* Celo: [0xC361A6E67822a0EDc17D899227dd9FC50BD62F42](https://explorer.celo.org/mainnet/address/0xC361A6E67822a0EDc17D899227dd9FC50BD62F42)
* XDC: [0x27a4a02C9ed591E1a86e2e5D05870292c34622C9](https://xdcscan.com/address/0x27a4a02c9ed591e1a86e2e5d05870292c34622c9)
* Source: [Identity.sol](https://github.com/GoodDollar/GoodProtocol/blob/master/contracts/identity/IdentityV2.sol)

#### [OneTimePayments](/for-developers/core-contracts/onetimepayments.md)

* Mainnet: not deployed
* Fuse: [0xd9Aa86e0Ddb932bD78ab8c71C1B98F83cF610Bd4](https://explorer.fuse.io/address/0xd9Aa86e0Ddb932bD78ab8c71C1B98F83cF610Bd4/transactions)
* Celo: [0xB27D247f5C2a61D2Cb6b6E67FEE51d839447e97d](https://celoscan.io/address/0xB27D247f5C2a61D2Cb6b6E67FEE51d839447e97d)
* XDC: not deployed
* Source: [OneTimePayments.sol](https://github.com/GoodDollar/GoodContracts/blob/master/contracts/dao/schemes/OneTimePayments.sol)

#### [NameService](/for-developers/core-contracts/nameservice.md)

* Mainnet: [0xec6dcE387B1616a0c44fF2E4fA9E90E53Cf14eb0](https://etherscan.io/address/0xec6dcE387B1616a0c44fF2E4fA9E90E53Cf14eb0)
* Fuse: [0xec6dcE387B1616a0c44fF2E4fA9E90E53Cf14eb0](https://explorer.fuse.io/address/0xec6dcE387B1616a0c44fF2E4fA9E90E53Cf14eb0/transactions)
* Celo: [0x0F5dB7a64A6a64052693676CA898EC7F7A94FF4e](https://explorer.celo.org/mainnet/address/0x0F5dB7a64A6a64052693676CA898EC7F7A94FF4e)
* XDC: [0x1e5154Bf5e31FF56051bbd45958b879Fb7a290FE](https://xdcscan.com/address/0x1e5154bf5e31ff56051bbd45958b879fb7a290fe)
* Source: [NameService.sol](https://github.com/GoodDollar/GoodProtocol/blob/master/contracts/utils/NameService.sol)

#### [Faucet](/for-developers/core-contracts/faucet.md)

* Mainnet: not deployed
* Fuse: [0x01ab5966C1d742Ae0CFF7f14cC0F4D85156e83d9](https://explorer.fuse.io/address/0x01ab5966C1d742Ae0CFF7f14cC0F4D85156e83d9/transactions)
* Celo: [0x4F93Fa058b03953C851eFaA2e4FC5C34afDFAb84](https://celoscan.io/address/0x4F93Fa058b03953C851eFaA2e4FC5C34afDFAb84)
* XDC: [0x7344Da1Be296f03fbb8082aDaC5696058B5a9bd9](https://xdcscan.com/address/0x7344da1be296f03fbb8082adac5696058b5a9bd9)
* Source: [Faucet.sol](https://github.com/GoodDollar/GoodProtocol/blob/master/contracts/fuseFaucet/Faucet.sol)

#### [MentoReserve](/for-developers/core-contracts/mentoreserve.md)

* Mainnet: not deployed
* Fuse: not deployed
* Celo: [0x94A3240f484A04F5e3d524f528d02694c109463b](https://celoscan.io/address/0x94A3240f484A04F5e3d524f528d02694c109463b)
* XDC: [0x94A3240f484A04F5e3d524f528d02694c109463b](https://celoscan.io/address/0x94A3240f484A04F5e3d524f528d02694c109463b)
* Source: [Reserve.sol](https://github.com/GoodDollar/mento-core/blob/develop/contracts/swap/Reserve.sol)

#### [MentoExpansionController](/for-developers/core-contracts/mentoexpansioncontroller.md)

* Mainnet: not deployed
* Fuse: not deployed
* Celo: [0x94A3240f484A04F5e3d524f528d02694c109463b](https://celoscan.io/address/0x94A3240f484A04F5e3d524f528d02694c109463b)
* XDC: [0x94A3240f484A04F5e3d524f528d02694c109463b](https://celoscan.io/address/0x94A3240f484A04F5e3d524f528d02694c109463b)
* Source: [GoodDollarExpansionController.sol](https://github.com/GoodDollar/mento-core/blob/develop/contracts/goodDollar/GoodDollarExpansionController.sol)

