diff --git a/packages/signer/context-module/src/transaction/data/HttpTransactionDataSource.test.ts b/packages/signer/context-module/src/transaction/data/HttpTransactionDataSource.test.ts
index 20acdf5bb..83fc5bd68 100644
--- a/packages/signer/context-module/src/transaction/data/HttpTransactionDataSource.test.ts
+++ b/packages/signer/context-module/src/transaction/data/HttpTransactionDataSource.test.ts
@@ -302,7 +302,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: No generic descriptor for contract 0x0abc",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x0abc and selector 0x01ff",
         ),
       ),
     );
@@ -471,6 +471,50 @@ describe("HttpTransactionDataSource", () => {
     ]);
   });
 
+  it("Calldata on third array element", async () => {
+    // GIVEN
+    const calldataDTO = createCalldata(
+      transactionInfo,
+      [],
+      [fieldAmount, fieldDatetime, fieldUnit, fieldDuration],
+    );
+    jest
+      .spyOn(axios, "request")
+      .mockResolvedValue({ data: [{}, {}, calldataDTO] });
+
+    // WHEN
+    const result = await datasource.getTransactionDescriptors({
+      chainId: 1,
+      address: "0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9",
+      selector: "0x69328dec",
+    });
+
+    // THEN
+    expect(result.extract()).toEqual([
+      {
+        payload:
+          "0001000108000000000000000102147d2768de32b0b80b7a3454c06bdac94a69ddc7a9030469328dec04207d5e9ed0004b8035b164edd9d78c37415ad6b1d123be4943d0abd5a50035cae3050857697468647261770604416176650708416176652044414f081068747470733a2f2f616176652e636f6d0a045fc4ba9c81ff473045022100eb67599abfd9c7360b07599a2a2cb769c6e3f0f74e1e52444d788c8f577a16d20220402e92b0adbf97d890fa2f9654bc30c7bd70dacabe870f160e6842d9eb73d36f",
+        type: "transactionInfo",
+      },
+      {
+        type: "transactionFieldDescription",
+        payload: fieldAmount.descriptor,
+      },
+      {
+        type: "transactionFieldDescription",
+        payload: fieldDatetime.descriptor,
+      },
+      {
+        type: "transactionFieldDescription",
+        payload: fieldUnit.descriptor,
+      },
+      {
+        type: "transactionFieldDescription",
+        payload: fieldDuration.descriptor,
+      },
+    ]);
+  });
+
   it("Calldata without fields references and transaction info signature length % 2 different from 0", async () => {
     // GIVEN
     const newTransactionInfo: CalldataTransactionInfoV1 = {
@@ -549,7 +593,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -582,7 +626,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -608,7 +652,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -634,7 +678,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -669,7 +713,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -695,7 +739,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -728,7 +772,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -761,7 +805,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -800,7 +844,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
@@ -833,7 +877,7 @@ describe("HttpTransactionDataSource", () => {
     expect(result).toEqual(
       Left(
         new Error(
-          "[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
+          "[ContextModule] HttpTransactionDataSource: Invalid response for contract 0x7d2768de32b0b80b7a3454c06bdac94a69ddc7a9 and selector 0x69328dec",
         ),
       ),
     );
diff --git a/packages/signer/context-module/src/transaction/data/HttpTransactionDataSource.ts b/packages/signer/context-module/src/transaction/data/HttpTransactionDataSource.ts
index 290e9047f..de2c6dbcb 100644
--- a/packages/signer/context-module/src/transaction/data/HttpTransactionDataSource.ts
+++ b/packages/signer/context-module/src/transaction/data/HttpTransactionDataSource.ts
@@ -47,7 +47,7 @@ export class HttpTransactionDataSource implements TransactionDataSource {
   }: GetTransactionDescriptorsParams): Promise<
     Either<Error, ClearSignContextSuccess[]>
   > {
-    let calldata: CalldataDto | undefined;
+    let dto: CalldataDto[] | undefined;
     try {
       const response = await axios.request<CalldataDto[]>({
         method: "GET",
@@ -62,7 +62,7 @@ export class HttpTransactionDataSource implements TransactionDataSource {
           "X-Ledger-Client-Version": `context-module/${PACKAGE.version}`,
         },
       });
-      calldata = response.data?.[0];
+      dto = response.data;
     } catch (error) {
       return Left(
         new Error(
@@ -71,21 +71,7 @@ export class HttpTransactionDataSource implements TransactionDataSource {
       );
     }
 
