Langflow
A visual builder for AI agents and workflows that deploys each flow as an API or an MCP server.
Sources and review
Checked against public documentation on . Suitability guidance is our editorial judgment; this is not a performance benchmark or an endorsement.
Teams that want to prototype agent workflows visually and ship them as an API or MCP tool.
About Langflow
Langflow is an open-source platform for building and deploying AI agents and workflows. Flows are assembled in a visual editor, every component can be customised in Python, and an interactive playground tests them step by step; finished flows deploy as an API, export as JSON, or run as an MCP server that exposes them as tools. It supports the major LLMs and vector databases, integrates with LangSmith and Langfuse for observability, and offers a desktop app for Windows and macOS.
Langflow is listed in this index written primarily in Python, with 156k stars on GitHub. Its latest recorded repository push was in November 2026; that is not an ASE editorial review date.
uv pip install langflow -U