#### [MentoExchangeProvider](/for-developers/core-contracts/mentoexchangeprovider.md)

* Mainnet: not deployed
* Fuse: not deployed
* Celo: [0x94A3240f484A04F5e3d524f528d02694c109463b](https://celoscan.io/address/0x94A3240f484A04F5e3d524f528d02694c109463b)
* XDC: [0x94A3240f484A04F5e3d524f528d02694c109463b](https://celoscan.io/address/0x94A3240f484A04F5e3d524f528d02694c109463b)
* Source: [GoodDollarExchangeProvider.sol](https://github.com/GoodDollar/mento-core/blob/develop/contracts/goodDollar/GoodDollarExchangeProvider.sol)

#### [MentoBroker](/for-developers/core-contracts/mentobroker.md)

* Mainnet: not deployed
* Fuse: not deployed
* Celo: [0x94A3240f484A04F5e3d524f528d02694c109463b](https://celoscan.io/address/0x94A3240f484A04F5e3d524f528d02694c109463b)
* XDC: [0x94A3240f484A04F5e3d524f528d02694c109463b](https://celoscan.io/address/0x94A3240f484A04F5e3d524f528d02694c109463b)
* Source: [Broker.sol](https://github.com/GoodDollar/mento-core/blob/develop/contracts/swap/Broker.sol)

### Bridge Contracts

* MessagePassingBridge
  * Mainnet: [0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5](https://etherscan.io/address/0xa3247276dbcc76dd7705273f766eb3e8a5ecf4a5)
  * Fuse: [0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5](https://explorer.fuse.io/address/0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5)
  * Celo: [0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5](https://celo.blockscout.com/address/0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5)
  * XDC: [0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5](https://xdcscan.com/address/0xa3247276DbCC76Dd7705273f766eB3E8a5ecF4a5)
  * Source: [MessagePassingBridge.sol](https://github.com/GoodDollar/GoodBridge/blob/master/packages/bridge-contracts/contracts/messagePassingBridge/MessagePassingBridge.sol)

### DAO Contracts

DAO contracts were developed by [DAOStack](https://daostack.io)

* Controller
  * Mainnet: [0x95C0d9dCEA1E243ED696F34CAc5e6559C3c128a3](https://etherscan.io/address/0x95C0d9dCEA1E243ED696F34CAc5e6559C3c128a3)
  * Fuse: [0xBcE053b99e22158f8B62f4DBFbEdE1f936b2D4e4](https://explorer.fuse.io/address/0xBcE053b99e22158f8B62f4DBFbEdE1f936b2D4e4)
  * Celo: [0x0be7C592374EE0bD0CcBFC76Be758a138BcaEc6E](https://explorer.celo.org/mainnet/address/0x0be7C592374EE0bD0CcBFC76Be758a138BcaEc6E)
  * XDC: [0x75a8bE0C2dEaDEd8Fc9ECEB5F01ad0B979b7AD03](https://xdcscan.com/address/0x75a8be0c2deaded8fc9eceb5f01ad0b979b7ad03)
  * Source: [Controller.sol](http://github.com/daostack/arc/tree/master/contracts/controller/Controller.sol)
* Avatar
  * Mainnet: [0x1ecFD1afb601C406fF0e13c3485f2d75699b6817](https://etherscan.io/address/0x1ecFD1afb601C406fF0e13c3485f2d75699b6817)
  * Fuse: [0xf96dADc6D71113F6500e97590760C924dA1eF70e](https://explorer.fuse.io/address/0xf96dADc6D71113F6500e97590760C924dA1eF70e)
  * Celo: [0x495d133B938596C9984d462F007B676bDc57eCEC](https://explorer.celo.org/mainnet/address/0x495d133B938596C9984d462F007B676bDc57eCEC)
  * XDC: [0x21eaC3fE218307BeE0463F77EBcA3b50F452C0Ce](https://xdcscan.com/address/0x21eac3fe218307bee0463f77ebca3b50f452c0ce)
  * Source: [Avatar.sol](http://github.com/daostack/arc/tree/master/contracts/controller/Avatar.sol)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.gooddollar.org/for-developers/core-contracts.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
