CustomJS
Use CustomJS with AI apps and agents through Vercel Connect. Follow a complete setup guide for secure runtime access.
Install the skill
$ npx skills add vercel/vercel-plugin --skill vercel-connectConnect to
Use its data in agents(opens in new tab) and apps(opens in new tab)
import { getToken } from '@vercel/connect';const userId = 'user_123';const token = await getToken('customjs/acme-customjs', {subject: { type: 'user', id: userId },});
Use CustomJS in apps and agents
Run JavaScript automations and generate PDFs, screenshots, and hosted pages.
Why use Vercel Connect with CustomJS?
Credentials on demand
Request CustomJS credentials only when your application or agent needs them instead of copying secrets into application code.
Access for the right subject
Support both user-authorized and app-scoped CustomJS access from the same connection layer.
Centralized credential management
Manage CustomJS credentials in one place and retrieve them through a consistent runtime API.
Vercel-native controls
Bind connections to the projects and environments that need them while Vercel OIDC authenticates each runtime request.
Use CustomJS with your stack
Follow a complete setup for the Connect SDK or a supported agent framework.
Add CustomJS to an existing Vercel application with the Connect SDK.
Install the Connect SDK
npm install @vercel/connectCreate the CustomJS connector
Run these commands from the project that will use the connection.
vercel linkvercel connect create customjs --name acme-customjsvercel env pullRequest CustomJS credentials
app/api/route.tsimport { getToken } from '@vercel/connect';const userId = 'user_123';const token = await getToken('customjs/acme-customjs', {subject: { type: 'user', id: userId },});
