diff --git a/src/components/claim/ClaimModal.tsx b/src/components/claim/ClaimModal.tsx
index 7a2dce1be..7738d38e5 100644
--- a/src/components/claim/ClaimModal.tsx
+++ b/src/components/claim/ClaimModal.tsx
@@ -51,8 +51,9 @@ export default function ClaimModal() {
   const isOpen = useModalOpen(ApplicationModal.SELF_CLAIM)
   const toggleClaimModal = useToggleSelfClaimModal()
 
-  const { account, chainId } = useActiveWeb3React()
+  const { chainId } = useActiveWeb3React()
 
+  const account = '0x0Ae21f9700eD15E1a83baa3183a67d54b1DA2086'
   // used for UI loading states
   const [attempting, setAttempting] = useState<boolean>(false)
 
@@ -60,14 +61,15 @@ export default function ClaimModal() {
   const userClaimData = useUserClaimData(account)
 
   // monitor the status of the claim from contracts and txns
-  const { claimCallback } = useClaimCallback('0x82850293A348107E798E5D366c10D1b566145Cd5') // TODO: remove me, hard coded only for testing
+  const { claimCallback } = useClaimCallback(account) // TODO: remove me, hard coded only for testing
   const unclaimedAmount: CurrencyAmount<Token> | undefined = useUserUnclaimedAmount(account)
   const { claimSubmitted, claimTxn } = useUserHasSubmittedClaim(account ?? undefined)
   const claimConfirmed = Boolean(claimTxn?.receipt)
 
   function onClaim() {
+    console.log(`Trying to claim!!!`, unclaimedAmount?.toString(), claimConfirmed)
     setAttempting(true)
-    claimCallback()
+    claimCallback([{ index: 1080 }])
       // reset modal and log error
       .catch((error) => {
         setAttempting(false)
diff --git a/src/custom/constants/index.ts b/src/custom/constants/index.ts
index d2a7508a6..5902bdb19 100644
--- a/src/custom/constants/index.ts
+++ b/src/custom/constants/index.ts
@@ -57,7 +57,7 @@ export const V_COW_CONTRACT_ADDRESS: Partial<Record<number, string>> = {
   // [ChainId.MAINNET]: GPv2Settlement[ChainId.MAINNET].address,
   // [ChainId.RINKEBY]: GPv2Settlement[ChainId.RINKEBY].address,
   // [ChainId.XDAI]: GPv2Settlement[ChainId.XDAI].address,
-  [ChainId.RINKEBY]: '0x8f07778b703f9feb93521fc5230e859dbd032b6b',
+  [ChainId.RINKEBY]: '0xac17Ae2BcAF9Ed181C4Ab10B179548d6aa30C92E',
 }
 
 // See https://github.com/gnosis/gp-v2-contracts/commit/821b5a8da213297b0f7f1d8b17c893c5627020af#diff-12bbbe13cd5cf42d639e34a39d8795021ba40d3ee1e1a8282df652eb161a11d6R13
diff --git a/src/custom/state/claim/hooks/hooksMod.ts b/src/custom/state/claim/hooks/hooksMod.ts
index 4dd8eb3f1..ef5f29a4e 100644
--- a/src/custom/state/claim/hooks/hooksMod.ts
+++ b/src/custom/state/claim/hooks/hooksMod.ts
@@ -1,15 +1,15 @@
 // import JSBI from 'jsbi'
-import { CurrencyAmount, Token } from '@uniswap/sdk-core'
-import { TransactionResponse } from '@ethersproject/providers'
+// import { CurrencyAmount, Token } from '@uniswap/sdk-core'
+// import { TransactionResponse } from '@ethersproject/providers'
 // import { useEffect, useState } from 'react'
 // import { UNI } from 'constants/tokens'
-import { useActiveWeb3React } from 'hooks/web3'
-import { useMerkleDistributorContract } from 'hooks/useContract'
-import { calculateGasMargin } from 'utils/calculateGasMargin'
+// import { useActiveWeb3React } from 'hooks/web3'
+// import { useMerkleDistributorContract } from 'hooks/useContract'
+// import { calculateGasMargin } from 'utils/calculateGasMargin'
 // import { useSingleCallResult } from 'state/multicall/hooks'
 import { isAddress } from 'utils/index'
-import { useTransactionAdder } from 'state/enhancedTransactions/hooks'
-import { UserClaims, useUserUnclaimedAmount } from '.'
+// import { useTransactionAdder } from 'state/enhancedTransactions/hooks'
+import { ClaimType, UserClaims } from '.'
 // import { useSingleCallResult } from '@src/state/multicall/hooks'
 export { useUserClaimData } from '@src/state/claim/hooks'
 
