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Smart contracts at Request Finance
Smart contracts at Request Finance

The list of smart contracts used for payments through Request Finance

Max Franke avatar
Written by Max Franke
Updated today

Smart contracts power Request's payment engine. They enhance efficiency by supporting automatic reconciliation, batch payments (handling multiple transactions in a single process), and payments with currency conversion (such as settling a USD invoice in cryptocurrency), reducing time spent and the risk of errors. All smart contracts are publicly available on GitHub here.

The list below is not a comprehensive list of all networks supported on Request, as some networks or actions operate without a smart contract.

If you notice a difference between the payment address in your wallet and the one shown on the payable, use the table below to confirm the correct address.

Never send funds directly to smart contracts, as they will be lost. Only use the smart contracts via Request Finance (app.request.finance).

Paying fiat-denominated payable in ERC-20 token

The contracts below are used when paying a fiat-denominated payable in an ERC20 token (e.g., paying a USD-denominated bill in USDC).

Network

Smart Contract Address

Arbitrum One

0xA5186dec7dC1ec85B42A3cd2Dc8289e248530B07

Avalanche

0xA5186dec7dC1ec85B42A3cd2Dc8289e248530B07

Base

0x8296D56321cf207925a7804E5A8E3F579838e6Ad

BNB Chain

0xbbd9c5D112343A4Aa2bc194245760CaeeaF118Be

Celo

0xf0f49873C50765239F6f9534Ba13c4fe16eD5f2E

Core

Uses ERC20FeeProxy

Ethereum

0xe72Ecea44b6d8B2b3cf5171214D9730E86213cA2

Fantom

0xf0f49873C50765239F6f9534Ba13c4fe16eD5f2E

Fuse

Uses ERC20FeeProxy

GnosisChain

0xf0f49873C50765239F6f9534Ba13c4fe16eD5f2E

Moonbeam

0x1550A8C4F4E5afC67Ea07e8ac590fdcAdB4bBfb1

Optimism

0x1550A8C4F4E5afC67Ea07e8ac590fdcAdB4bBfb1

Polygon

0xf0f49873C50765239F6f9534Ba13c4fe16eD5f2E

zkSync Era

Uses ERC20FeeProxy

GitHub reference: ERC20ConversionProxy

Paying ERC20-denominated payable in ERC20 token

The contracts below are used when paying an ERC20-denominated payable in ERC20 token (e.g., paying a USDC-denominated bill in USDC).

Network

Smart Contract Address

Arbitrum One

0x0DfbEe143b42B41eFC5A6F87bFD1fFC78c2f0aC9

Avalanche

0x0DfbEe143b42B41eFC5A6F87bFD1fFC78c2f0aC9

Base

0x1892196E80C4c17ea5100Da765Ab48c1fE2Fb814

BNB Chain

0x0DfbEe143b42B41eFC5A6F87bFD1fFC78c2f0aC9

Celo

0x2171a0dc12a9E5b1659feF2BB20E54c84Fa7dB0C

Core

0x399F5EE127ce7432E4921a61b8CF52b0af52cbfE

Ethereum

0x370DE27fdb7D1Ff1e1BaA7D11c5820a324Cf623C

Fantom

0x0DfbEe143b42B41eFC5A6F87bFD1fFC78c2f0aC9

Fuse

0xee07ef5B414955188d2A9fF50bdCE784A49031Fc

GnosisChain

0x0DfbEe143b42B41eFC5A6F87bFD1fFC78c2f0aC9

Moonbeam

0x399F5EE127ce7432E4921a61b8CF52b0af52cbfE

Optimism

0x399F5EE127ce7432E4921a61b8CF52b0af52cbfE

Polygon

0x0DfbEe143b42B41eFC5A6F87bFD1fFC78c2f0aC9

zkSync Era

0x6e28Cc56C2E64c9250f39Cb134686C87dB196532

GitHub reference: ERC20FeeProxy

Paying a fiat-denominated payable in native currency

The contracts below are used when paying a fiat-denominated payable in native currency (e.g., paying a USD-denominated bill in ETH on Ethereum).

