diff --git a/.github/workflows/publish-node-sdk.yml b/.github/workflows/publish-node-sdk.yml
index c401a92..47976c5 100644
--- a/.github/workflows/publish-node-sdk.yml
+++ b/.github/workflows/publish-node-sdk.yml
@@ -13,6 +13,9 @@ jobs:
 
       - name: Set up Node.js
         uses: actions/setup-node@v4
+        with:
+          registry-url: 'https://registry.npmjs.org'
+          node-version: '20'
 
       - name: Enable corepack
         run: corepack enable pnpm
diff --git a/tests/e2e/project.test.ts b/tests/e2e/project.test.ts
new file mode 100644
index 0000000..b4c5119
--- /dev/null
+++ b/tests/e2e/project.test.ts
@@ -0,0 +1,179 @@
+import { createTestClient, randomizeName, wait } from "../helpers/test-utils";
+import { e2eConfig } from "./config";
+import { Project, Cycle, Module, WorkItem } from "../../src/models";
+
+describe("End to End Project Test", () => {
+  // Shared state across tests
+  let client: ReturnType<typeof createTestClient>;
+  let userId: string;
+  let project: Project;
+  let cycle: Cycle;
+  let module: Module;
+  let workItem1: WorkItem;
+  let workItem2: WorkItem;
+  let workItem3: WorkItem;
+
+  beforeAll(async () => {
+    // Initialize client and create prerequisites for all tests
+    client = createTestClient();
+
+    // Get current user - needed for assignees and cycle owners
+    const me = await client.users.me();
+    userId = me.id!;
+
+    // Create project - all tests depend on this
+    const projectName = randomizeName();
+    project = await client.projects.create(e2eConfig.workspaceSlug, {
+      name: projectName,
+      id: projectName.slice(0, 5).toUpperCase(),
+    });
+  });
+
+  it("should create and list cycles", async () => {
+    const cycleName = randomizeName("Test Cycle");
+    cycle = await client.cycles.create(e2eConfig.workspaceSlug, project.id, {
+      name: cycleName,
+      description: "Test Cycle Description",
+      // YYYY-MM-DD format
+      start_date: new Date().toISOString().split("T")[0],
+      // YYYY-MM-DD format
+      end_date: new Date(new Date().setDate(new Date().getDate() + 14)).toISOString().split("T")[0],
+      owned_by: userId,
+      project_id: project.id,
+    });
+
+    expect(cycle).toBeDefined();
+    expect(cycle.id).toBeDefined();
+    expect(cycle.name).toBe(cycleName);
+
+    const cycles = await client.cycles.list(e2eConfig.workspaceSlug, project.id);
+    expect(cycles.results.length).toBeGreaterThan(0);
+    expect(cycles.results.find((c) => c.name === cycle.name)).toBeDefined();
+  });
+
+  it("should create and list modules", async () => {
+    const moduleName = randomizeName("Test Module");
+    module = await client.modules.create(e2eConfig.workspaceSlug, project.id, {
+      name: moduleName,
+      description: "Test Module Description",
+    });
+
+    expect(module).toBeDefined();
+    expect(module.id).toBeDefined();
+    expect(module.name).toBe(moduleName);
+
+    const modules = await client.modules.list(e2eConfig.workspaceSlug, project.id);
+    expect(modules.results.length).toBeGreaterThan(0);
+    expect(modules.results.find((m) => m.name === module.name)).toBeDefined();
+  });
+
+  it("should create work items with assignees", async () => {
+    workItem1 = await client.workItems.create(e2eConfig.workspaceSlug, project.id, {
+      name: randomizeName("Test Work Item 1"),
+      description_html: "<p>Test Work Item 1 Description</p>",
+      assignees: [userId],
+    });
+
+    expect(workItem1).toBeDefined();
+    expect(workItem1.id).toBeDefined();
+    expect(workItem1.assignees).toBeDefined();
+
+    workItem2 = await client.workItems.create(e2eConfig.workspaceSlug, project.id, {
+      name: randomizeName("Test Work Item 2"),
+      description_html: "<p>Test Work Item 2 Description</p>",
+      assignees: [userId],
+    });
+
+    expect(workItem2).toBeDefined();
