diff --git a/apps/github-app/api/index.js b/apps/github-app/api/index.js
new file mode 100644
index 00000000..fd60a3b6
--- /dev/null
+++ b/apps/github-app/api/index.js
@@ -0,0 +1,11 @@
+const app = require('express')();
+const { v4 } = require('uuid');
+const { createProbot } = require('probot');
+const { appFn, buildRouter } = require('../src/app');
+
+const probot = createProbot();
+probot.load(appFn, {
+  getRouter: (path) => app,
+});
+
+module.exports = app;
diff --git a/apps/github-app/package.json b/apps/github-app/package.json
index 59756fe3..bbc75fe2 100644
--- a/apps/github-app/package.json
+++ b/apps/github-app/package.json
@@ -21,6 +21,7 @@
     "axios": "^0.21.1",
     "body-parser": "^1.20.1",
     "dotenv": "^16.0.3",
+    "express": "^4.18.2",
     "lodash": "^4.17.21",
     "probot": "^12.3.0",
     "probot-metadata": "^2.1.0"
diff --git a/apps/github-app/src/app.ts b/apps/github-app/src/app.ts
index 81ad9bfe..e792072f 100644
--- a/apps/github-app/src/app.ts
+++ b/apps/github-app/src/app.ts
@@ -207,14 +207,17 @@ function createTailchatClient(tailchatHost = defaultTailchatApiUrl) {
   return tailchatClient;
 }
 
-function buildRouter(
+export function buildRouter(
   app: Probot,
   getRouter: Parameters<ApplicationFunction>[1]['getRouter']
 ) {
   if (getRouter) {
     getRouter('/')
-      .get('/', (_req, res) => {
-        res.send('Hello World! Github app server is working!');
+      .get('/api', (_req, res) => {
+        res.send('Hello World! Github app api server is working!');
+      })
+      .get('/api/message/webhook', (_req, res) => {
+        res.send('Please use POST method');
       })
       .post('/message/webhook', bodyParser.json(), (req, res) => {
         (async () => {
diff --git a/apps/github-app/vercel.json b/apps/github-app/vercel.json
new file mode 100644
index 00000000..86eef076
--- /dev/null
+++ b/apps/github-app/vercel.json
@@ -0,0 +1,6 @@
+{
+  "rewrites": [
+    { "source": "/api/(.*)", "destination": "/api" },
+    { "source": "/api/github/webhooks", "destination": "/api/github/webhooks" }
+  ]
+}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a9c5f6b2..fce8d5f1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -154,6 +154,7 @@ importers:
       axios: ^0.21.1
       body-parser: ^1.20.1
       dotenv: ^16.0.3
+      express: ^4.18.2
       jest: 27.5.1
       lodash: ^4.17.21
       nock: ^13.0.5
@@ -163,11 +164,12 @@ importers:
       smee-client: ^1.2.2
       ts-jest: 27.1.4
       ts-node: ^10.9.1
-      typescript: ^4.1.3
+      typescript: ^4.8.2
     dependencies:
       axios: 0.21.4
       body-parser: 1.20.1
       dotenv: 16.0.3
+      express: 4.18.2
       lodash: 4.17.21
       probot: 12.3.0
       probot-metadata: 2.1.0_probot@12.3.0
@@ -180,9 +182,9 @@ importers:
       nock: 13.2.9
       nodemon: 2.0.20
       smee-client: 1.2.3
-      ts-jest: 27.1.4_ycpvkzuynwz3ym5w5cufqamazq
-      ts-node: 10.9.1_k2dsl7zculo2nmh5s33pladmoa
-      typescript: 4.8.2
+      ts-jest: 27.1.4_n4jzo3ixy42kfaqevs43wjx5ui
+      ts-node: 10.9.1_4hee3ckhxcse3era5mxqjwg7u4
+      typescript: 4.9.5
 
