diff --git a/inlang/packages/paraglide-js/package.json b/inlang/packages/paraglide-js/package.json
index f6ce560457..1304613d5a 100644
--- a/inlang/packages/paraglide-js/package.json
+++ b/inlang/packages/paraglide-js/package.json
@@ -60,19 +60,7 @@
 	"exports": {
 		".": "./dist/index.js",
 		"./cli": "./dist/cli/index.js",
-		"./compiler": "./dist/compiler/index.js",
-		"./internal": {
-			"import": "./dist/index.js",
-			"types": "./dist/index.d.ts"
-		},
-		"./internal/cli": {
-			"import": "./dist/cli/index.js",
-			"types": "./dist/cli/index.d.ts"
-		},
-		"./internal/adapter-utils": {
-			"import": "./dist/adapter-utils/index.js",
-			"types": "./dist/adapter-utils/index.d.ts"
-		}
+		"./compiler": "./dist/compiler/index.js"
 	},
 	"keywords": [
 		"inlang",
diff --git a/inlang/packages/paraglide-js/src/cli/commands/init/command.ts b/inlang/packages/paraglide-js/src/cli/commands/init/command.ts
index aa858374df..138e4c3630 100644
--- a/inlang/packages/paraglide-js/src/cli/commands/init/command.ts
+++ b/inlang/packages/paraglide-js/src/cli/commands/init/command.ts
@@ -6,7 +6,7 @@ import { findPackageJson } from "../../../services/environment/package.js";
 import { checkForUncommittedChanges } from "../../steps/check-for-uncomitted-changes.js";
 import { initializeInlangProject } from "../../steps/initialize-inlang-project.js";
 import { maybeAddSherlock } from "../../steps/maybe-add-sherlock.js";
-import { maybeChangeTsConfig } from "../../steps/update-ts-config.js";
+import { maybeUpdateTsConfig } from "../../steps/update-ts-config.js";
 import { promptForOutdir } from "../../steps/prompt-for-outdir.js";
 import { updatePackageJson } from "../../steps/update-package-json.js";
 import { runCompiler } from "../../steps/run-compiler.js";
@@ -44,7 +44,7 @@ export const initCommand = new Command()
 			await addCompileStepToPackageJSON(ctx6);
 		}
 
-		const ctx7 = await maybeChangeTsConfig(ctx6);
+		const ctx7 = await maybeUpdateTsConfig(ctx6);
 		const ctx8 = await maybeAddSherlock(ctx7);
 
 		try {
diff --git a/inlang/packages/paraglide-js/src/cli/index.ts b/inlang/packages/paraglide-js/src/cli/index.ts
index 74bd2d2b2b..003f9cc7dd 100644
--- a/inlang/packages/paraglide-js/src/cli/index.ts
+++ b/inlang/packages/paraglide-js/src/cli/index.ts
@@ -3,14 +3,6 @@ import { compileCommand } from "./commands/compile/command.js";
 import { ENV_VARIABLES } from "../services/env-variables/index.js";
 import { initCommand } from "./commands/init/command.js";
 
-export { checkForUncommittedChanges } from "./steps/check-for-uncomitted-changes.js";
-export { initializeInlangProject } from "./steps/initialize-inlang-project.js";
-export { maybeAddSherlock } from "./steps/maybe-add-sherlock.js";
-export { maybeChangeTsConfig } from "./steps/update-ts-config.js";
-export { promptForOutdir } from "./steps/prompt-for-outdir.js";
-export { updatePackageJson } from "./steps/update-package-json.js";
-export { runCompiler } from "./steps/run-compiler.js";
-
 export const cli = new Command()
 	.name("paraglide-js")
 	.addCommand(compileCommand)
@@ -20,3 +12,5 @@ export const cli = new Command()
 
 export * as Utils from "./utils.js";
 export * as Defaults from "./defaults.js";
+export * as Steps from "./steps/index.js";
+export { Logger } from "../services/logger/index.js";
diff --git a/inlang/packages/paraglide-js/src/cli/steps/index.ts b/inlang/packages/paraglide-js/src/cli/steps/index.ts
new file mode 100644
index 0000000000..2522ad7130
--- /dev/null
+++ b/inlang/packages/paraglide-js/src/cli/steps/index.ts
@@ -0,0 +1,9 @@
+export { addVitePlugin } from "./add-vite-plugin.js";
+export { checkForUncommittedChanges } from "./check-for-uncomitted-changes.js";
+export { detectBundler } from "./detect-bundler.js";
+export { initializeInlangProject } from "./initialize-inlang-project.js";
+export { maybeAddSherlock } from "./maybe-add-sherlock.js";
+export { promptForOutdir } from "./prompt-for-outdir.js";
+export { runCompiler } from "./run-compiler.js";
+export { updatePackageJson } from "./update-package-json.js";
+export { maybeUpdateTsConfig } from "./update-ts-config.js";
diff --git a/inlang/packages/paraglide-js/src/cli/steps/update-ts-config.ts b/inlang/packages/paraglide-js/src/cli/steps/update-ts-config.ts
index 7195bc4d12..05bf3c58e6 100644
--- a/inlang/packages/paraglide-js/src/cli/steps/update-ts-config.ts
+++ b/inlang/packages/paraglide-js/src/cli/steps/update-ts-config.ts
@@ -5,18 +5,18 @@ import JSON5 from "json5";
 import { pathExists } from "../../services/file-handling/exists.js";
 import nodePath from "node:path";
 
