Agent-ready PaaS

AppSail, a robust Platform-as-a-Service (PaaS) component, enables building and hosting dynamic applications using any framework of your choice.

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Works with coding agents you use

  • Claude
  • Cursor
  • Antigravity
  • Codex
  • GitHub Copilot

Supported languages

  • Swift
  • Kotlin
  • Java
  • Python
  • Node.js
  • JavaScript
  • HTML5
  • CSS3

AI Platform

Appsail works smoothly no matter who's operating it. Quickly build applications using well-known frameworks such as Spring, Spring Boot, Struts, Flask, Tornado, or Django in Java, Node.js, or Python.

Key Features

  • Custom runtime

    Deploy OCI-compliant Docker images directly to AppSail with full flexibility over deployment of your preferred web services.

  • Fully-managed and autoscaling

    Focus on business logic and accommodate fluctuating application traffic with Catalyst's fully-managed infrastructure

  • Pay per usage

    A pay-as-you-go billing model ensures that you pay only for your app's usage.

  • Migrate in minutes

    Migrate from any platform to a scalable cloud and innovate faster by building serverless APIs and microservices in AppSail.

What can be hosted on

  • Legacy modernization of apps

    AppSail allows you to seamlessly migrate an on-premise application to adopt a scalable application that has the best uptime without worrying about the server maintenance.

  • Modern web apps

    Build enterprise-grade web applications with zero server management, zero configuration deployments, and any framework of your choice.

  • Startup-friendly apps

    Startups move fast but infrastructure slows them down. AppSail eliminates the complexity of cloud hosting, traffic management and scaling to help so small teams ship fast.

  • SaaS Apps

    A lean team building a B2B SaaS product can deploy and scale across multiple enterprise clients without a single infrastructure hire. AppSail handles hosting, runtime, and scaling automatically, so the team ships faster and grows without limits.

Nothing else.

Estimate your monthly Catalyst QuickML spend.

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*If an account exceeds free tier limits, a minimum charge of 5 per project is applicable. Avoid this fee by deleting unused projects.

Try the comprehensive pricing calculator for platform level estimates. Learn more

Ready to ship with

Build and ship dynamic applications using any framework of your choice.

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