Deployment

Vercel

Use Claude Code to build, configure, and deploy frontend applications to Vercel with automatic preview deployments and environment setup.

Setup

1.
Install and authenticate the Vercel CLI
Claude Code uses the Vercel CLI to deploy, manage environment variables, and check deployment status. Install it and log in.
```
npm install -g vercel && vercel login
```
2.
Link your project to Vercel
Run vercel link in your project directory to connect it to a Vercel project. This allows Claude Code to deploy and manage the project.
```
cd /path/to/project && vercel link
```
3.
Add deployment conventions to CLAUDE.md
Tell Claude Code about your deployment environment, framework, and any build-time requirements so it can configure Vercel correctly.
```
echo "# Deployment\n- Platform: Vercel\n- Framework: Next.js 15\n- Node: 20.x\n- Env vars: see .env.example" >> CLAUDE.md
```

Features

+Deploys applications to Vercel with a single command via the Vercel CLI
+Creates and manages preview deployments for feature branches
+Configures environment variables, redirects, and headers in vercel.json
+Reads deployment logs to debug build failures and runtime errors
+Sets up Vercel project configuration including framework detection and build settings
+Manages custom domains and DNS configuration through the CLI

Use Cases

Build and deploy in one session

Ask Claude Code to implement a feature, run tests, and deploy to a Vercel preview URL. It handles the entire flow and gives you the preview link to review.

Debug deployment failures

When a Vercel deployment fails, paste the error or deployment URL. Claude Code reads the build logs, identifies the issue (missing env var, build error, dependency conflict), and fixes it.

Environment management

Claude Code can set up environment variables for development, preview, and production environments using the Vercel CLI, keeping your secrets organized without manual dashboard work.

Claude Code and Vercel: a natural pairing

Vercel is designed for frontend frameworks like Next.js, and Claude Code excels at building full-stack features in these frameworks. Together, they create a workflow where you can go from idea to deployed preview in a single Claude Code session — describe what you want, and Claude Code writes the code, runs the build, and deploys to Vercel.

Preview deployment workflow

Configuring vercel.json

Claude Code can create and modify your vercel.json configuration for redirects, rewrites, headers, and cron jobs. It understands Vercel's configuration schema and applies settings correctly for your framework.

Can Claude Code deploy to production on Vercel?+

Yes, using vercel --prod. However, it is recommended to use Claude Code for preview deployments and let your CI/CD pipeline handle production deployments after code review.

Does Claude Code work with Vercel Edge Functions?+

Yes. Claude Code can write Edge Function code, configure the runtime in vercel.json, and deploy it. It understands the constraints of the Edge runtime (no Node.js APIs, limited package support).

Can Claude Code set up Vercel environment variables?+

Yes. Using the vercel env command, Claude Code can add, update, and list environment variables for development, preview, and production environments.

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