diff --git a/packages/core-api/package.json b/packages/core-api/package.json
new file mode 100644
index 0000000..d0f7cad
--- /dev/null
+++ b/packages/core-api/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "@repo/core-api",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "exports": {
+    ".": "./src/index.ts"
+  },
+  "scripts": {
+    "build": "tsc --noEmit",
+    "lint": "eslint .",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@repo/core-shared": "workspace:*",
+    "@trpc/server": "^11.0.0"
+  },
+  "devDependencies": {
+    "@repo/eslint-config": "workspace:*",
+    "@repo/typescript-config": "workspace:*",
+    "@types/node": "^22.0.0"
+  }
+}
diff --git a/packages/core-api/src/index.ts b/packages/core-api/src/index.ts
new file mode 100644
index 0000000..3a906ac
--- /dev/null
+++ b/packages/core-api/src/index.ts
@@ -0,0 +1 @@
+export { appRouter, type AppRouter } from "./root";
diff --git a/packages/core-api/src/root.ts b/packages/core-api/src/root.ts
new file mode 100644
index 0000000..8e563d2
--- /dev/null
+++ b/packages/core-api/src/root.ts
@@ -0,0 +1,5 @@
+import { router } from "@repo/core-shared/trpc/init";
+
+export const appRouter = router({});
+
+export type AppRouter = typeof appRouter;
diff --git a/packages/core-api/tsconfig.json b/packages/core-api/tsconfig.json
new file mode 100644
index 0000000..b52d4d5
--- /dev/null
+++ b/packages/core-api/tsconfig.json
@@ -0,0 +1,9 @@
+{
+  "extends": "@repo/typescript-config/base.json",
+  "compilerOptions": {
+    "outDir": "dist",
+    "rootDir": "src"
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist"]
+}
diff --git a/packages/core-api/turbo.json b/packages/core-api/turbo.json
new file mode 100644
index 0000000..dcb8fb3
--- /dev/null
+++ b/packages/core-api/turbo.json
@@ -0,0 +1,4 @@
+{
+  "extends": ["//"],
+  "tags": ["core"]
+}