diff --git a/src/browser.ts b/src/browser.ts
index d3f0598..36898b3 100644
--- a/src/browser.ts
+++ b/src/browser.ts
@@ -1,5 +1,5 @@
 // Browser-compatible exports
 export * from "./schemas/latest.js";
+export * from "./schemas/index.js";
 export * from "./shared/config.js";
-export * from "./shared/constants.js";
 export * from "./types.js";
diff --git a/src/schemas/index.ts b/src/schemas/index.ts
index df8ff1e..06ad45c 100644
--- a/src/schemas/index.ts
+++ b/src/schemas/index.ts
@@ -1,3 +1,7 @@
+import { McpbManifestSchema as ManifestSchemaV0_1 } from "./0.1.js";
+import { McpbManifestSchema as ManifestSchemaV0_2 } from "./0.2.js";
+import { McpbManifestSchema as ManifestSchemaV0_3 } from "./0.3.js";
+
 export * as v0_1 from "./0.1.js";
 export * as v0_2 from "./0.2.js";
 export * as v0_3 from "./0.3.js";
@@ -5,5 +9,14 @@ export * as vAny from "./any.js";
 export * as vLatest from "./latest.js";
 export {
   MANIFEST_VERSION as LATEST_MANIFEST_VERSION,
-  McpbManifestSchema,
+  McpbManifestSchema as LatestMcpbManifestSchema,
 } from "./latest.js";
+
+/**
+ * Map of manifest versions to their strict schemas
+ */
+export const VERSIONED_MANIFEST_SCHEMAS = {
+  "0.1": ManifestSchemaV0_1,
+  "0.2": ManifestSchemaV0_2,
+  "0.3": ManifestSchemaV0_3,
+} as const;
\ No newline at end of file