# FSP Reference > Solidity reference for Flare contracts. > For the complete documentation index, see [llms.txt](/llms.txt). Markdown versions of documentation pages are available by appending `.md` to the page URL. Source: https://dev.flare.network/network/fsp/solidity-reference ## Deployed Contracts[​](#deployed-contracts "Direct link to Deployed Contracts") Contract Address ABI `EntityManager` [`0x134b3311C6BdeD895556807a30C7f047D99DfdC2`](https://flare-explorer.flare.network/address/0x134b3311C6BdeD895556807a30C7f047D99DfdC2 "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0x134b3311C6BdeD895556807a30C7f047D99DfdC2?tab=contract_abi "View contract ABI in explorer") `Submission` [`0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f`](https://flare-explorer.flare.network/address/0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f?tab=contract_abi "View contract ABI in explorer") `FlareSystemsManager` [`0x89e50DC0380e597ecE79c8494bAAFD84537AD0D4`](https://flare-explorer.flare.network/address/0x89e50DC0380e597ecE79c8494bAAFD84537AD0D4 "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0x89e50DC0380e597ecE79c8494bAAFD84537AD0D4?tab=contract_abi "View contract ABI in explorer") `Relay` [`0xCcF30790A93F15e24EB909548a2C58a9b0a7FBd4`](https://flare-explorer.flare.network/address/0xCcF30790A93F15e24EB909548a2C58a9b0a7FBd4 "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0xCcF30790A93F15e24EB909548a2C58a9b0a7FBd4?tab=contract_abi "View contract ABI in explorer") `RewardManager` [`0xC8f55c5aA2C752eE285Bd872855C749f4ee6239B`](https://flare-explorer.flare.network/address/0xC8f55c5aA2C752eE285Bd872855C749f4ee6239B "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0xC8f55c5aA2C752eE285Bd872855C749f4ee6239B?tab=contract_abi "View contract ABI in explorer") `VoterRegistry` [`0x2580101692366e2f331e891180d9ffdF861Fce83`](https://flare-explorer.flare.network/address/0x2580101692366e2f331e891180d9ffdF861Fce83 "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0x2580101692366e2f331e891180d9ffdF861Fce83?tab=contract_abi "View contract ABI in explorer") `FlareSystemsCalculator` [`0x67c4B11c710D35a279A41cff5eb089Fe72748CF8`](https://flare-explorer.flare.network/address/0x67c4B11c710D35a279A41cff5eb089Fe72748CF8 "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0x67c4B11c710D35a279A41cff5eb089Fe72748CF8?tab=contract_abi "View contract ABI in explorer") `WNatDelegationFee` [`0xb382DC86C06f91ef711703a582D08977b2601726`](https://flare-explorer.flare.network/address/0xb382DC86C06f91ef711703a582D08977b2601726 "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0xb382DC86C06f91ef711703a582D08977b2601726?tab=contract_abi "View contract ABI in explorer") `ValidatorRewardManager` [`0xc0CF3Aaf93bd978C5BC662564Aa73E331f2eC0B5`](https://flare-explorer.flare.network/address/0xc0CF3Aaf93bd978C5BC662564Aa73E331f2eC0B5 "Open in explorer") [ABI](https://flare-explorer.flare.network/address/0xc0CF3Aaf93bd978C5BC662564Aa73E331f2eC0B5?tab=contract_abi "View contract ABI in explorer") Contract Address ABI `EntityManager` [`0xE62c5557210a5D095BfC2fDc8B2b5D64609cfDf1`](https://coston2-explorer.flare.network/address/0xE62c5557210a5D095BfC2fDc8B2b5D64609cfDf1 "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0xE62c5557210a5D095BfC2fDc8B2b5D64609cfDf1?tab=contract_abi "View contract ABI in explorer") `Submission` [`0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f`](https://coston2-explorer.flare.network/address/0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f?tab=contract_abi "View contract ABI in explorer") `FlareSystemsManager` [`0xA90Db6D10F856799b10ef2A77EBCbF460aC71e52`](https://coston2-explorer.flare.network/address/0xA90Db6D10F856799b10ef2A77EBCbF460aC71e52 "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0xA90Db6D10F856799b10ef2A77EBCbF460aC71e52?tab=contract_abi "View contract ABI in explorer") `Relay` [`0xa10B672D1c62e5457b17af63d4302add6A99d7dE`](https://coston2-explorer.flare.network/address/0xa10B672D1c62e5457b17af63d4302add6A99d7dE "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0xa10B672D1c62e5457b17af63d4302add6A99d7dE?tab=contract_abi "View contract ABI in explorer") `RewardManager` [`0xB4f43E342c5c77e6fe060c0481Fe313Ff2503454`](https://coston2-explorer.flare.network/address/0xB4f43E342c5c77e6fe060c0481Fe313Ff2503454 "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0xB4f43E342c5c77e6fe060c0481Fe313Ff2503454?tab=contract_abi "View contract ABI in explorer") `VoterRegistry` [`0xc6E40401395DCc648bC4bBb38fE4552423cD9BAC`](https://coston2-explorer.flare.network/address/0xc6E40401395DCc648bC4bBb38fE4552423cD9BAC "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0xc6E40401395DCc648bC4bBb38fE4552423cD9BAC?tab=contract_abi "View contract ABI in explorer") `FlareSystemsCalculator` [`0x9aF60c16192330EC98d04Ec9675d22dBb9892951`](https://coston2-explorer.flare.network/address/0x9aF60c16192330EC98d04Ec9675d22dBb9892951 "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0x9aF60c16192330EC98d04Ec9675d22dBb9892951?tab=contract_abi "View contract ABI in explorer") `WNatDelegationFee` [`0xd357A191986982CDcb4E093508362a2Ffc412772`](https://coston2-explorer.flare.network/address/0xd357A191986982CDcb4E093508362a2Ffc412772 "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0xd357A191986982CDcb4E093508362a2Ffc412772?tab=contract_abi "View contract ABI in explorer") `ValidatorRewardManager` [`0x33913AcE907F682E305f36d7538D3cCd37E2cA5B`](https://coston2-explorer.flare.network/address/0x33913AcE907F682E305f36d7538D3cCd37E2cA5B "Open in explorer") [ABI](https://coston2-explorer.flare.network/address/0x33913AcE907F682E305f36d7538D3cCd37E2cA5B?tab=contract_abi "View contract ABI in explorer") Contract Address ABI `EntityManager` [`0x46C417D0760198E94fee455CE0e223262a3D0049`](https://songbird-explorer.flare.network/address/0x46C417D0760198E94fee455CE0e223262a3D0049 "Open in explorer") [ABI](https://songbird-explorer.flare.network/address/0x46C417D0760198E94fee455CE0e223262a3D0049?tab=contract_abi "View contract ABI in explorer") `Submission` [`0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f`](https://songbird-explorer.flare.network/address/0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f "Open in explorer") [ABI](https://songbird-explorer.flare.network/address/0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f?tab=contract_abi "View contract ABI in explorer") `FlareSystemsManager` [`0x421c69E22f48e14Fc2d2Ee3812c59bfb81c38516`](https://songbird-explorer.flare.network/address/0x421c69E22f48e14Fc2d2Ee3812c59bfb81c38516 "Open in explorer") [ABI](https://songbird-explorer.flare.network/address/0x421c69E22f48e14Fc2d2Ee3812c59bfb81c38516?tab=contract_abi "View contract ABI in explorer") `Relay` [`0xCB86E8Be709001e01897Bf59847406853da8f14b`](https://songbird-explorer.flare.network/address/0xCB86E8Be709001e01897Bf59847406853da8f14b "Open in explorer") [ABI](https://songbird-explorer.flare.network/address/0xCB86E8Be709001e01897Bf59847406853da8f14b?tab=contract_abi "View contract ABI in explorer") `RewardManager` [`0xE26AD68b17224951b5740F33926Cc438764eB9a7`](https://songbird-explorer.flare.network/address/0xE26AD68b17224951b5740F33926Cc438764eB9a7 "Open in explorer") [ABI](https://songbird-explorer.flare.network/address/0xE26AD68b17224951b5740F33926Cc438764eB9a7?tab=contract_abi "View contract ABI in explorer") `VoterRegistry` [`0x31B9EC65C731c7D973a33Ef3FC83B653f540dC8D`](https://songbird-explorer.flare.network/address/0x31B9EC65C731c7D973a33Ef3FC83B653f540dC8D "Open in explorer") [ABI](https://songbird-explorer.flare.network/address/0x31B9EC65C731c7D973a33Ef3FC83B653f540dC8D?tab=contract_abi "View contract ABI in explorer") `FlareSystemsCalculator` [`0x126FAeEc75601dA3354c0b5Cc0b60C85fCbC3A5e`](https://songbird-explorer.flare.network/address/0x126FAeEc75601dA3354c0b5Cc0b60C85fCbC3A5e "Open in explorer") [ABI](https://songbird-explorer.flare.network/address/0x126FAeEc75601dA3354c0b5Cc0b60C85fCbC3A5e?tab=contract_abi "View contract ABI in explorer") `WNatDelegationFee` [`0x3499a6D765640F8D35538cF0a292BcA38504353C`](https://songbird-explorer.flare.network/address/0x3499a6D765640F8D35538cF0a292BcA38504353C "Open in explorer") [ABI](https://songbird-explorer.flare.network/address/0x3499a6D765640F8D35538cF0a292BcA38504353C?tab=contract_abi "View contract ABI in explorer") `ValidatorRewardManager` — — Contract Address ABI `EntityManager` [`0x60A848E5Da796D741e559c170E851FC813061217`](https://coston-explorer.flare.network/address/0x60A848E5Da796D741e559c170E851FC813061217 "Open in explorer") [ABI](https://coston-explorer.flare.network/address/0x60A848E5Da796D741e559c170E851FC813061217?tab=contract_abi "View contract ABI in explorer") `Submission` [`0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f`](https://coston-explorer.flare.network/address/0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f "Open in explorer") [ABI](https://coston-explorer.flare.network/address/0x2cA6571Daa15ce734Bbd0Bf27D5C9D16787fc33f?tab=contract_abi "View contract ABI in explorer") `FlareSystemsManager` [`0x85680Dd93755Fe5d0789773fd0896cEE51F9e358`](https://coston-explorer.flare.network/address/0x85680Dd93755Fe5d0789773fd0896cEE51F9e358 "Open in explorer") [ABI](https://coston-explorer.flare.network/address/0x85680Dd93755Fe5d0789773fd0896cEE51F9e358?tab=contract_abi "View contract ABI in explorer") `Relay` [`0x051f214D346Cfd97B107BECb87E2B35D1b4287E9`](https://coston-explorer.flare.network/address/0x051f214D346Cfd97B107BECb87E2B35D1b4287E9 "Open in explorer") [ABI](https://coston-explorer.flare.network/address/0x051f214D346Cfd97B107BECb87E2B35D1b4287E9?tab=contract_abi "View contract ABI in explorer") `RewardManager` [`0x2ade9972E7f27200872D378acF7a1BaD8D696FC5`](https://coston-explorer.flare.network/address/0x2ade9972E7f27200872D378acF7a1BaD8D696FC5 "Open in explorer") [ABI](https://coston-explorer.flare.network/address/0x2ade9972E7f27200872D378acF7a1BaD8D696FC5?tab=contract_abi "View contract ABI in explorer") `VoterRegistry` [`0xB4B93a3A3ADa93a574E6efeb5f295bf882934cB6`](https://coston-explorer.flare.network/address/0xB4B93a3A3ADa93a574E6efeb5f295bf882934cB6 "Open in explorer") [ABI](https://coston-explorer.flare.network/address/0xB4B93a3A3ADa93a574E6efeb5f295bf882934cB6?tab=contract_abi "View contract ABI in explorer") `FlareSystemsCalculator` [`0x3787dCBD770202F856ED9204c19d6f9022Ff3BF2`](https://coston-explorer.flare.network/address/0x3787dCBD770202F856ED9204c19d6f9022Ff3BF2 "Open in explorer") [ABI](https://coston-explorer.flare.network/address/0x3787dCBD770202F856ED9204c19d6f9022Ff3BF2?tab=contract_abi "View contract ABI in explorer") `WNatDelegationFee` [`0xD6f2DC0A3433613d3d0Ee1d764e22631cCF175C8`](https://coston-explorer.flare.network/address/0xD6f2DC0A3433613d3d0Ee1d764e22631cCF175C8 "Open in explorer") [ABI](https://coston-explorer.flare.network/address/0xD6f2DC0A3433613d3d0Ee1d764e22631cCF175C8?tab=contract_abi "View contract ABI in explorer") `ValidatorRewardManager` — — ## Interfaces[​](#interfaces "Direct link to Interfaces") [ ## IEntityManager Manages voter entities, including addresses and node IDs. ](/network/fsp/solidity-reference/IEntityManager) [ ## ISubmission Manages prioritized and subsidized submissions for protocols. ](/network/fsp/solidity-reference/ISubmission) [ ## IFlareSystemsManager Manages system protocols like Signing Policy Definition, Uptime Voting, and Reward Voting. ](/network/fsp/solidity-reference/IFlareSystemsManager) [ ## IRelay Stores confirmed Merkle roots and signing policies. ](/network/fsp/solidity-reference/IRelay) [ ## IRewardManager Facilitates the claiming and distribution of rewards to voters, delegators, and stakers. ](/network/fsp/solidity-reference/IRewardManager) [ ## IVoterRegistry Manages the registration of voters for upcoming reward epochs. ](/network/fsp/solidity-reference/IVoterRegistry) [ ## IFlareSystemsCalculator Performs calculations for weights and burn factors used by other contracts. ](/network/fsp/solidity-reference/IFlareSystemsCalculator) [ ## IWNatDelegationFee Manages the delegation fees set by voters for WFLR delegations. ](/network/fsp/solidity-reference/IWNatDelegationFee)