feat: add Den to LLM Applications

Author: us

README.md

@@ -537,6 +537,7 @@
 - [llm-ui](https://github.com/llm-ui-kit/llm-ui) - A React library for building LLM UIs.
 - [Wordware](https://www.wordware.ai) - A web-hosted IDE where non-technical domain experts work with AI Engineers to build task-specific AI agents. We approach prompting as a new programming language rather than low/no-code blocks.
 - [Wallaroo.AI](https://github.com/WallarooLabs) - Deploy, manage, optimize any model at scale across any environment from cloud to edge. Let's you go from python notebook to inferencing in minutes.
+- [Den](https://github.com/us/den) - Self-hosted sandbox runtime for AI/LLM agents. Isolated Docker containers for secure code execution with REST API and MCP server support.
 - [Dify](https://github.com/langgenius/dify) - An open-source LLM app development platform with an intuitive interface that streamlines AI workflows, model management, and production deployment.
 - [LazyLLM](https://github.com/LazyAGI/LazyLLM) - An open-source LLM app for building multi-agent LLMs applications in an easy and lazy way, supports model deployment and fine-tuning.
 - [MemFree](https://github.com/memfreeme/memfree) - Open Source Hybrid AI Search Engine, Instantly Get Accurate Answers from the Internet, Bookmarks, Notes, and Docs. Support One-Click Deployment