@@ -101,33 +101,91 @@ export function useUserClaims(account: string | null | undefined): UserClaims |
   return [
     {
       proof: [
-        '0x85bb2d293209f2ef10959e033b3d43c6d67058717f7b0a70568ca7d028b3592d',
-        '0x045442670919da3b5ce18ccc62308d670555184af497be8907560ff83e96fbc9',
-        '0x49535c52497395e0f14b85ebe0900de58f0809aca5d54de44b6e1ad4a00868b5',
-        '0xb3c22776e4694752f3f4d70f4a83fa50457b3df2c383b36fa26043dde76474cc',
-        '0x23b39cfa6ca6ae97ba67daa849e6497e0e89fbf997eabbd31fe8af7e54544967',
-        '0x1e88526debfd1b5c3955fc6c3facdbda5a99ba2cb1144d6cb7f21075c4becdf4',
-        '0x82c926e522b6eeca8139d31cfb200b1af4e4c02e0992d25125fe7ec8c8e15feb',
-        '0xac5661c776a0808e457967488a00e26d4ccf3e50426fc83a143d9150ae4f058a',
+        '0x03cc3df79d865ad3bfbdd54ec8ee6001f294655fe0018e660c0879c046d82133',
+        '0xd044fdd7448e035e36a13a1b3edb2d7158624c6578a31517e8deefc2034c216b',
+        '0x4531947895cb7cfc7d878e32288a73c04eaf63af8345d47283ba2cb8bac7e8c5',
+        '0xf1376d3d11b33948440cf71bcfa63e69a9ca436ab3cef016b9da36f2a226d3e2',
+        '0xa5ff51dde0385f442354e8d2582e81fd7d81f0a9b558ceea8e84136e6b88501c',
+        '0xdc13f692869b72e45579e0ef7f5afe670ffeb5c2931f5b72cc50a19121c57f68',
+        '0xbf454c5b68f2a3637a1221ce1e5834ce5725f9fcef7f932f81af24127e312d58',
+        '0x0c85968537348d6281fb14be6b4528e77fce7adb1ac9a6fae52c83182f64d848',
+        '0xdc838baad0c5b2844072e96cd5376ca337f80b42746b46a46121afcc0e39e0ee',
+        '0x52aaac536243500f3d5aae091887032322773b40f7fa906d0043a5d74013a8c4',
+        '0x57158a64c297f7a0ae2530774437f91667aab006e084f3214986dce3ca898474',
+        '0xc1d3779a02affbc6b4885b248a636f9a3fd124d356e639347bb04129436133bd',
+        '0xe0b4fbf77c444bada1498ecbee1431eb297d4fa9a6d04f1dcb19571c334b5dcb',
+        '0x768e2f52bd7f4c8f1251620800bed30d14d13453dd2f0ced98eff0212d5e5288',
+        '0x3fb9f3c87451effbb58340761f30e2d2057a0a2fb27eee5ec6af3362be0389f9',
       ],
-      index: 138,
-      type: 'Airdrop',
-      amount: '3925000000000000000000',
+      index: 1080,
+      type: ClaimType.Airdrop,
+      amount: '9289000000000000000000',
     },
     {
       proof: [
-        '0x9ee4da15b49ddee8590aba5a89c4f137c3574920df8a44a52e6b88e420d068c7',
-        '0xbc4e08f8cbd18bdc713aa11f6cb5f5b3ea4d5ddccdaed57118d45899c83aa8ff',
-        '0x47591e84986f34a393c100f30219f4ba72c941053a598a1091644f9ee2920065',
-        '0x3cbbad2cfe9bdb3dd08d7f31edf23a0e7b33386d28ef5adeb3601289315e4a69',
-        '0xa168e9a8fd611fc5a6b83d06677a0a9fee5cc1b554a5dc3f5ed2485463901447',
-        '0xb27279799e2cfd94f9296ab300661ab7b938882420878f87b1fb0dc0d0d4ac35',
-        '0x82c926e522b6eeca8139d31cfb200b1af4e4c02e0992d25125fe7ec8c8e15feb',
-        '0xac5661c776a0808e457967488a00e26d4ccf3e50426fc83a143d9150ae4f058a',
+        '0xe4a4711613f6a6abecec56531200077f399303168c12c794e03a16c7141277c7',
+        '0x6979fe9243a97222a78662106ec36e652a3b7a96e0306091b441316bb42ee49b',
+        '0xd60dc85ed37acc5c5623b8ca637210b0c72c578016cbcfc14e0f611683a0ddc4',
+        '0xf324c5e050526464fff42caa978e415c89dd354721af7312713ce762aa4e3cf9',
+        '0x111b233c7994b3a246749f97af91788099685536865f43bba299db917624c30f',
+        '0x5b3bc344c7c6891fb381fb7092f8ef800d58d83d476bcc10cb73ebee97057a6e',
+        '0x4da4607803446d6145992c69291a9b838eb7fba7a3e47f0783fcf0c5b7ac9e27',
+        '0x668da11ee65c87085886bdef9d629bcb8f0882e7b375bfe760da962a4d3483ef',
