diff --git a/cmds/pxtrequire.ts b/cmds/pxtrequire.ts
new file mode 100644
index 00000000..26442585
--- /dev/null
+++ b/cmds/pxtrequire.ts
@@ -0,0 +1,4 @@
+import * as path from "path";
+export let pxtCore = require("pxt-core");
+// require.resolve() gives path to [pxt dir]/built/pxt.js, so move up twice to get pxt root dir
+export let pxtCoreDir = path.resolve(require.resolve("pxt-core"), "..", "..");
diff --git a/package.json b/package.json
index 70d90983..401486ae 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,8 @@
     "docs/*/*.md",
     "docs/*/*/*.md"
   ],
+  "main": "built/pxtrequire.js",
+  "typings": "built/pxtrequire.d.ts",
   "devDependencies": {
     "typescript": "^1.8.7"
   },
@@ -34,4 +36,4 @@
     "less": "^2.6.0",
     "semantic-ui-less": "^2.2.4"
   }
-}
+}
\ No newline at end of file