diff --git a/.prettierrc.json b/.prettierrc.json
new file mode 100644
index 0000000000..757fd64caa
--- /dev/null
+++ b/.prettierrc.json
@@ -0,0 +1,3 @@
+{
+  "trailingComma": "es5"
+}
diff --git a/packages/grant-explorer/src/features/round/ViewCartPage/RoundInCart.tsx b/packages/grant-explorer/src/features/round/ViewCartPage/RoundInCart.tsx
index 7576c76539..3e000d8116 100644
--- a/packages/grant-explorer/src/features/round/ViewCartPage/RoundInCart.tsx
+++ b/packages/grant-explorer/src/features/round/ViewCartPage/RoundInCart.tsx
@@ -45,13 +45,16 @@ export function RoundInCart(
       roundId: getAddress(round?.id ?? zeroAddress),
       chainId: props.roundCart[0].chainId,
       potentialVotes: props.roundCart.map((proj) => ({
+        roundId: getAddress(round?.id ?? zeroAddress),
+        projectId: proj.projectRegistryId,
         amount: parseUnits(
           proj.amount ?? "0",
           votingTokenForChain.decimal ?? 18
         ),
-        recipient: proj.recipient,
-        contributor: address ?? zeroAddress,
+        grantAddress: proj.recipient,
+        voter: address ?? zeroAddress,
         token: votingTokenForChain.address.toLowerCase(),
+        applicationId: proj.grantApplicationId,
       })),
     },
   ]);
diff --git a/packages/grant-explorer/src/features/round/ViewCartPage/SummaryContainer.tsx b/packages/grant-explorer/src/features/round/ViewCartPage/SummaryContainer.tsx
index 52be5e662c..ebd779e2a3 100644
--- a/packages/grant-explorer/src/features/round/ViewCartPage/SummaryContainer.tsx
+++ b/packages/grant-explorer/src/features/round/ViewCartPage/SummaryContainer.tsx
@@ -295,11 +295,14 @@ export function SummaryContainer() {
             proj.amount ?? "0",
             getVotingTokenForChain(parseChainId(proj.chainId)).decimal ?? 18
           ),
-          recipient: proj.recipient,
-          contributor: address as Address,
+          grantAddress: proj.recipient,
+          voter: address as Address,
           token: getVotingTokenForChain(
             parseChainId(proj.chainId)
           ).address.toLowerCase(),
+          projectId: proj.projectRegistryId,
+          applicationId: proj.grantApplicationId,
+          roundId: getAddress(round.id ?? ""),
         })),
       };
     }) ?? [];
diff --git a/packages/grant-explorer/src/hooks/matchingEstimate.ts b/packages/grant-explorer/src/hooks/matchingEstimate.ts
index 40967c3ed6..92250ea846 100644
--- a/packages/grant-explorer/src/hooks/matchingEstimate.ts
+++ b/packages/grant-explorer/src/hooks/matchingEstimate.ts
@@ -21,10 +21,13 @@ type UseMatchingEstimatesParams = {
   roundId: Address;
   chainId: ChainId;
   potentialVotes: {
-    contributor: string;
-    recipient: string;
-    amount: bigint;
+    projectId: string;
+    roundId: string;
+    applicationId: string;
     token: string;
+    voter: string;
+    grantAddress: string;
+    amount: bigint;
   }[];
 };
 
@@ -35,11 +38,19 @@ interface JSONObject {
 }
 
 function getMatchingEstimates(
-  params: UseMatchingEstimatesParams,
+  params: UseMatchingEstimatesParams
 ): Promise<MatchingEstimateResult[]> {
   const replacer = (_key: string, value: JSONValue) =>
     typeof value === "bigint" ? value.toString() : value;
 
+  /* The indexer wants just the application id number, not the whole application */
+  const fixedApplicationId = params.potentialVotes.map((vote) => ({
+    ...vote,
+    applicationId: vote.applicationId.includes("-")
+      ? vote.applicationId.split("-")[1]
+      : vote.applicationId,
+  }));
+
   return fetch(
     `${process.env.REACT_APP_ALLO_API_URL}/api/v1/chains/${params.chainId}/rounds/${params.roundId}/estimate`,
     {
@@ -47,9 +58,9 @@ function getMatchingEstimates(
         Accept: "application/json",
         "content-type": "application/json",
       },
-      body: JSON.stringify({ potentialVotes: params.potentialVotes }, replacer),
+      body: JSON.stringify({ potentialVotes: fixedApplicationId }, replacer),
       method: "POST",
-    },
+    }
   ).then((r) => r.json());
 }
 
@@ -59,12 +70,12 @@ function getMatchingEstimates(
  */
 export function useMatchingEstimates(params: UseMatchingEstimatesParams[]) {
   return useSWR(params, (params) =>
-    Promise.all(params.map((params) => getMatchingEstimates(params))),
+    Promise.all(params.map((params) => getMatchingEstimates(params)))
   );
 }
 
 export function matchingEstimatesToText(
-  matchingEstimates?: MatchingEstimateResult[][],
+  matchingEstimates?: MatchingEstimateResult[][]
 ) {
   return matchingEstimates
     ?.flat()