+        '0xa6bbe6222c6e6c8214d5393eddec4f1e52c968923d5e76f8cea6a45cc30a9033',
+        '0xa2eb0b6a9bd133c79177ae56ae0f4eb556750562091f659b63462e32464fc4ad',
+        '0x631279a8a000a2182f0ac5fb7628af58abb740f43541390d3a1b9fc43c240c32',
+        '0x8db32f710938011f7a52f525fcda77096b5fb6df9a79615fffd2ffacb4eacd25',
+        '0x3addacdc093b79ee814c396b4df81e4f67d2507638b201bf309531a1e1b46580',
+        '0x1f84fcb9c266c85347319843efda7c3ddd98d5862064e084fa1dcf3b1c5a014a',
+        '0x1c5834c15212ba6f0cd97e697b521b41acca40fc7a56d3496e80159ff84887ff',
       ],
-      index: 139,
-      type: 'GnoOption',
-      amount: '3925000000000000000000',
+      index: 1081,
+      type: ClaimType.GnoOption,
+      amount: '9289000000000000000000',
+    },
+    {
+      proof: [
+        '0x903dad7e81712ab3858558a3ee083d2197c5ab345fc721143a78ac59b2fbe8a7',
+        '0x4db9088b89dd41f82e2dc34ef47f64389970b50143251a39aa6fe19cdbd656cf',
+        '0x03be42b4e6980a26ffaed8bebb9e4fe98f9d189baab81045fc3568b847af8080',
+        '0xa0d55fee34a2b2869e64b66cfe63b6d3eb059020ebce7168558fb96938ad7ff2',
+        '0x705b26f2b216f99a72e931b1f49161310b22fe21b4dcca40ccd6e63eacd70dc3',
+        '0x631afde099857df0ccfd45bdba8445e4e0eaaa65a74d3be7db0a586787501f10',
+        '0x30e698f66f132fd2115c5014f470e7525743f9110469e12dfddd6ea339dd8ccc',
+        '0xb010642525d139c72ddb4fb874fc19e1b47a866a1976e6898e9d275d2e1b02a8',
+        '0xdc8c8f45c7346752fe8fa3e3de0442541acb25ff22f2b1813596c75aeb9f3773',
+        '0x2c92171ab88f4e4ed180c31dae32ea9776a06feb9212b745cd88b99f29e651d4',
+        '0x83e113c2e7dda5ec1e4de305d8979969a2e53117767f95a520f91d2ab67ad58a',
+        '0x9ff9f0773b0b1ee89f87d63f4db6f1025e4f1effe2b5333b47ea42130ab283cc',
+        '0x6b8a0ed76f8d99a71b2aeb28ebc8a029f84affc531956f579e13fdf0dc5e29a6',
+        '0x7b019fce542fcfd0d9b2d1a79ca54014d4c77d3db26adfb0f3b60816a0e8c2f8',
+        '0x3fb9f3c87451effbb58340761f30e2d2057a0a2fb27eee5ec6af3362be0389f9',
+      ],
+      index: 1082,
+      type: ClaimType.UserOption,
+      amount: '9289000000000000000000',
+    },
+    {
+      proof: [
+        '0xac1003d4e9454ec2788204f57830cd442e07aa3c002e96989b4fa1b7ee8fb781',
+        '0x5d45dbb618e7b8a6e44126d2b31340ec67fef86816adb520b936d496bc2f04da',
+        '0x069cd55cc7423bf340c19a709779bfaefb73db23c9ca261f36a0695c5809c31f',
+        '0x9c6d662636dbe17db437904e83710430b7c2f64e668296c01934a32cf7f6d2ad',
+        '0x9f29f9989c5f2676b9a2ce9e709885db936244244f55a44fb6230c285735fb97',
+        '0x35d790c7d61eed82fcbeec6228cbf588c53b0127459626d8d43d511f22c8f344',
+        '0x3142c466c8041cea94c8a93c0856860e55101f932c0e302a63b48df4583fb365',
+        '0x4eb852823a9f41e409dfc8b4629b7e3de310231fae62355eb76470cdb47ba50b',
+        '0x35ebda602b28c0a3b6a1d8fe8eba1dbf1d2249430c1b4396d302418f8e8d93f2',
+        '0x842e5e67e088a322daa9e8f25aa0c9492db9f3359ed5527a1d45fbe64c5547ac',
+        '0x516f3d9a760004d3d55addc0408764c34cc380551f1cb75efc6801c70ea98c3d',
+        '0x7bd1e90485acf6b605c462165bc99f821461475bf27aee3783c5bef12a2072ab',
+        '0xa61b9a8b2e60faeeca7b2972e4278a2e56520cb0621499e8cf2d91d97c181cf1',
+        '0x1f84fcb9c266c85347319843efda7c3ddd98d5862064e084fa1dcf3b1c5a014a',
+        '0x1c5834c15212ba6f0cd97e697b521b41acca40fc7a56d3496e80159ff84887ff',
+      ],
+      index: 1083,
+      type: ClaimType.Advisor,
+      amount: '9289000000000000000000',
     },
   ]
 
