diff --git a/sdks/node/src/__tests__/SubscriptionItems.spec.ts b/sdks/node/src/__tests__/SubscriptionItems.spec.ts
new file mode 100644
index 0000000..9473bcf
--- /dev/null
+++ b/sdks/node/src/__tests__/SubscriptionItems.spec.ts
@@ -0,0 +1,101 @@
+import { SubscriptionItems } from '../resources/SubscriptionItems';
+import { HttpClient } from '../HttpClient';
+
+describe('SubscriptionItems Resource', () => {
+  let client: jest.Mocked<HttpClient>;
+  let subscriptionItems: SubscriptionItems;
+
+  beforeEach(() => {
+    client = {
+      Get: jest.fn(),
+      Post: jest.fn(),
+      Delete: jest.fn(),
+    } as unknown as jest.Mocked<HttpClient>;
+    subscriptionItems = new SubscriptionItems(client);
+  });
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  describe('create', () => {
+    it('should send a POST request to /subscription_items with params', async () => {
+      const params = {
+        subscription: 'sub_123',
+        price: 'price_123',
+        quantity: 2,
+      };
+
+      await subscriptionItems.create(params);
+
+      expect(client.Post).toHaveBeenCalledWith('/subscription_items', params);
+    });
+  });
+
+  describe('update', () => {
+    it('should send a POST request to /subscription_items/:id with params', async () => {
+      const params = {
+        quantity: 3,
+      };
+
+      await subscriptionItems.update('si_123', params);
+
+      expect(client.Post).toHaveBeenCalledWith(
+        '/subscription_items/si_123',
+        params
+      );
+    });
+  });
+
+  describe('retrieve', () => {
+    it('should send a GET request to /subscription_items/:id', async () => {
+      await subscriptionItems.retrieve('si_123');
+
+      expect(client.Get).toHaveBeenCalledWith('/subscription_items/si_123', {});
+    });
+
+    it('should pass expand params if provided', async () => {
+      await subscriptionItems.retrieve('si_123', { expand: ['price'] });
+
+      expect(client.Get).toHaveBeenCalledWith('/subscription_items/si_123', {
+        expand: ['price'],
+      });
+    });
+  });
+
+  describe('list', () => {
+    it('should send a GET request to /subscription_items with query params', async () => {
+      await subscriptionItems.list({
+        subscription: 'sub_123',
+        limit: 5,
+        starting_after: 'si_456',
+      });
+
+      expect(client.Get).toHaveBeenCalledWith('/subscription_items', {
+        subscription: 'sub_123',
+        limit: 5,
+        starting_after: 'si_456',
+        ending_before: undefined,
+      });
+    });
+  });
+
+  describe('del', () => {
+    it('should send a DELETE request to /subscription_items/:id', async () => {
+      await subscriptionItems.del('si_123');
+
+      expect(client.Delete).toHaveBeenCalledWith(
+        '/subscription_items/si_123',
+        {}
+      );
+    });
+
+    it('should send optional proration params if provided', async () => {
+      await subscriptionItems.del('si_123', { clear_usage: true });
+
+      expect(client.Delete).toHaveBeenCalledWith('/subscription_items/si_123', {
+        clear_usage: true,
+      });
+    });
+  });
+});
diff --git a/sdks/node/src/generated/Inputs.ts b/sdks/node/src/generated/Inputs.ts
index d418f83..1247205 100644
--- a/sdks/node/src/generated/Inputs.ts
+++ b/sdks/node/src/generated/Inputs.ts
@@ -1711,6 +1711,48 @@ export type CreateSubscriptionInput = {
   expand?: string[] | undefined;
 };
 
+export type CreateSubscriptionItemInput = {
+  subscription: string;
+  billing_thresholds?: '' | { usage_gte: number } | undefined;
+  discounts?:
+    | {
+        coupon?: string | undefined;
+        discount?: string | undefined;
+        promotion_code?: string | undefined;
+      }[]
+    | undefined;
+  metadata?: Record<string, string> | undefined;
+  payment_behavior?:
+    | 'allow_incomplete'
+    | 'default_incomplete'
+    | 'error_if_incomplete'
+    | 'pending_if_incomplete'
+    | undefined;
+  price?: string | undefined;
+  price_data?:
+    | {
+        currency: string;
+        product: string;
+        recurring: {
+          interval: 'hour' | 'day' | 'week' | 'month' | 'year';
+          interval_count?: number | undefined;
+        };
+        tax_behavior?: 'inclusive' | 'exclusive' | 'unspecified' | undefined;
+        unit_amount?: number | undefined;
+        unit_amount_decimal?: string | undefined;
+      }
+    | undefined;
+  proration_behavior?:
+    | 'none'
+    | 'create_prorations'
+    | 'always_invoice'
+    | undefined;
+  proration_date?: number | undefined;
+  quantity?: number | undefined;
+  tax_rates?: string[] | undefined;
+  expand?: string[] | undefined;
+};
+
 export type CreateTopUpInput = {
   amount: number;
   currency: string;
@@ -1741,6 +1783,22 @@ export type CreateWebhookEndpointInput = {
   metadata?: Record<string, string> | undefined;
 };
 
