# Keelson > Keelson is a PaaS for deploying and operating internal apps safely, especially apps created with AI coding tools. This file is a curated map of Keelson documentation for LLMs. For deployment constraints and requirements, refer to the Keelson Deploy Spec first. For configuration, refer to the keelson.yaml reference. ## What is Keelson - A PaaS for deploying web apps and scheduled jobs written in Python, Node.js (JavaScript/TypeScript), and Go - Built-in authentication and access control for internal and team apps - Designed so that non-developers can deploy and operate apps using AI agents such as Claude Code and Codex without managing infrastructure directly - Pricing is based on app capacity and developers rather than end-user seats. Viewer count does not affect billing in the same way as seat-based SaaS ## Keelson Deploy Spec (canonical reference for deployment) - [Keelson Deploy Spec](https://keelson.dev/docs/reference/deploy-spec/) - [Keelson Deploy Spec (raw text)](https://keelson.dev/docs/reference/deploy-spec.txt) ## Docs ### Getting Started - [What is Keelson](https://keelson.dev/docs/getting-started/what-is-keelson/) - [Quickstart](https://keelson.dev/docs/getting-started/quickstart/) - [Core Concepts](https://keelson.dev/docs/getting-started/core-concepts/) ### Building Apps - [Supported App Types](https://keelson.dev/docs/building-apps/supported-app-types/) - [Build and Runtime](https://keelson.dev/docs/building-apps/build-and-runtime/) - [Persistent Storage](https://keelson.dev/docs/building-apps/persistent-storage/) - [Scheduled Jobs](https://keelson.dev/docs/building-apps/scheduled-jobs/) ### Deploy and Configuration - [Deploy](https://keelson.dev/docs/deploy/deploy/) - [Environment Variables and Secrets](https://keelson.dev/docs/deploy/environment-variables/) - [Public URL](https://keelson.dev/docs/deploy/public-url/) - [Custom Domains](https://keelson.dev/docs/deploy/custom-domains/) - [IP Allowlist](https://keelson.dev/docs/deploy/ip-allowlist/) ### Reference - [keelson.yaml](https://keelson.dev/docs/reference/keelson-yaml-reference/)