Built with Replit Agent? Deploy it to Fly.io.
Step-by-step deployment help for Replit Agent-built apps on Fly.io. We fix deployment issues, configure Fly.io correctly, and get your app live in production. From $19.
Replit Agent issues we fix before deploying
Problems specific to Replit Agent's code generation that affect Fly.io deployments.
Secrets stored in Replit environment
API keys and credentials stored in Replit's secrets manager don't transfer when you export the project. Developers often hardcode them as a workaround, creating security risks.
No HTTPS or security headers
Replit's development environment doesn't enforce HTTPS or set security headers. Apps deployed without proper configuration are vulnerable to man-in-the-middle attacks.
Database connection instability
Replit's hosted databases can disconnect unexpectedly. Without connection pooling and retry logic, apps crash or lose data during these interruptions.
File system assumptions
Replit Agent sometimes writes to the file system assuming persistent storage, which breaks on containerized or serverless deployments.
Fly.io deployment issues we check for
Common Fly.io problems that break AI-generated apps in production.
Dockerfile missing or misconfigured
Fly.io requires a Dockerfile for deployment. AI tools that scaffold without one force flyctl to auto-generate a suboptimal Dockerfile that misses build steps.
Volume only available in a single region
Fly volumes are pinned to one region. Multi-region deployments try to access a volume that doesn't exist in other regions, causing crashes.
Machine restarts losing in-memory state
AI-generated apps store session data or caches in memory. Fly machines can restart or migrate, wiping all in-memory state without warning.
Internal DNS resolution failing between services
Services within a Fly organization communicate via <app>.internal hostnames, but AI-generated code hardcodes localhost or public URLs.
Start with a self-serve audit
Get a professional review of your Replit Agent project before deploying to Fly.io.
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 Replit Agent-built app to Fly.io?
Yes. We regularly deploy Replit Agent-generated projects to Fly.io. We handle the platform-specific configuration, fix deployment errors, and ensure your app runs reliably in production on Fly.io.
What Fly.io issues do Replit Agent projects typically have?
Replit Agent projects commonly have secrets stored in replit environment and no https or security headers. When deploying to Fly.io, these combine with platform-specific issues like dockerfile missing or misconfigured and volume only available in a single region.
How do I get my Replit Agent project live on Fly.io?
Start with our code audit ($19) to get a prioritized list of deployment blockers. For Replit Agent-built projects targeting Fly.io, the typical path is: fix Replit Agent-specific code issues, configure Fly.io settings correctly, then deploy. We provide a fixed quote after the audit.
Can you handle the full deployment of my Replit Agent app to Fly.io?
Yes. We handle end-to-end deployment: auditing your Replit Agent codebase, fixing deployment blockers, configuring Fly.io correctly, setting up environment variables, and getting your app live in production. Start with our code audit ($19).
Related resources
Deploy Replit Agent Apps
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Need help deploying your Replit Agent app to Fly.io?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.