+export type DeleteSubscriptionItemInput = {
+  clear_usage?: boolean | undefined;
+  payment_behavior?:
+    | 'allow_incomplete'
+    | 'default_incomplete'
+    | 'error_if_incomplete'
+    | 'pending_if_incomplete'
+    | undefined;
+  proration_behavior?:
+    | 'none'
+    | 'create_prorations'
+    | 'always_invoice'
+    | undefined;
+  proration_date?: number | undefined;
+};
+
 export type ExpireCheckoutSessionInput = Record<string, never>;
 
 export type FinalizeInvoiceInput = {
@@ -2100,6 +2158,14 @@ export type ListProductsInput = {
   expand?: string[] | undefined;
 };
 
+export type ListSubscriptionItemsInput = {
+  subscription: string;
+  ending_before?: string | undefined;
+  limit?: number | undefined;
+  starting_after?: string | undefined;
+  expand?: string[] | undefined;
+};
+
 export type ListSubscriptionsInput = {
   automatic_tax?: { enabled: boolean } | undefined;
   collection_method?: 'charge_automatically' | 'send_invoice' | undefined;
@@ -2250,6 +2316,8 @@ export type RetrieveProductInput = { expand?: string[] | undefined };
 
 export type RetrieveSubscriptionInput = { expand?: string[] | undefined };
 
+export type RetrieveSubscriptionItemInput = { expand?: string[] | undefined };
+
 export type RunBillingForPlatformInput = { batch_size?: number | undefined };
 
 export type UpdateAccountInput = {
@@ -3418,6 +3486,49 @@ export type UpdateSubscriptionInput = {
   expand?: string[] | undefined;
 };
 
+export type UpdateSubscriptionItemInput = {
+  billing_thresholds?: '' | { usage_gte: number } | undefined;
+  discounts?:
+    | ''
+    | {
+        coupon?: string | undefined;
+        discount?: string | undefined;
+        promotion_code?: string | undefined;
+      }[]
+    | undefined;
+  metadata?: Record<string, string> | undefined;
+  off_session?: boolean | undefined;
+  payment_behavior?:
+    | 'allow_incomplete'
+    | 'default_incomplete'
+    | 'error_if_incomplete'
+    | 'pending_if_incomplete'
+    | undefined;
+  price?: string | undefined;
+  price_data?:
+    | {
+        currency: string;
+        product: string;
+        recurring: {
+          interval: 'hour' | 'day' | 'week' | 'month' | 'year';
+          interval_count?: number | undefined;
+        };
+        tax_behavior?: 'inclusive' | 'exclusive' | 'unspecified' | undefined;
+        unit_amount?: number | undefined;
+        unit_amount_decimal?: string | undefined;
+      }
+    | undefined;
+  proration_behavior?:
+    | 'none'
+    | 'create_prorations'
+    | 'always_invoice'
+    | undefined;
+  proration_date?: number | undefined;
+  quantity?: number | undefined;
+  tax_rates?: '' | string[] | undefined;
+  expand?: string[] | undefined;
+};
+
 export type UpdateTopUpInput = {
   description?: string | undefined;
   metadata?: Record<string, string> | undefined;
diff --git a/sdks/node/src/index.ts b/sdks/node/src/index.ts
index 811b296..50c67ef 100644
--- a/sdks/node/src/index.ts
+++ b/sdks/node/src/index.ts
@@ -18,6 +18,7 @@ import { Payouts } from './resources/Payouts';
 import { Prices } from './resources/Prices';
 import { Products } from './resources/Products';
 import { Subscriptions } from './resources/Subscriptions';
+import { SubscriptionItems } from './resources/SubscriptionItems';
 import { TopUps } from './resources/TopUps';
 import { Transfers } from './resources/Transfers';
 import { WebhookEndpoints } from './resources/WebhookEndpoints';
@@ -109,6 +110,9 @@ export class Zoneless {
   /** Subscriptions API resource */
   readonly subscriptions: Subscriptions;
 