+    expect(workItem2.id).toBeDefined();
+    expect(workItem2.assignees).toHaveLength(1);
+
+    const workItems = await client.workItems.list(e2eConfig.workspaceSlug, project.id);
+    expect(workItems.results.length).toBeGreaterThan(0);
+  });
+
+  it("should create work item relations", async () => {
+    await client.workItems.relations.create(e2eConfig.workspaceSlug, project.id, workItem1.id, {
+      relation_type: "relates_to",
+      issues: [workItem2.id],
+    });
+
+    const relations = await client.workItems.relations.list(e2eConfig.workspaceSlug, project.id, workItem1.id);
+    expect(relations.relates_to).toBeDefined();
+    expect(relations.relates_to[0]).toBe(workItem2.id);
+  });
+
+  it("should create work item with parent relationship", async () => {
+    workItem3 = await client.workItems.create(e2eConfig.workspaceSlug, project.id, {
+      name: randomizeName("Test Work Item 3"),
+      description_html: "<p>Test Work Item 3 Description</p>",
+      assignees: [userId],
+      parent: workItem1.id,
+    });
+
+    expect(workItem3).toBeDefined();
+    expect(workItem3.id).toBeDefined();
+
+    const workItem3Details = await client.workItems.retrieve(e2eConfig.workspaceSlug, project.id, workItem3.id);
+    expect(workItem3Details.parent).toBe(workItem1.id);
+  });
+
+  it("should add work items to cycle", async () => {
+    await client.cycles.addWorkItemsToCycle(e2eConfig.workspaceSlug, project.id, cycle.id, [
+      workItem1.id,
+      workItem2.id,
+    ]);
+
+    const workItemsInCycle = await client.cycles.listWorkItemsInCycle(e2eConfig.workspaceSlug, project.id, cycle.id);
+    expect(workItemsInCycle.results.length).toBeGreaterThan(0);
+    expect(workItemsInCycle.results.find((w) => w.id === workItem1.id)).toBeDefined();
+    expect(workItemsInCycle.results.find((w) => w.id === workItem2.id)).toBeDefined();
+  });
+
+  it("should add work items to module", async () => {
+    await client.modules.addWorkItemsToModule(e2eConfig.workspaceSlug, project.id, module.id, [
+      workItem1.id,
+      workItem2.id,
+    ]);
+
+    const workItemsInModule = await client.modules.listWorkItemsInModule(
+      e2eConfig.workspaceSlug,
+      project.id,
+      module.id
+    );
+    expect(workItemsInModule.results.length).toBeGreaterThan(0);
+    expect(workItemsInModule.results.find((w) => w.id === workItem1.id)).toBeDefined();
+    expect(workItemsInModule.results.find((w) => w.id === workItem2.id)).toBeDefined();
+  });
+
+  it("should remove work item from module", async () => {
+    await client.modules.removeWorkItemFromModule(e2eConfig.workspaceSlug, project.id, module.id, workItem1.id);
+
+    const workItemsInModuleAfterRemoval = await client.modules.listWorkItemsInModule(
+      e2eConfig.workspaceSlug,
+      project.id,
+      module.id
+    );
+    expect(workItemsInModuleAfterRemoval.results.length).toBe(1);
+    expect(workItemsInModuleAfterRemoval.results.find((w) => w.id === workItem2.id)).toBeDefined();
+    expect(workItemsInModuleAfterRemoval.results.find((w) => w.id === workItem1.id)).toBeUndefined();
+  });
+
+  it("should remove work item from cycle", async () => {
+    await client.cycles.removeWorkItemFromCycle(e2eConfig.workspaceSlug, project.id, cycle.id, workItem1.id);
+
+    const workItemsInCycleAfterRemoval = await client.cycles.listWorkItemsInCycle(
+      e2eConfig.workspaceSlug,
+      project.id,
+      cycle.id
+    );
+    expect(workItemsInCycleAfterRemoval.results.length).toBe(1);
+    expect(workItemsInCycleAfterRemoval.results.find((w) => w.id === workItem2.id)).toBeDefined();
+    expect(workItemsInCycleAfterRemoval.results.find((w) => w.id === workItem1.id)).toBeUndefined();
+  });
+
+  afterAll(async () => {
+    console.log("Deleting project: ", project.name);
+    await client.projects.delete(e2eConfig.workspaceSlug, project.id);
+  });
+});