What is AppPlatform used for?

AppPlatform is a Java-based low-code platform for building LLM applications and agents with a visual workflow editor, plugins and a shared app store. It is a good fit for building agent and RAG apps without heavy coding, sharing reusable AI components across projects, and prototyping LLM workflows with a visual tool.

Is AppPlatform open source?

Yes. AppPlatform is open source under the MIT licence. Its source code is on GitHub at ModelEngine-Group/app-platform and is written mainly in Java.

Yes. AppPlatform is open source, so the software itself is free to use.

Can I self-host AppPlatform?

Yes. AppPlatform can be self-hosted on your own server or infrastructure.

What are some alternatives to AppPlatform?

Similar open-source tools in the AI Infrastructure category include Dify, Langflow and RAGFlow. SaaS products in the same category include Amazon Bedrock, Ballast and BlazeDocs.

Is AppPlatform actively maintained?

Yes. The most recent commit to AppPlatform was on 29 September 2026, and the latest release is v1.3.2, published on 29 January 2026. The project has 1.5k stars on GitHub.

AppPlatform: open-source AI infrastructure

About AppPlatform

AppPlatform is a project for developing large language model applications using declarative programming and low-code tools. It targets both software engineers and product managers, with the goal of covering the path from idea to deployment of AI applications. The README and descriptions are written in Chinese.

The backend is built on the FIT framework with a plugin architecture, with an application management module for creating, debugging, running and maintaining AI apps, and component nodes for orchestrating flows, which run on the Waterflow framework. The React front end provides a visual workflow editor, an app marketplace, smart forms rendered from JSON Schema and plugin management. Apps can be functions, RAG pipelines or agents, stored in a shared Store as reusable tools.

Operators in Java and Python are supported, and multiple models can be combined in one flow. It is licensed under MIT and starts with Docker Compose, with documented hardware needs of a few CPU cores and several gigabytes of memory. The README warns that the open-source deployment has no authentication for plugin uploads, so it should not be exposed to untrusted users or the public internet.

Key features

Low-code visual workflow editor
Multi-model orchestration in one flow
Plugin upload and management
App marketplace and shared Store
Smart forms generated from JSON Schema
Operators in Java and Python

Good fit for

→Building agent and RAG apps without heavy coding
→Sharing reusable AI components across projects
→Prototyping LLM workflows with a visual tool

Built with: Java
Tags: low-code; llm; ai-agents; workflow; java; rag; plugins; docker; chinese

AppPlatform: questions and answers

What is AppPlatform used for?: AppPlatform is a Java-based low-code platform for building LLM applications and agents with a visual workflow editor, plugins and a shared app store. It is a good fit for building agent and RAG apps without heavy coding, sharing reusable AI components across projects, and prototyping LLM workflows with a visual tool.
Is AppPlatform open source?: Yes. AppPlatform is open source under the MIT licence. Its source code is on GitHub at ModelEngine-Group/app-platform and is written mainly in Java.
Is AppPlatform free?: Yes. AppPlatform is open source, so the software itself is free to use.
Can I self-host AppPlatform?: Yes. AppPlatform can be self-hosted on your own server or infrastructure.
What are some alternatives to AppPlatform?: Similar open-source tools in the AI Infrastructure category include Dify, Langflow and RAGFlow. SaaS products in the same category include Amazon Bedrock, Ballast and BlazeDocs.
Is AppPlatform actively maintained?: Yes. The most recent commit to AppPlatform was on 29 September 2026, and the latest release is v1.3.2, published on 29 January 2026. The project has 1.5k stars on GitHub.