diff --git a/src/types/api.ts b/src/types/api.ts
new file mode 100644
index 0000000..0d77183
--- /dev/null
+++ b/src/types/api.ts
@@ -0,0 +1,65 @@
+//TypeScript types for API requests/responses
+import { Item } from './database';
+
+// API Request Types (matching your Rust structs)
+export interface ItemRequest {
+  url: string;
+  item: Item;
+}
+
+// API Response Types
+export interface ApiResponse<T> {
+  data?: T;
+  error?: string;
+  details?: string;
+  message?: string;
+}
+
+export interface ItemsResponse {
+  items: Item[];
+  selectedProperties: string[];
+}
+
+export interface ErrorResponse {
+  error: string;
+  details?: string;
+  url?: string;
+  itemId?: string;
+  property?: string;
+}
+
+// API Success Responses
+export interface ItemCreatedResponse {
+  message: string;
+  item: Item;
+}
+
+export interface ItemDeletedResponse {
+  message: string;
+  itemId: string;
+}
+
+export interface PropertyAddedResponse {
+  message: string;
+  property: string;
+}
+
+export interface PropertyDeletedResponse {
+  message: string;
+  property: string;
+}
+
+// HTTP Status Codes (for consistency)
+export const HTTP_STATUS = {
+  OK: 200,
+  BAD_REQUEST: 400,
+  INTERNAL_SERVER_ERROR: 500,
+} as const;
+
+// API Endpoints (for consistency)
+export const API_ENDPOINTS = {
+  ITEMS: (encodedUrl: string) => `/api/urls/${encodedUrl}/items`,
+  ITEM: (encodedUrl: string, itemId: string) => `/api/urls/${encodedUrl}/items/${itemId}`,
+  PROPERTIES: (encodedUrl: string) => `/api/urls/${encodedUrl}/properties`,
+  PROPERTY: (encodedUrl: string, property: string) => `/api/urls/${encodedUrl}/properties/${property}`,
+} as const;
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