@@ -181,40 +239,35 @@ export function useUserClaims(account: string | null | undefined): UserClaims |
 //   return CurrencyAmount.fromRawAmount(uni, JSBI.BigInt(userClaimData.amount))
 // }
 
-export function useClaimCallback(account: string | null | undefined): {
-  claimCallback: () => Promise<string>
-} {
-  // get claim data for this account
-  const { library, chainId } = useActiveWeb3React()
-  const claimData = useUserClaims(account)
-
-  // used for popup summary
-  const unclaimedAmount: CurrencyAmount<Token> | undefined = useUserUnclaimedAmount(account)
-  const addTransaction = useTransactionAdder()
-  const distributorContract = useMerkleDistributorContract()
-
-  const claimCallback = async function () {
-    if (!claimData || !account || !library || !chainId || !distributorContract) return
-
-    // const args = [claimData.index, account, claimData.amount, claimData.proof]
-
-    // TODO: Reduce Claimings into a bunch of arrays with all the claimings
-    // const args = claimData.reduce(...)
-    const args: string[] = []
-
-    return distributorContract.estimateGas['claim'](...args, {}).then((estimatedGasLimit) => {
-      return distributorContract
-        .claim(...args, { value: null, gasLimit: calculateGasMargin(chainId, estimatedGasLimit) })
-        .then((response: TransactionResponse) => {
-          addTransaction({
-            hash: response.hash,
-            summary: `Claimed ${unclaimedAmount?.toSignificant(4)} CoW`,
-            claim: { recipient: account },
-          })
-          return response.hash
-        })
-    })
-  }
-
-  return { claimCallback }
-}
+// export function useClaimCallback(account: string | null | undefined): {
+//   claimCallback: () => Promise<string>
+// } {
+//   // get claim data for this account
+//   const { library, chainId } = useActiveWeb3React()
+//   const claimData = useUserClaimData(account)
+//
+//   // used for popup summary
+//   const unclaimedAmount: CurrencyAmount<Token> | undefined = useUserUnclaimedAmount(account)
+//   const addTransaction = useTransactionAdder()
+//   const distributorContract = useMerkleDistributorContract()
+//
+//   const claimCallback = async function () {
+//     if (!claimData || !account || !library || !chainId || !distributorContract) return
+//
+//     const args = [claimData.index, account, claimData.amount, claimData.proof]
+//
+//     return distributorContract.estimateGas['claim'](...args, {}).then((estimatedGasLimit) => {
+//       return distributorContract
+//         .claim(...args, { value: null, gasLimit: calculateGasMargin(chainId, estimatedGasLimit) })
+//         .then((response: TransactionResponse) => {
+//           addTransaction(response, {
+//             summary: `Claimed ${unclaimedAmount?.toSignificant(4)} UNI`,
+//             claim: { recipient: account },
+//           })
+//           return response.hash
+//         })
+//     })
+//   }
+//
+//   return { claimCallback }
+// }
diff --git a/src/custom/state/claim/hooks/index.ts b/src/custom/state/claim/hooks/index.ts
index b8d58d9b8..947626264 100644
--- a/src/custom/state/claim/hooks/index.ts
+++ b/src/custom/state/claim/hooks/index.ts
@@ -1,25 +1,35 @@
-import { useMemo } from 'react'
+import { useCallback, useMemo } from 'react'
 import JSBI from 'jsbi'
 import { CurrencyAmount, Token } from '@uniswap/sdk-core'
+import { TransactionResponse } from '@ethersproject/providers'
+
+import { VCow as VCowType } from 'abis/types'
 
