9690e69e86
* fix(security): remove the disabled Python Code Structured tool component Follow-up to #13538, which neutered PythonCodeStructuredTool to a non-executable stub "for one release cycle, full removal later." This completes that removal. - Delete the component and its registration in lfx.components.tools. - Drop its entry from the component index (num_components 355 -> 354, sha256 recomputed surgically) and from stable_hash_history.json. - Remove its 18 i18n keys from every locale file. - Replace the dedicated stub unit test with a removal test in test_dynamic_import_integration.py. - Add a regressions entry to regressions/1.10.x.yaml. The unauthenticated public-build RCE fix (report H1-3754930) is unaffected: PythonCodeStructuredTool stays in CODE_EXECUTION_COMPONENT_TYPES, so build_public_tmp still rejects any saved or crafted flow that carries the type. instantiate_class execs the node's stored `code` field regardless of whether the class still exists, so the type-name block -- not the class -- is what closes the path. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * docs: document removal * docs: typo * Apply suggestion from @mendonk Co-authored-by: Mendon Kissling <59585235+mendonk@users.noreply.github.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Co-authored-by: Mendon Kissling <59585235+mendonk@users.noreply.github.com>
Langflow is a powerful platform 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.
🖥️ Langflow Desktop
Langflow Desktop is the easiest way to get started with Langflow. All dependencies are included, so you don't need to manage Python environments or install packages manually. Available for Windows and macOS.
⚡️ Quickstart
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! 🎉
📦 Other install options
Run from source
If you've cloned this repository and want to contribute, run this command from the repository root:
make run_cli
For more information, see DEVELOPMENT.md.
Docker
Start a Langflow container with default settings:
docker run -p 7860:7860 langflowai/langflow:latest
Langflow is available at http://localhost:7860/. For configuration options, see the Docker deployment guide.
🛡️ Security
For security information, see our Security Policy.
🚀 Deployment
Langflow is completely open source and you can deploy it to all major deployment clouds. To learn how to deploy Langflow, see our Langflow deployment guides.
⭐ Stay up-to-date
Star Langflow on GitHub to be instantly notified of new releases.
👋 Contribute
We welcome contributions from developers of all levels. If you'd like to contribute, please check our contributing guidelines and help make Langflow more accessible.