diff --git a/.gitignore b/.gitignore
index 42e6c4e..bcd122a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 /.vscode/c_cpp_properties.json
 /.libs
 /libapi.*
+!/libapi.mjs.d.ts
 /node_modules
diff --git a/libapi.mjs.d.ts b/libapi.mjs.d.ts
new file mode 100644
index 0000000..eda796f
--- /dev/null
+++ b/libapi.mjs.d.ts
@@ -0,0 +1,37 @@
+export type Config = {
+  name: string;
+  info: string;
+  label: string;
+  readonly: boolean;
+} & (
+  | { type: 'range'; value: number; min: number; max: number; step: number }
+  | { type: 'menu' | 'radio'; value: string; choices: string[] }
+  | { type: 'toggle'; value: boolean }
+  | { type: 'text'; value: string }
+  | { type: 'window'; children: Record<string, Config> }
+  | { type: 'section'; children: Record<string, Config> }
+  | { type: 'datetime'; value: number }
+);
+
+declare class Context {
+  configToJS(): Promise<Config & { type: 'window' }>;
+  setConfigValue(
+    name: string,
+    value: number | string | boolean
+  ): Promise<undefined>;
+  capturePreviewAsBlob(): Promise<Blob>;
+  captureImageAsFile(): Promise<File>;
+  hasPendingEvent(): Promise<boolean>;
+
+  delete(): void;
+  isDeleted(): boolean;
+}
+
+export interface Module extends EmscriptenModule {
+  Context: typeof Context;
+}
+
+export type { Context };
+
+declare const initModule: EmscriptenModuleFactory<Module>;
+export default initModule;