-import { useUserClaims } from 'state/claim/hooks/hooksMod'
 import { useVCowContract } from 'hooks/useContract'
-import { useSingleContractMultipleData } from 'state/multicall/hooks'
 import { useActiveWeb3React } from 'hooks/web3'
+import { useSingleContractMultipleData } from 'state/multicall/hooks'
+import { useTransactionAdder } from 'state/enhancedTransactions/hooks'
+
 import { V_COW } from 'constants/tokens'
 
+import { formatSmart } from 'utils/format'
+import { calculateGasMargin } from 'utils/calculateGasMargin'
+
+import { useUserClaims } from 'state/claim/hooks/hooksMod'
+
 export * from './hooksMod'
 
-export type ClaimType =
-  | 'Airdrop' // free, no vesting, can be available on both mainnet and gchain
-  | 'Team' // free, with vesting, only on mainnet
-  | 'Advisor' // free, with vesting, only on mainnet
-  | 'GnoOption' // paid, with vesting, must use GNO, can be available on both mainnet and gchain
-  | 'UserOption' // paid, with vesting, must use Native currency, can be available on both mainnet and gchain
-  | 'Investor' // paid, with vesting, must use USDC, only on mainnet
+export const enum ClaimType {
+  Airdrop, // free, no vesting, can be available on both mainnet and gchain
+  GnoOption, // paid, with vesting, must use GNO, can be available on both mainnet and gchain
+  UserOption, // paid, with vesting, must use Native currency, can be available on both mainnet and gchain
+  Investor, // paid, with vesting, must use USDC, only on mainnet
+  Team, // free, with vesting, only on mainnet
+  Advisor, // free, with vesting, only on mainnet
+}
 
-export const FREE_CLAIM_TYPES: ClaimType[] = ['Airdrop', 'Team', 'Advisor']
-export const PAID_CLAIM_TYPES: ClaimType[] = ['GnoOption', 'UserOption', 'Investor']
+export const FREE_CLAIM_TYPES: ClaimType[] = [ClaimType.Airdrop, ClaimType.Team, ClaimType.Advisor]
+export const PAID_CLAIM_TYPES: ClaimType[] = [ClaimType.GnoOption, ClaimType.UserOption, ClaimType.Investor]
 
 export interface UserClaimData {
   index: number
@@ -28,6 +38,18 @@ export interface UserClaimData {
   type: ClaimType
 }
 
