Built with Codex CLI? Deploy it to Vercel.
Step-by-step deployment help for Codex CLI-built apps on Vercel. We fix deployment issues, configure Vercel correctly, and get your app live in production. From $19.
Codex CLI issues we fix before deploying
Problems specific to Codex CLI's code generation that affect Vercel deployments.
API keys and secrets written directly into generated source files
Codex CLI generates code with placeholder credentials that developers often replace with real values inline, leaving secrets committed to version control. There is no .env scaffolding or secret management setup by default.
No authentication or authorization on generated API endpoints
When Codex generates Express or FastAPI backends, routes are created without middleware for authentication, meaning every endpoint is publicly accessible immediately after deployment.
Single-file output breaks apart for any real project structure
Codex frequently outputs all logic into one or two files rather than organizing code into modules, services, and utilities — making the result hard to maintain and extend as the codebase grows.
Generated code lacks awareness of existing project context
Because Codex operates from a prompt without full codebase indexing, it generates code that duplicates existing utilities, ignores established conventions, and introduces conflicting patterns alongside your real code.
Vercel deployment issues we check for
Common Vercel problems that break AI-generated apps in production.
Serverless function size exceeds 50MB limit
AI tools bundle heavy dependencies into API routes without tree-shaking, pushing serverless functions past Vercel's 50MB compressed size limit and failing the build.
Edge runtime incompatible with Node.js APIs
Generated code uses fs, crypto, or other Node.js built-ins inside Edge Runtime routes, causing deployment failures since Edge only supports a subset of Web APIs.
ISR revalidation not triggering correctly
Incremental Static Regeneration configured with stale revalidate values or missing on-demand revalidation hooks, serving outdated content indefinitely.
Environment variables missing in production
Secrets added to .env.local but not configured in the Vercel dashboard, causing runtime crashes only in production while working perfectly in local dev.
Start with a self-serve audit
Get a professional review of your Codex CLI project before deploying to Vercel.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Can you deploy a Codex CLI-built app to Vercel?
Yes. We regularly deploy Codex CLI-generated projects to Vercel. We handle the platform-specific configuration, fix deployment errors, and ensure your app runs reliably in production on Vercel.
What Vercel issues do Codex CLI projects typically have?
Codex CLI projects commonly have api keys and secrets written directly into generated source files and no authentication or authorization on generated api endpoints. When deploying to Vercel, these combine with platform-specific issues like serverless function size exceeds 50mb limit and edge runtime incompatible with node.js apis.
How do I get my Codex CLI project live on Vercel?
Start with our code audit ($19) to get a prioritized list of deployment blockers. For Codex CLI-built projects targeting Vercel, the typical path is: fix Codex CLI-specific code issues, configure Vercel settings correctly, then deploy. We provide a fixed quote after the audit.
Can you handle the full deployment of my Codex CLI app to Vercel?
Yes. We handle end-to-end deployment: auditing your Codex CLI codebase, fixing deployment blockers, configuring Vercel correctly, setting up environment variables, and getting your app live in production. Start with our code audit ($19).
Related resources
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