diff --git a/src/blockchain/test-library/CosmosApiTestBuilder.ts b/src/blockchain/test-library/CosmosApiTestBuilder.ts
index 74f5b56..d9c06e1 100644
--- a/src/blockchain/test-library/CosmosApiTestBuilder.ts
+++ b/src/blockchain/test-library/CosmosApiTestBuilder.ts
@@ -219,7 +219,7 @@ export class CosmosApiTestBuilder {
 
         try {
             const detailResponse = await this.consensusClient.getStakingValidator(operatorAddr);
-            const detail = detailResponse.validator;
+            const detail = this.extractValidatorFromResponse(detailResponse);
             expect(detail).to.have.property('operator_address');
             expect(detail).to.have.property('tokens');
             expect(detail).to.have.property('status');
@@ -356,6 +356,24 @@ export class CosmosApiTestBuilder {
         return [];
     }
 
+    /**
+     * Helper method: Extract single validator information from response
+     */
+    private extractValidatorFromResponse(response: any): any {
+        if (response?.code === 200 && response?.msg?.validator) {
+            return response.msg.validator;
+        } else if (response?.code === 200 && response?.msg?.operator_address) {
+            return response.msg;
+        } else if (response?.validator) {
+            return response.validator;
+        } else if (response?.result?.validator) {
+            return response.result.validator;
+        } else if (response?.operator_address) {
+            return response;
+        }
+        return response;
+    }
+
     /**
      * Helper method: Extract parameter information from response
      */
diff --git a/src/blockchain/test-library/__tests__/CosmosApiTestBuilder.test.ts b/src/blockchain/test-library/__tests__/CosmosApiTestBuilder.test.ts
new file mode 100644
index 0000000..557cce5
--- /dev/null
+++ b/src/blockchain/test-library/__tests__/CosmosApiTestBuilder.test.ts
@@ -0,0 +1,70 @@
+import { expect } from 'chai';
+import { CosmosApiTestBuilder } from '../CosmosApiTestBuilder';
+
+describe('CosmosApiTestBuilder', () => {
+    it('accepts validator detail wrapped in code/msg responses', async () => {
+        const validator = {
+            operator_address: '0x00a842dbd3d11176b4868dd753a552b8919d5a63',
+            tokens: '1000000',
+            status: 3,
+            description: {
+                moniker: '0x0FC41199CE588948861A8DA86D725A5A073AE91A',
+            },
+        };
+
+        const consensusClient = {
+            restEndpoint: 'http://localhost:21317',
+            rpcEndpoint: 'http://localhost:36657',
+            getStakingValidators() {
+                return {
+                    code: 200,
+                    msg: {
+                        validators: [validator],
+                    },
+                };
+            },
+            getStakingValidator() {
+                return {
+                    code: 200,
+                    msg: {
+                        validator,
+                    },
+                };
+            },
+            getStakingParams() {
+                return {
+                    params: {
+                        bond_denom: 'stake',
+                        unbonding_time: '10000000000',
+                        max_validators: 32,
+                    },
+                };
+            },
+            getStakingPool() {
+                return {
+                    pool: {
+                        bonded_tokens: '4000000',
+                        not_bonded_tokens: '0',
+                    },
+                };
+            },
+        };
+
+        const blockchain = {
+            chainId: 1513,
+            getDefaultConsensusLayerClient() {
+                return consensusClient;
+            },
+        } as any;
+
+        const builder = new CosmosApiTestBuilder(blockchain, ['staking', 'staking_delegation']);
+
+        await builder.testStakingModule();
+        await builder.testValidatorDetail();
+
+        const result = builder.getTestResult('staking_validator_detail');
+        expect(result.success).to.equal(true);
+        expect(result.data.operator_address).to.equal(validator.operator_address);
+        expect(result.data.tokens).to.equal(validator.tokens);
+    });
+});