f76d3e22dd
* feat(security): add failed login logging with IP tracking and comprehensive tests * fix: remove PII from login logs and fix structlog format * docs: agent improvements (#13269) * docs: add structured output for agents * docs: add structured output note * docs: clarify both agent outputs and add release notes * docs: when langflow sends events to the playground and chat history * fix(playground): expand session checkbox click target to full row height (#13349) * fix(playground): expand session checkbox click target to full row height The selectable-row checkbox wrapper was ``w-4 h-4`` (16x16 px) but the row is ``h-8`` (32 px). The 8 px band above and the 8 px band below the visible icon were dead zones that bubbled to the row's ``toggleVisibility`` and navigated to the session instead of toggling selection — exactly the accidental-navigation UX the bug ticket describes. Grow the wrapper to ``w-4 h-8`` so the click target captures the full row height. Width stays narrow so the text alignment is unchanged; the icon itself stays ``h-4 w-4``, centered via the existing ``flex items-center justify-center``. Visual position is identical. Adds ``__tests__/session-selector-checkbox-click-target.test.tsx`` (3 cases): wrapper className guard (h-8 + w-4, not h-4), click on the wrapper outside the icon triggers selection without bubbling to toggleVisibility, and click on the inner icon still toggles selection. * test(playground): drop checkbox-click-target test file (not needed per review) * [autofix.ci] apply automated fixes * test: align session-selector checkbox assertions with full-height click target --------- Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> * fix: improve trace search functionality (#13383) * improve trace search functionality * [autofix.ci] apply automated fixes --------- Co-authored-by: Olayinka Adelakun <olayinkaadelakun@Olayinkas-MacBook-Pro.local> Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> * test: fix test_login_logs_real_output_format to use mocking - Updated test to use patch() instead of capsys for consistency - Verifies structlog kwargs format (not nested extra dict) - All 7 login logging tests now passing * feat: Add IP-based rate limiting to login endpoint - Add slowapi dependency for rate limiting functionality - Implement rate limiting service with configurable limits - Apply rate limiter to /login endpoint (default: 5 attempts/minute per IP) - Add custom exception handler for rate limit exceeded (HTTP 429) - Support both in-memory (default) and Redis storage backends - Add comprehensive test suite with 100% coverage - Document configuration in .env.example Security improvements: - Prevents brute force attacks on login endpoint - Structured logging without PII (logs client_ip, not user data) - Graceful degradation with swallow_errors=True - Proper X-Forwarded-For header handling for proxied requests Configuration: - LANGFLOW_RATE_LIMIT_PER_MINUTE: requests per minute (default: 5) - LANGFLOW_RATE_LIMIT_STORAGE: storage backend (default: memory://) - LANGFLOW_RATE_LIMIT_HEADERS_ENABLED: enable rate limit headers (default: false) * security: add proxy-aware IP extraction for rate limiting - Add LANGFLOW_RATE_LIMIT_TRUST_PROXY configuration - Default to secure get_remote_address (prevents header spoofing) - Enable get_client_ip when behind trusted proxies - Add comprehensive tests for both configurations - Maintain 100% test coverage (15 tests passing) * refactor(rate-limit): address PR review feedback - migrate to Settings model, fix IP security, add test coverage * fix: disable rate limiting in tests to prevent 429 errors - Add LANGFLOW_RATE_LIMIT_ENABLED environment variable control - Disable rate limiting by default in tests via session-scoped fixture - Rate limit tests explicitly enable it via function-scoped fixture - Fixes test failures caused by sequential login attempts hitting 5/min limit * fix: refactor login rate limiting to avoid settings initialization race condition --------- Co-authored-by: Janardan S Kavia <janardanskavia@Janardans-MacBook-Pro.local> Co-authored-by: Mendon Kissling <59585235+mendonk@users.noreply.github.com> Co-authored-by: keval shah <kevalvirat@gmail.com> Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> Co-authored-by: olayinkaadelakun <olayinka.adelakun@ibm.com> Co-authored-by: Olayinka Adelakun <olayinkaadelakun@Olayinkas-MacBook-Pro.local>
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.