Langflow

Platforms & APIs 💻 Python ⚖️ MIT 🟢 Actively maintained
154.3k stars

Langflow is an open-source platform for building and deploying AI-powered agents and workflows. It offers a visual builder, API and MCP servers, and supports major LLMs and vector databases. It is for developers who want to create AI applications quickly and integrate them into any stack.

How We Built 2 AI Agents in 8 Mins using Langflow! | No Coding Required

🎬 How We Built 2 AI Agents in 8 Mins using Langflow! | No Coding Required · Builders Central by Zoho Creator

✨ Key features

  • Visual builder interface for quick iteration.
  • Source code access to customize components in Python.
  • Interactive playground for step-by-step testing and refinement.
  • Multi-agent orchestration with conversation management and retrieval.
  • Deploy as an API or export as JSON.
  • Deploy as an MCP server for MCP clients.

🎯 Use cases

  • Build AI agents and workflows visually.
  • Integrate AI workflows into applications via API or MCP.
  • Customize AI components with Python.
  • Test and refine flows interactively.
  • Deploy AI workflows to cloud platforms.

📦 Installation

🧰 Requirements: Requires Python 3.10–3.14 and uv (recommended package manager).

Install locally (recommended)

Requires Python 3.10–3.14 and uv (recommended package manager).

Install

From a fresh directory, run:

uv pip install langflow -U

The latest Langflow package is installed. For more information, see Install and run the Langflow OSS Python package.

Run

To start Langflow, run:

uv run langflow run

Langflow starts at http://127.0.0.1:7860.

That's it! You're ready to build with Langflow! 🎉

🚀 Usage

uv run langflow run

Langflow starts at http://127.0.0.1:7860.

⚠️ Good to know

No limitations are stated in the README.

❓ FAQ

What are the system requirements to install Langflow?

You need Python 3.10–3.14 and uv (recommended package manager).

How do I start Langflow after installation?

Run uv run langflow run and it will start at http://127.0.0.1:7860.

Can I deploy Langflow as an API?

Yes, Langflow allows you to deploy your flows as an API or export them as JSON for Python apps.

Is there a desktop version available?

Yes, Langflow Desktop is available for Windows and macOS and includes all dependencies.

📊 Repository

Stars★ 154,287
Forks🍴 10,020
Open issues🐛 1,033
Last commit🕒 Sep 4, 2026
Created📅 Feb 2023
Language💻 Python
License⚖️ MIT

🤖 Overview, features, install steps and FAQ were generated from the project's README on Sep 4, 2026. Always check the original source before running commands.