Tool & Platform
Intermediate
Dify · AI Agent Platforms
An open-source LLM app development platform with visual RAG and workflow orchestration, self-hostable, free community edition — a mainstream pick for knowledge bases and agents.
Tool & Platform
Intermediate
n8n · AI Agent Platforms
An open-source automation workflow tool with 400+ app integrations — wire AI into daily automation. Self-hosting is free.
Tool & Platform
Intermediate
FastGPT · AI Agent Platforms
An open-source knowledge-base Q&A platform with out-of-the-box RAG orchestration and visual management, thorough Chinese docs — good for enterprise knowledge bases.
Tool & Platform
Beginner
Zapier · AI Agent Platforms
The largest overseas automation integration platform, connecting thousands of apps; Zapier AI helps design flows. Free tier has limited monthly tasks.
Tool & Platform
Intermediate
Make · AI Agent Platforms
A visual automation platform with canvas-style orchestration of complex flows, strong branching and error handling. Free tier has limited monthly operations.
Tool & Platform
Intermediate
阿里巴巴 · AI Agent Platforms
Alibaba's one-stop LLM development platform — model APIs, knowledge bases and app orchestration, with free credits for new users. The official entry point for Qwen APIs.