   apps/widget:
     specifiers:
@@ -5547,10 +5549,10 @@ packages:
       '@types/node': 18.11.18
       chalk: 4.1.2
       cosmiconfig: 7.1.0
-      cosmiconfig-typescript-loader: 2.0.2_awa2wsr5thmg3i7jqycphctjfq
+      cosmiconfig-typescript-loader: 2.0.2_bdgp3l2zgaopogaavxusmetvge
       lodash: 4.17.21
       resolve-from: 5.0.0
-      typescript: 4.9.4
+      typescript: 4.9.5
     transitivePeerDependencies:
       - '@swc/core'
       - '@swc/wasm'
@@ -12883,7 +12885,7 @@ packages:
     resolution: {integrity: sha512-YSLRnAS62iP/vcjHTMbsYtW9RJ7LIMVgp3SwTa8/fV4sE8hjCYQee5LPI4JFbx2oIF5Mw9E1ekkWJu9pHCccrA==}
     dependencies:
       '@types/bluebird': 3.5.38
-      typescript: 4.9.4
+      typescript: 4.9.5
     dev: true
 
   /@types/ejs/3.1.1:
@@ -17826,7 +17828,7 @@ packages:
       vary: 1.1.2
     dev: false
 
-  /cosmiconfig-typescript-loader/2.0.2_awa2wsr5thmg3i7jqycphctjfq:
+  /cosmiconfig-typescript-loader/2.0.2_bdgp3l2zgaopogaavxusmetvge:
     resolution: {integrity: sha512-KmE+bMjWMXJbkWCeY4FJX/npHuZPNr9XF9q9CIQ/bpFwi1qHfCmSiKarrCcRa0LO4fWjk93pVoeRtJAkTGcYNw==}
     engines: {node: '>=12', npm: '>=6'}
     peerDependencies:
@@ -17835,8 +17837,8 @@ packages:
     dependencies:
       '@types/node': 18.11.18
       cosmiconfig: 7.1.0
-      ts-node: 10.9.1_awa2wsr5thmg3i7jqycphctjfq
-      typescript: 4.9.4
+      ts-node: 10.9.1_bdgp3l2zgaopogaavxusmetvge
+      typescript: 4.9.5
     transitivePeerDependencies:
       - '@swc/core'
       - '@swc/wasm'
@@ -24381,7 +24383,7 @@ packages:
       pretty-format: 27.5.1
       slash: 3.0.0
       strip-json-comments: 3.1.1
-      ts-node: 10.9.1_k2dsl7zculo2nmh5s33pladmoa
+      ts-node: 10.9.1_4hee3ckhxcse3era5mxqjwg7u4
     transitivePeerDependencies:
       - bufferutil
       - canvas
@@ -36822,7 +36824,7 @@ packages:
       yargs-parser: 20.2.9
     dev: true
 
-  /ts-jest/27.1.4_r5n7iohbfbguzk5ispbdybm75m:
+  /ts-jest/27.1.4_n4jzo3ixy42kfaqevs43wjx5ui:
     resolution: {integrity: sha512-qjkZlVPWVctAezwsOD1OPzbZ+k7zA5z3oxII4dGdZo5ggX/PL7kvwTM0pXTr10fAtbiVpJaL3bWd502zAhpgSQ==}
     engines: {node: ^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0}
     hasBin: true
@@ -36843,7 +36845,7 @@ packages:
       esbuild:
         optional: true
     dependencies:
-      '@types/jest': 26.0.24
+      '@types/jest': 27.5.2
       bs-logger: 0.2.6
       fast-json-stable-stringify: 2.1.0
       jest: 27.5.1_ts-node@10.9.1
@@ -36852,11 +36854,11 @@ packages:
       lodash.memoize: 4.1.2
       make-error: 1.3.6
       semver: 7.3.7
-      typescript: 4.7.4
+      typescript: 4.9.5
       yargs-parser: 20.2.9
     dev: true
 