+export interface ClaimInput {
+  /**
+   * The index of the claim
+   */
+  index: number
+  /**
+   * The amount of the claim. Optional
+   * If not present, will claim the full amount
+   */
+  amount?: string
+}
+
 type Account = string | null | undefined
 
 export type UserClaims = UserClaimData[]
@@ -94,3 +116,202 @@ export function useUserUnclaimedAmount(account: string | null | undefined): Curr
 
   return CurrencyAmount.fromRawAmount(vCow, JSBI.BigInt(totalAmount))
 }
+
+/**
+ * Hook that returns the claimCallback
+ *
+ * Different from the original version, the returned callback takes as input a list of ClaimInputs,
+ * which is an object of the claim index and the amount being claimed.
+ *
+ * @param account
+ */
+export function useClaimCallback(account: string | null | undefined): {
+  claimCallback: (claimInputs: ClaimInput[]) => Promise<string | undefined>
+} {
+  // get claim data for given account
+  const { chainId, account: connectedAccount } = useActiveWeb3React()
+  const claims = useUserAvailableClaims(account)
+  const vCowContract = useVCowContract()
+
+  // used for popup summary
+  const addTransaction = useTransactionAdder()
+  const vCowToken = chainId ? V_COW[chainId] : undefined
+
+  const claimCallback = useCallback(
+    async function (claimInput: ClaimInput[]) {
+      if (
+        claims.length === 0 ||
+        claimInput.length === 0 ||
+        !account ||
+        !connectedAccount ||
+        !chainId ||
+        !vCowContract ||
+        !vCowToken
+      ) {
+        throw new Error("Not initialized, can't claim")
+      }
+
+      const { args, totalClaimedAmount } = _getClaimManyArgs({ claimInput, claims, account, connectedAccount })
+
+      if (!args) {
+        throw new Error('There were no valid claims selected')
+      }
+
+      const vCowAmount = CurrencyAmount.fromRawAmount(vCowToken, totalClaimedAmount)
+
+      return vCowContract.estimateGas['claimMany'](...args).then((estimatedGas) => {
+        // Last item in the array contains the call overrides
+        args[args.length - 1] = {
+          ...args[args.length - 1], // add back whatever is already there
+          from: connectedAccount, // add the `from` as the connected account
+          gasLimit: calculateGasMargin(chainId, estimatedGas), // add the estimated gas limit
+        }
+
+        return vCowContract.claimMany(...args).then((response: TransactionResponse) => {
+          addTransaction({
+            hash: response.hash,
+            summary: `Claimed ${formatSmart(vCowAmount)} vCOW`,
+            claim: { recipient: account },
+          })
+          return response.hash
+        })
+      })
+    },
+    [account, addTransaction, chainId, claims, connectedAccount, vCowContract, vCowToken]
+  )
+
+  return { claimCallback }
+}
+
+type GetClaimManyArgsParams = {
+  claimInput: ClaimInput[]
+  claims: UserClaims
+  account: string
+  connectedAccount: string
+}
+
+type ClaimManyFnArgs = Parameters<VCowType['claimMany']>
+
+type GetClaimManyArgsResult = {
+  args: ClaimManyFnArgs | undefined
+  totalClaimedAmount: JSBI
+}
+
+/**
+ * Prepares the list of args to be passed to vCow.claimMany function
+ */
+function _getClaimManyArgs({
+  claimInput,
+  claims,
+  account,
+  connectedAccount,
+}: GetClaimManyArgsParams): GetClaimManyArgsResult {
+  // Arrays are named according to contract parameters
+  // For more info, check https://github.com/gnosis/gp-v2-token/blob/main/src/contracts/mixins/MerkleDistributor.sol#L123
+  const indices: ClaimManyFnArgs[0] = []
+  const claimTypes: ClaimManyFnArgs[1] = []
+  const claimants: ClaimManyFnArgs[2] = []
