FastGPT
A self-hosted AI agent builder with visual workflows and document retrieval. Runs through Docker, with hosted and commercial editions also available.
FastGPT is a self-hosted AI agent builder for teams that want assistants to answer questions using company documents and carry out business workflows. Its visual editor connects model calls, knowledge retrieval and tools into applications for customer support, internal knowledge search and document review. You can run the platform on your own server through Docker or use the vendor's hosted service.
The knowledge base accepts PDFs, Word documents, spreadsheets, Markdown and web content. It supports hybrid search and reranking to find relevant passages, and answers can include citations. Teams can combine multiple knowledge bases and edit or delete individual text segments, which matters when the underlying documents contain outdated or incorrect information.
Workflows support agent skills, plugins, user interaction and basic RPA actions. Bidirectional MCP support and APIs connect agents with external tools and business systems. Shareable chat windows and iframe embedding let teams put an assistant inside an existing site or application.
For testing and oversight, FastGPT includes retrieval tests, application evaluations, call-chain logs and conversation review with data annotation. The vendor advertises SSO and role-based access controls for its enterprise portal; check the edition before relying on them.
Community self-hosting sits alongside hosted and commercial offerings. The repository uses the custom FastGPT Open Source License: it permits commercial use as a backend service, prohibits offering it as a SaaS service, and requires copyright notices for commercial services without separate commercial authorization.