Network

Smart Contract Address

Arbitrum One

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

Avalanche

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

Base

0xEdfD8386d5DE52072B4Ad8dC69BBD0bB89f9A1fb

BNB Chain

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

Celo

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

Core

Uses ERC20FeeProxy

Ethereum

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

Fantom

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

Fuse

Uses ERC20FeeProxy

GnosisChain

Uses ERC20FeeProxy

Moonbeam

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

Optimism

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

Polygon

0x7Ebf48a26253810629C191b56C3212Fd0D211c26

zkSync Era

Uses ERC20FeeProxy

GitHub reference: EthConversionProxy

Paying a native currency-denominated payable in native currency

The contracts below are used when paying a native currency-denominated payable in native currency (e.g., paying an ETH-denominated bill in ETH on Ethereum).

Network

Smart Contract Address

Arbitrum One

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

Avalanche

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

Base

0xd9C3889eB8DA6ce449bfFE3cd194d08A436e96f2

BNB Chain

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

Celo

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

Core

0xe11BF2fDA23bF0A98365e1A4c04A87C9339e8687

Ethereum

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

Fantom

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

Fuse

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

GnosisChain

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

Moonbeam

0xe11BF2fDA23bF0A98365e1A4c04A87C9339e8687

Optimism

0xe11BF2fDA23bF0A98365e1A4c04A87C9339e8687

Polygon

0xfCFBcfc4f5A421089e3Df45455F7f4985FE2D6a8

zkSync Era

0xE9A708db0D30409e39810C44cA240fd15cdA9b1a

GitHub reference: EthereumFeeProxy

Making batch payments

The contracts below are used for batch payments (making multiple payments in one go).

Network

Smart Contract Address

Arbitrum One

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Avalanche

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Base

0x1aF3f22685AcdDc788B3730ed415912d8f654420

BNB Chain

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Celo

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Core

0x02561967c48e87cfB079763F3BEf6424A5A166A7

Ethereum

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Fantom

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Fuse

0x3cF63891928B8CeebB81C95426600a18cd59C03f

GnosisChain

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Moonbeam

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Optimism

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Polygon

0x3cF63891928B8CeebB81C95426600a18cd59C03f

Tron

TX3TwEQYhqaEB6765KH7gP4y7MdRnzp28V

zkSync Era

0x0C41700ee1B363DB2ebC1a985f65cAf6eC4b1023

GitHub reference: BatchConversionPayments

Making Crypto-to-Fiat payments

The contracts below are used when making a Crypto-to-Fiat payment. All networks and currencies supported for Crypto-to-Fiat are listed here.

Network

Smart Contract Address

Arbitrum One

0x0DfbEe143b42B41eFC5A6F87bFD1fFC78c2f0aC9

Ethereum

0x370DE27fdb7D1Ff1e1BaA7D11c5820a324Cf623C

Polygon

0x0DfbEe143b42B41eFC5A6F87bFD1fFC78c2f0aC9

Solana

-

Tron

-

GitHub reference: ERC20FeeProxy

Making a swap payments

The contracts below are used when paying a payable in ERC20 using cryptocurrency conversion (swap).

The swap payment option is phasing out and may already not be available on some networks.

Network

Smart Contract Address

Arbitrum One

0x1d6B06C6f7adFd9314BD4C58a6D306261113a1D4

Avalanche

0x1d6B06C6f7adFd9314BD4C58a6D306261113a1D4

Base

0xFbBd0854048a8A75a8823c230e673F8331140483

BNB Chain

0x1d6B06C6f7adFd9314BD4C58a6D306261113a1D4

Celo

0x1d6B06C6f7adFd9314BD4C58a6D306261113a1D4

Core

-

Ethereum

0x3b4837C9F4A606b71e61FD56Db6241781194df92

Fantom

0x1d6B06C6f7adFd9314BD4C58a6D306261113a1D4

Fuse

-

GnosisChain

0x3b4837C9F4A606b71e61FD56Db6241781194df92

Moonbeam

0x80D1EE67ffAf7047d3E6EbF7317cF0eAd63FFc78

Optimism

0x80D1EE67ffAf7047d3E6EbF7317cF0eAd63FFc78

Polygon

0x3b4837C9F4A606b71e61FD56Db6241781194df92

zkSync Era

-

GitHub reference: ERC20SwapConversion

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