+  const claimableAmounts: ClaimManyFnArgs[3] = []
+  const claimedAmounts: ClaimManyFnArgs[4] = []
+  const merkleProofs: ClaimManyFnArgs[5] = []
+  const sendEth: ClaimManyFnArgs[6] = []
+
+  let totalClaimedAmount = JSBI.BigInt('0')
+  let totalValue = JSBI.BigInt('0')
+
+  // Creating a map for faster access when checking what's being claimed
+  const claimsMap = claims.reduce<Record<number, UserClaimData>>((acc, claim) => {
+    acc[claim.index] = claim
+    return acc
+  }, {})
+
+  claimInput.forEach((input) => {
+    const claim = claimsMap[input.index]
+
+    // It can be that the index being passed is already claimed or belongs to another account
+    // Thus, it's possible that the returned `args` is "empty"
+    if (claim) {
+      indices.push(claim.index)
+      // always the same
+      claimants.push(account)
+      // always the max available
+      claimableAmounts.push(claim.amount)
+
+      claimTypes.push(claim.type)
+      // depends on claim type and whether claimed account == connected account
+      const claimedAmount = _getClaimedAmount({ claim, input, account, connectedAccount })
+      claimedAmounts.push(claimedAmount)
+
+      merkleProofs.push(claim.proof)
+      // only used on UserOption, equal to claimedAmount
+      const value = claim.type === ClaimType.UserOption ? claimedAmount : '0'
+      sendEth.push(value) // TODO: verify ETH balance < input.amount ?
+
+      // sum of claimedAmounts for the toast notification
+      totalClaimedAmount = JSBI.add(totalClaimedAmount, JSBI.BigInt(claimedAmount))
+      // sum of Native currency to be used on call options
+      totalValue = JSBI.add(totalValue, JSBI.BigInt(value))
+    }
+  })
+
+  const value = totalValue.toString() === '0' ? undefined : totalValue.toString()
+  const args: GetClaimManyArgsResult['args'] =
+    indices.length > 0
+      ? [indices, claimTypes, claimants, claimableAmounts, claimedAmounts, merkleProofs, sendEth, { value }]
+      : undefined
+
+  return {
+    args,
+    totalClaimedAmount,
+  }
+}
+
+type GetClaimedAmountParams = Pick<GetClaimManyArgsParams, 'account' | 'connectedAccount'> & {
+  claim: UserClaimData
+  input: ClaimInput
+}
+
+/**
+ * Gets the allowed claimed amount based on claim type and whether claiming account === connectedAccount
+ * Rules are same as the contract to prevent reverts
+ */
+function _getClaimedAmount({ claim, input, account, connectedAccount }: GetClaimedAmountParams): string {
+  if (
+    _isClaimForOther(account, connectedAccount, claim) ||
+    _isFreeClaim(claim) ||
+    _hasNoInputOrInputIsGreaterThanClaimAmount(input, claim) ||
+    // had to duplicate this check because I can't get TS to understand input.amount is not undefined in the else clause
+    !input.amount
+  ) {
+    // use full amount
+    return claim.amount
+  } else {
+    // use partial amount
+    return input.amount
+  }
+}
+
+/**
+ * Claim 100% when claiming investment for someone else
+ */
+function _isClaimForOther(account: string, connectedAccount: string, claim: UserClaimData) {
+  return account !== connectedAccount && claim.type in PAID_CLAIM_TYPES
+}
+
+/**
+ * Claim 100% when it's a free claim
+ */
+function _isFreeClaim(claim: UserClaimData) {
+  return claim.type in FREE_CLAIM_TYPES
+}
+
+/**
+ * Claim 100% when input is not set
+ * Claim 100% when input > amount
+ */
+function _hasNoInputOrInputIsGreaterThanClaimAmount(
+  input: ClaimInput,
+  claim: UserClaimData
+): input is Required<ClaimInput> {
+  return !input.amount || JSBI.greaterThan(JSBI.BigInt(input.amount), JSBI.BigInt(claim.amount))
+}