diff --git a/app/routes/api.llmcall.test.ts b/app/routes/api.llmcall.test.ts
new file mode 100644
index 000000000..c5320a74a
--- /dev/null
+++ b/app/routes/api.llmcall.test.ts
@@ -0,0 +1,64 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { LLMManager } from '~/lib/modules/llm/manager';
+import { getModelList } from './api.llmcall';
+import type { ModelInfo } from '~/lib/modules/llm/types';
+import type { BaseProvider } from '~/lib/modules/llm/base-provider';
+
+vi.mock('~/utils/constants', () => ({
+  PROVIDER_LIST: [],
+  DEFAULT_PROVIDER: {},
+}));
+
+vi.mock('~/lib/modules/llm/manager', () => ({
+  LLMManager: {
+    getInstance: vi.fn(),
+  },
+}));
+
+describe('getModelList', () => {
+  const mockModelList: ModelInfo[] = [
+    {
+      name: 'model-1',
+      label: 'Model 1',
+      provider: 'test-provider',
+      maxTokenAllowed: 1000,
+    },
+  ];
+
+  // Create full mock implementation of LLMManager
+  const mockLLMManager = {
+    _providers: new Map<string, BaseProvider>(),
+    _modelList: [] as ModelInfo[],
+    _env: {},
+    env: {},
+    _registerProvidersFromDirectory: vi.fn(),
+    registerProvider: vi.fn(),
+    getProvider: vi.fn(),
+    getAllProviders: vi.fn().mockReturnValue([]),
+    getModelList: vi.fn(),
+    updateModelList: vi.fn().mockResolvedValue(mockModelList),
+    getStaticModelList: vi.fn(),
+    getModelListFromProvider: vi.fn(),
+    getStaticModelListFromProvider: vi.fn(),
+    getDefaultProvider: vi.fn(),
+  } as unknown as LLMManager;
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    vi.mocked(LLMManager.getInstance).mockReturnValue(mockLLMManager);
+  });
+
+  it('should return model list from LLMManager', async () => {
+    const options = {
+      apiKeys: { 'test-provider': 'test-key' },
+      providerSettings: { 'test-provider': { enabled: true } },
+      serverEnv: { TEST_ENV: 'test' },
+    };
+
+    const result = await getModelList(options);
+
+    expect(LLMManager.getInstance).toHaveBeenCalledWith(import.meta.env);
+    expect(mockLLMManager.updateModelList).toHaveBeenCalledWith(options);
+    expect(result).toEqual(mockModelList);
+  });
+});
diff --git a/app/routes/api.llmcall.ts b/app/routes/api.llmcall.ts
index 5dd4c098f..891dd78c7 100644
--- a/app/routes/api.llmcall.ts
+++ b/app/routes/api.llmcall.ts
@@ -147,3 +147,6 @@ async function llmCallAction({ context, request }: ActionFunctionArgs) {
     }
   }
 }
+
+
+export { getModelList };
\ No newline at end of file