-  /ts-jest/27.1.4_ycpvkzuynwz3ym5w5cufqamazq:
+  /ts-jest/27.1.4_r5n7iohbfbguzk5ispbdybm75m:
     resolution: {integrity: sha512-qjkZlVPWVctAezwsOD1OPzbZ+k7zA5z3oxII4dGdZo5ggX/PL7kvwTM0pXTr10fAtbiVpJaL3bWd502zAhpgSQ==}
     engines: {node: ^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0}
     hasBin: true
@@ -36877,7 +36879,7 @@ packages:
       esbuild:
         optional: true
     dependencies:
-      '@types/jest': 27.5.2
+      '@types/jest': 26.0.24
       bs-logger: 0.2.6
       fast-json-stable-stringify: 2.1.0
       jest: 27.5.1_ts-node@10.9.1
@@ -36886,7 +36888,7 @@ packages:
       lodash.memoize: 4.1.2
       make-error: 1.3.6
       semver: 7.3.7
-      typescript: 4.8.2
+      typescript: 4.7.4
       yargs-parser: 20.2.9
     dev: true
 
@@ -36903,6 +36905,37 @@ packages:
       tweetnacl: 1.0.3
     dev: true
 
+  /ts-node/10.9.1_4hee3ckhxcse3era5mxqjwg7u4:
+    resolution: {integrity: sha512-NtVysVPkxxrwFGUUxGYhfux8k78pQB3JqYBXlLRZgdGUqTO5wU/UyHop5p70iEbGhB7q5KmiZiU0Y3KlJrScEw==}
+    hasBin: true
+    peerDependencies:
+      '@swc/core': '>=1.2.50'
+      '@swc/wasm': '>=1.2.50'
+      '@types/node': '*'
+      typescript: '>=2.7'
+    peerDependenciesMeta:
+      '@swc/core':
+        optional: true
+      '@swc/wasm':
+        optional: true
+    dependencies:
+      '@cspotcode/source-map-support': 0.8.1
+      '@tsconfig/node10': 1.0.9
+      '@tsconfig/node12': 1.0.11
+      '@tsconfig/node14': 1.0.3
+      '@tsconfig/node16': 1.0.3
+      '@types/node': 18.7.11
+      acorn: 8.8.1
+      acorn-walk: 8.2.0
+      arg: 4.1.3
+      create-require: 1.1.1
+      diff: 4.0.2
+      make-error: 1.3.6
+      typescript: 4.9.5
+      v8-compile-cache-lib: 3.0.1
+      yn: 3.1.1
+    dev: true
+
   /ts-node/10.9.1_awa2wsr5thmg3i7jqycphctjfq:
     resolution: {integrity: sha512-NtVysVPkxxrwFGUUxGYhfux8k78pQB3JqYBXlLRZgdGUqTO5wU/UyHop5p70iEbGhB7q5KmiZiU0Y3KlJrScEw==}
     hasBin: true
@@ -36932,8 +36965,9 @@ packages:
       typescript: 4.9.4
       v8-compile-cache-lib: 3.0.1
       yn: 3.1.1
+    dev: false
 
-  /ts-node/10.9.1_k2dsl7zculo2nmh5s33pladmoa:
+  /ts-node/10.9.1_bdgp3l2zgaopogaavxusmetvge:
     resolution: {integrity: sha512-NtVysVPkxxrwFGUUxGYhfux8k78pQB3JqYBXlLRZgdGUqTO5wU/UyHop5p70iEbGhB7q5KmiZiU0Y3KlJrScEw==}
     hasBin: true
     peerDependencies:
@@ -36952,14 +36986,14 @@ packages:
       '@tsconfig/node12': 1.0.11
       '@tsconfig/node14': 1.0.3
       '@tsconfig/node16': 1.0.3
-      '@types/node': 18.7.11
+      '@types/node': 18.11.18
       acorn: 8.8.1
       acorn-walk: 8.2.0
       arg: 4.1.3
       create-require: 1.1.1
       diff: 4.0.2
       make-error: 1.3.6
-      typescript: 4.8.2
+      typescript: 4.9.5
       v8-compile-cache-lib: 3.0.1
       yn: 3.1.1
     dev: true