-    if (!calldata) {
-      return Left(
-        new Error(
-          `[ContextModule] HttpTransactionDataSource: No generic descriptor for contract ${address}`,
-        ),
-      );
-    }
-
-    // Normalize the address and selector
-    address = address.toLowerCase();
-    selector = `0x${selector.slice(2).toLowerCase()}`;
-
-    const calldataDescriptor =
-      calldata.descriptors_calldata?.[address]?.[selector];
-    if (!calldataDescriptor) {
+    if (!Array.isArray(dto)) {
       return Left(
         new Error(
           `[ContextModule] HttpTransactionDataSource: Invalid response for contract ${address} and selector ${selector}`,
@@ -93,51 +79,62 @@ export class HttpTransactionDataSource implements TransactionDataSource {
       );
     }
 
-    if (
-      !this.isCalldataDescriptorV1(calldataDescriptor, this.config.cal.mode)
-    ) {
-      return Left(
-        new Error(
-          `[ContextModule] HttpTransactionDataSource: Failed to decode transaction descriptor for contract ${address} and selector ${selector}`,
-        ),
-      );
-    }
+    for (const calldata of dto) {
+      // Normalize the address and selector
+      address = address.toLowerCase();
+      selector = `0x${selector.slice(2).toLowerCase()}`;
+      const calldataDescriptor =
+        calldata.descriptors_calldata?.[address]?.[selector];
 
-    const infoData = calldataDescriptor.transaction_info.descriptor.data;
-    const infoSignature =
-      calldataDescriptor.transaction_info.descriptor.signatures[
-        this.config.cal.mode
-      ];
-    const info: ClearSignContextSuccess = {
-      type: ClearSignContextType.TRANSACTION_INFO,
-      payload: this.formatTransactionInfo(infoData, infoSignature),
-    };
-    const enums: ClearSignContextSuccess[] = [];
-    for (const [id, values] of Object.entries(calldataDescriptor.enums)) {
-      for (const [
-        value,
-        { data, signatures },
-      ] of Object.entries<CalldataTransactionDescriptor>(values)) {
-        enums.push({
-          type: ClearSignContextType.ENUM,
-          id: Number(id),
-          value: Number(value),
-          payload: this.formatTransactionInfo(
-            data,
-            signatures[this.config.cal.mode]!, // the enum is validated by isCalldataDescriptorV1
-          ),
-        });
+      if (
+        !calldataDescriptor ||
+        !this.isCalldataDescriptorV1(calldataDescriptor, this.config.cal.mode)
+      ) {
+        continue;
       }
+
+      const infoData = calldataDescriptor.transaction_info.descriptor.data;
+      const infoSignature =
+        calldataDescriptor.transaction_info.descriptor.signatures[
+          this.config.cal.mode
+        ];
+      const info: ClearSignContextSuccess = {
+        type: ClearSignContextType.TRANSACTION_INFO,
+        payload: this.formatTransactionInfo(infoData, infoSignature),
+      };
+      const enums: ClearSignContextSuccess[] = [];
+      for (const [id, values] of Object.entries(calldataDescriptor.enums)) {
+        for (const [
+          value,
+          { data, signatures },
+        ] of Object.entries<CalldataTransactionDescriptor>(values)) {
+          enums.push({
+            type: ClearSignContextType.ENUM,
+            id: Number(id),
+            value: Number(value),
+            payload: this.formatTransactionInfo(
+              data,
+              signatures[this.config.cal.mode]!, // the enum is validated by isCalldataDescriptorV1
+            ),
+          });
+        }
+      }
+
+      const fields: ClearSignContextSuccess[] = calldataDescriptor.fields.map(
+        (field) => ({
+          type: ClearSignContextType.TRANSACTION_FIELD_DESCRIPTION,
+          payload: field.descriptor,
+          reference: this.getReference(field.param),
+        }),
+      );
+      return Right([info, ...enums, ...fields]);
     }
 
-    const fields: ClearSignContextSuccess[] = calldataDescriptor.fields.map(
-      (field) => ({
-        type: ClearSignContextType.TRANSACTION_FIELD_DESCRIPTION,
-        payload: field.descriptor,
-        reference: this.getReference(field.param),
-      }),
+    return Left(
+      new Error(
+        `[ContextModule] HttpTransactionDataSource: Invalid response for contract ${address} and selector ${selector}`,
+      ),
     );
-    return Right([info, ...enums, ...fields]);
   }
 
   private formatTransactionInfo(