diff --git a/src/launcher.d.ts b/src/launcher.d.ts
new file mode 100644
index 0000000..994ccd3
--- /dev/null
+++ b/src/launcher.d.ts
@@ -0,0 +1,59 @@
+declare module "getid-launcher" {
+    declare const init: (
+        containerId: string,
+        skdKey: string,
+        originCfg: PageSideConfig,
+        ...args: any
+    ) => void
+
+    interface Profile {
+        category: string
+        value: string
+    }
+
+    interface Metadata {
+        externalId: string
+        labels: object
+    }
+
+    interface PageSideConfig {
+        apiUrl: string
+        sdkKey?: string
+        apiKey?: string
+        jwt?: string
+        containerId?: string
+        flow?: any
+        flowName?: string
+        metadata?: Metadata
+        mode?: "popup" | "inline"
+        onFail?: (code: string) => void
+        onComplete?: (result: { id: string; responseCode: number }) => void
+        profile?: Profile[]
+        locale?: string
+        customerId?: string
+        injectCSS?: string
+        htmlProperties?: {
+            disableSwitchDevice: bool
+            disableSwitchLocales: bool
+            isPopUp: bool
+        }
+    }
+
+    interface getLinkScriptResponse {
+        responseCode: 400 | 200
+        message?: string
+        scriptLink?: string
+    }
+
+    interface GetidWebSdk {
+        init: (config: object) => void
+    }
+
+    declare global {
+        interface Window {
+            getidWebSdk: GetidWebSdk
+        }
+    }
+
+    export { PageSideConfig, getLinkScriptResponse, init }
+}