+  /** SubscriptionItems API resource */
+  readonly subscriptionItems: SubscriptionItems;
+
   /** TopUps API resource */
   readonly topups: TopUps;
 
@@ -162,6 +166,7 @@ export class Zoneless {
     this.prices = new Prices(this.client);
     this.products = new Products(this.client);
     this.subscriptions = new Subscriptions(this.client);
+    this.subscriptionItems = new SubscriptionItems(this.client);
     this.topups = new TopUps(this.client);
     this.transfers = new Transfers(this.client);
     this.webhookEndpoints = new WebhookEndpoints(this.client);
diff --git a/sdks/node/src/resources/SubscriptionItems.ts b/sdks/node/src/resources/SubscriptionItems.ts
new file mode 100644
index 0000000..7572539
--- /dev/null
+++ b/sdks/node/src/resources/SubscriptionItems.ts
@@ -0,0 +1,80 @@
+import { BaseResource } from './Base';
+import {
+  SubscriptionItem,
+  SubscriptionItemDeleted,
+  ListResponse,
+} from '@zoneless/shared-types';
+import type {
+  CreateSubscriptionItemInput,
+  ListSubscriptionItemsInput,
+  RetrieveSubscriptionItemInput,
+  UpdateSubscriptionItemInput,
+  DeleteSubscriptionItemInput,
+} from '../generated/Inputs';
+
+/**
+ * @see https://zoneless.com/docs/subscriptionitems
+ */
+export class SubscriptionItems extends BaseResource {
+  /** @see https://zoneless.com/docs/subscriptionitems/create */
+  async create(params: CreateSubscriptionItemInput): Promise<SubscriptionItem> {
+    return this.client.Post<SubscriptionItem>('/subscription_items', params);
+  }
+
+  /** @see https://zoneless.com/docs/subscriptionitems/update */
+  async update(
+    id: string,
+    params: UpdateSubscriptionItemInput
+  ): Promise<SubscriptionItem> {
+    return this.client.Post<SubscriptionItem>(
+      `/subscription_items/${id}`,
+      params
+    );
+  }
+
+  /** @see https://zoneless.com/docs/subscriptionitems/retrieve */
+  async retrieve(
+    id: string,
+    params: RetrieveSubscriptionItemInput = {}
+  ): Promise<SubscriptionItem> {
+    return this.client.Get<SubscriptionItem>(
+      `/subscription_items/${id}`,
+      params
+    );
+  }
+
+  /** @see https://zoneless.com/docs/subscriptionitems/list */
+  async list(
+    params: ListSubscriptionItemsInput
+  ): Promise<ListResponse<SubscriptionItem>> {
+    return this.client.Get<ListResponse<SubscriptionItem>>(
+      '/subscription_items',
+      this.BuildQuery(params)
+    );
+  }
+
+  /**
+   * Deletes a subscription item.
+   * @see https://zoneless.com/docs/subscriptionitems/delete
+   */
+  async del(
+    id: string,
+    params: DeleteSubscriptionItemInput = {}
+  ): Promise<SubscriptionItemDeleted> {
+    return this.client.Delete<SubscriptionItemDeleted>(
+      `/subscription_items/${id}`,
+      params
+    );
+  }
+
+  private BuildQuery(
+    params: ListSubscriptionItemsInput
+  ): Record<string, string | number | boolean | undefined> {
+    return {
+      subscription: params.subscription,
+      limit: params.limit,
+      starting_after: params.starting_after,
+      ending_before: params.ending_before,
+    };
+  }
+}
diff --git a/sdks/node/src/resources/index.ts b/sdks/node/src/resources/index.ts
index 5e0bb26..bf9d6d7 100644
--- a/sdks/node/src/resources/index.ts
+++ b/sdks/node/src/resources/index.ts
@@ -24,6 +24,7 @@ export { Products } from './Products';
 export { Checkout } from './Checkout';
 export { CheckoutSessions } from './CheckoutSessions';
 export { Subscriptions } from './Subscriptions';
+export { SubscriptionItems } from './SubscriptionItems';
 export { TopUps } from './TopUps';
 export { Transfers } from './Transfers';
 export { WebhookEndpoints } from './WebhookEndpoints';