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labring/FastGPT

FastGPT is an open-source AI Agent building platform with data processing, RAG knowledge bases, and visual workflow orchestration for LLM apps.

Open-source alternative to:DifyCoze

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What is it?

FastGPT is a platform for building LLM-based applications, especially question-answering systems backed by a knowledge base. It handles importing and processing documents, retrieval-augmented generation (RAG) with hybrid search and reranking, and calling models from a single app.

Applications are assembled in a visual Flow editor that supports conversation and plugin workflows, agent skill orchestration, user interaction steps, and bidirectional MCP. Built-in tools cover single-point knowledge base search tests, full call-chain logs, application evaluation, and citation feedback during chats.

For operations, apps can be shared through a login-free link or embedded in a page with iframe, and conversation records can be reviewed and annotated. It can be used through the hosted cloud service or self-deployed with Docker or Sealos.

Key features

  • 01Visual Flow editor for chat and plugin workflows, including basic RPA nodes.
  • 02RAG knowledge bases with hybrid search and reranking.
  • 03Imports TXT, Markdown, HTML, PDF, Docx, PPTX, CSV and XLSX files, plus URLs.
  • 04Bidirectional MCP support and agent skill orchestration.
  • 05Full call-chain logs and application evaluation for debugging.
  • 06Login-free share links and iframe embedding for publishing apps.

Use cases

  • Building an internal question-answering assistant over company documents.
  • Creating customer support bots backed by a product knowledge base.
  • Prototyping RAG pipelines and comparing retrieval results before deployment.
  • Self-hosting an AI app platform that keeps data on your own servers.

Quick start

  1. 1

    Run the official install script from the README to fetch the config files

  2. 2

    Start FastGPT with Docker Compose

    docker compose up -d
  3. 3

    Open http://localhost:3000 and log in with the default account (root / 1234) once startup completes

Things to know

  • The FastGPT Open Source License does not permit offering it as a SaaS service without a commercial license.
  • The repository metadata lists the license as unspecified (NOASSERTION), so check the LICENSE file before commercial use.

Topics

#rag#llm#workflow#agent#knowledge-base#mcp#openai#nextjs#claude#deepseek

FAQ

What is FastGPT?
FastGPT is an open-source AI Agent building platform with data processing, RAG knowledge bases, and visual workflow orchestration for LLM apps. FastGPT is a platform for building LLM-based applications, especially question-answering systems backed by a knowledge base. It handles importing and processing documents, retrieval-augmented generation (RAG) with hybrid search and reranking, and calling models from a single app.
Is FastGPT free to use? What license does it have?
FastGPT is open source under the Other license. Check the license terms before using it in commercial products.
Is FastGPT still maintained?
Actively maintained. The last commit to FastGPT was on Oct 20, 2026.
What can I use FastGPT for?
Building an internal question-answering assistant over company documents. Creating customer support bots backed by a product knowledge base. Prototyping RAG pipelines and comparing retrieval results before deployment. Self-hosting an AI app platform that keeps data on your own servers.
How do I install FastGPT?
Run the official install script from the README to fetch the config files Start FastGPT with Docker Compose: docker compose up -d Open http://localhost:3000 and log in with the default account (root / 1234) once startup completes
Where can I get FastGPT?
The source code and installation instructions are on GitHub: https://github.com/labring/FastGPT

Summary generated by AI from the project's README. GitHub stats refresh daily.

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