-export const maybeChangeTsConfig: CliStep<
+export const maybeUpdateTsConfig: CliStep<
 	{ fs: typeof import("node:fs/promises"); logger: Logger },
 	unknown
 > = async (ctx) => {
-	const ctx1 = await maybeChangeTsConfigAllowJs(ctx);
-	return await maybeChangeTsConfigModuleResolution(ctx1);
+	const ctx1 = await maybeUpdateTsConfigAllowJs(ctx);
+	return await maybeUpdateTsConfigModuleResolution(ctx1);
 };
 
 /**
  * Paraligde JS compiles to JS with JSDoc comments. TypeScript doesn't allow JS files by default.
  */
-export const maybeChangeTsConfigAllowJs: CliStep<
+export const maybeUpdateTsConfigAllowJs: CliStep<
 	{ fs: typeof import("node:fs/promises"); logger: Logger },
 	unknown
 > = async (ctx) => {
@@ -86,7 +86,7 @@ export const maybeChangeTsConfigAllowJs: CliStep<
  * Otherwise, types defined in `package.exports` are not resolved by TypeScript. Leading to type
  * errors with Paraglide-JS.
  */
-const maybeChangeTsConfigModuleResolution: CliStep<
+const maybeUpdateTsConfigModuleResolution: CliStep<
 	{ fs: typeof import("node:fs/promises"); logger: Logger },
 	unknown
 > = async (ctx) => {
diff --git a/inlang/packages/paraglide-js/src/compiler/index.ts b/inlang/packages/paraglide-js/src/compiler/index.ts
index a3149de109..9081c51fbe 100644
--- a/inlang/packages/paraglide-js/src/compiler/index.ts
+++ b/inlang/packages/paraglide-js/src/compiler/index.ts
@@ -1,5 +1,7 @@
 export type { CompilerArgs } from "./compile.js";
 export type { CompilerOptions } from "./compile-project.js";
+export type { MessageBundleFunction, MessageFunction } from "./types.js";
+export type { Runtime } from "./runtime/type.js";
 export { compile } from "./compile.js";
 export { compileProject } from "./compile-project.js";
 export { compileBundle } from "./compile-bundle.js";
diff --git a/inlang/packages/paraglide-js/src/compiler/runtime/type.test.ts b/inlang/packages/paraglide-js/src/compiler/runtime/type.test.ts
new file mode 100644
index 0000000000..f9b8b17999
--- /dev/null
+++ b/inlang/packages/paraglide-js/src/compiler/runtime/type.test.ts
@@ -0,0 +1,54 @@
+import { expect, test } from "vitest";
+import { createProject as typescriptProject, ts } from "@ts-morph/bootstrap";
+import { createRuntime } from "./create-runtime.js";
+import fs from "node:fs/promises";
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "url";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+test("runtime type", async () => {
+	const project = await typescriptProject({
+		useInMemoryFileSystem: true,
+		compilerOptions: {
+			outDir: "./dist",
+			declaration: true,
+			allowJs: true,
+			checkJs: true,
+			module: ts.ModuleKind.Node16,
+			strict: true,
+		},
+	});
+
+	const jsdocRuntime = createRuntime(
+		{ baseLocale: "en", locales: ["en"] },
+		false
+	);
+
+	const runtimeType = await fs.readFile(
+		resolve(__dirname, "./type.ts"),
+		"utf-8"
+	);
+
+	project.createSourceFile("./runtime.js", jsdocRuntime);
+
+	project.createSourceFile("./runtime-type.ts", runtimeType);
+
+	project.createSourceFile(
+		"./test.ts",
+		`
+    import * as runtime from "./runtime.js"
+    import type { Runtime as RuntimeType } from "./runtime-type.js"
+
+    const runtimeType: RuntimeType = runtime
+    `
+	);
+
+	const program = project.createProgram();
+	const diagnostics = ts.getPreEmitDiagnostics(program);
+	for (const diagnostic of diagnostics) {
+		console.error(diagnostic.messageText, diagnostic.file?.fileName);
+	}
+	expect(diagnostics.length).toEqual(0);
+});
diff --git a/inlang/packages/paraglide-js/src/compiler/runtime/type.ts b/inlang/packages/paraglide-js/src/compiler/runtime/type.ts
new file mode 100644
index 0000000000..b2a25604c7
--- /dev/null
+++ b/inlang/packages/paraglide-js/src/compiler/runtime/type.ts
@@ -0,0 +1,17 @@
+/**
+ * The Paraglide runtime API.
+ */
+export type Runtime = {
+	baseLocale: UnknownLocale;
+	locales: Readonly<UnknownLocale[]>;
+	getLocale: () => string;
+	setLocale: (newLocale: UnknownLocale) => void;
+	defineGetLocale: (fn: () => UnknownLocale) => void;
+	defineSetLocale: (fn: (newLocale: UnknownLocale) => void) => void;
+	isLocale: (locale: UnknownLocale) => locale is UnknownLocale;
+};
+
+/**
+ * A locale that is unknown before compilation.
+ */
+export type UnknownLocale = any;