langflow/README.md

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> [!CAUTION]
> Users must update to Langflow >= 1.3 to protect against [CVE-2025-3248](https://nvd.nist.gov/vuln/detail/CVE-2025-3248).

[Langflow](https://langflow.org) is a powerful tool for building and deploying AI-powered agents and workflows. It provides developers with both a visual authoring experience and built-in API and MCP servers that turn every workflow into a tool that can be integrated into applications built on any framework or stack. Langflow comes with batteries included and supports all major LLMs, vector databases and a growing library of AI tools.

## ✨ Highlight features

- **Visual builder interface** to quickly get started and iterate .
- **Source code access** lets you customize any component using Python.
- **Interactive playground** to immediately test and refine your flows with step-by-step control.
- **Multi-agent orchestration** with conversation management and retrieval.
- **Deploy as an API** or export as JSON for Python apps.
- **Deploy as an MCP server** and turn your flows into tools for MCP clients.
- **Observability** with LangSmith, LangFuse and other integrations.
- **Enterprise-ready** security and scalability.

## ⚡️ Quickstart

Langflow requires [Python 3.10 to 3.13](https://www.python.org/downloads/release/python-3100/) and [uv](https://docs.astral.sh/uv/getting-started/installation/).

1. To install Langflow, run:

```shell
uv pip install langflow -U
```

2. To run Langflow, run:

```shell
uv run langflow run
```

3. Go to the default Langflow URL at `http://127.0.0.1:7860`.

For more information about installing Langflow, including Docker and Desktop options, see [Install Langflow](https://docs.langflow.org/get-started-installation).

## 📦 Deployment

Langflow is completely open source and you can deploy it to all major deployment clouds. To learn how to use Docker to deploy Langflow, see the [Docker deployment guide](https://docs.langflow.org/deployment-docker).

## ⭐ Stay up-to-date

Star Langflow on GitHub to be instantly notified of new releases.

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## 👋 Contribute

We welcome contributions from developers of all levels. If you'd like to contribute, please check our [contributing guidelines](./CONTRIBUTING.md) and help make Langflow more accessible.

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## ❤️ Contributors

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