FastGPT
by labring
FastGPT is a platform for building AI assistants that answer questions from your own documents. It includes a visual workflow editor, document processing and search, and can be self-hosted or used as a cloud service.
- Stars
- 29.9k
- Licence
- Apache-2.0
- Runs on
- A small server
- Setup
- Moderate
- Language
- TypeScript
- Age
- 1342 days
What you can do with it
- Upload documents such as PDFs, Word files and spreadsheets to build a searchable knowledge base for a chatbot
- Design AI workflows visually, including tool calls and MCP connections, without writing much code
- Embed a finished assistant on a website with an iframe or share it through a login-free link
Make money with it
A freelancer could set up and maintain custom document-based chatbots for local businesses as a paid service, using the self-hosted version for their own use.
An idea, not financial advice. Check the licence before charging for anything built on it.
Ways a business could use it
- Build a customer support assistant that answers from your product manuals and FAQs, cutting down on repetitive enquiries
- Create an internal knowledge assistant so staff can search company documents and procedures quickly
Can you use it commercially?
Free to use, change and sell (Apache 2.0 in the licence file). Some folders may carry other terms.
Not legal advice. Read the project's licence file before building a product on it.
Getting it running
Run the install script from the README, then start it with Docker Compose and open it at localhost:3000.
Follow the official instructions in the project README.
Things to check
- Licence is a custom FastGPT Open Source Licence, not a standard one
- Offering it to others as a SaaS service is not allowed without a commercial licence
- Commercial use requires keeping copyright notices
- Default login is root/1234 and must be changed
- Needs API keys for language models, which usually cost money
- README and documentation are mainly in Chinese
Who's talking about it
Checked 28 Oct 2026. Summary drafted by AI from the project's README.
