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github.com/langflow-ai/langflow @v1.10.1 sqlite

repository ↗ · DeepWiki ↗ · release v1.10.1 ↗
35,845 symbols 155,771 edges 5,477 files 16,960 documented · 47%
README

Langflow logo

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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.

📥 Download Langflow Desktop

⚡️ 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.

Star Langflow

👋 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.


Star History Chart

❤️ Contributors

langflow contributors

Extension points exported contracts — how you extend this code

CapabilityTag (Interface)
Tag descriptor consumed by ModelRow.
src/frontend/src/modals/modelProviderModal/components/ModelSelection.tsx
CardsProps (Interface)
(no doc)
docs/src/components/Cards.tsx
FlowBuilderWelcomeState (Interface)
* Coordinates the welcome overlay that surfaces on a freshly-created empty * flow with the AssistantPanel hand-off: *
src/frontend/src/stores/flowBuilderWelcomeStore.ts
VideoProps (Interface)
(no doc)
docs/src/components/Video.tsx
Element (Interface)
(no doc)
src/frontend/src/vite-env.d.ts
StepProps (Interface)
(no doc)
docs/src/components/Steps.tsx
ElementClass (Interface)
(no doc)
src/frontend/src/vite-env.d.ts
StepsProps (Interface)
(no doc)
docs/src/components/Steps.tsx

Core symbols most depended-on inside this repo

get
called by 2376
src/lfx/src/lfx/mcp/client.py
append
called by 2022
src/backend/base/langflow/services/flow_events/service.py
get
called by 1023
src/lfx/src/lfx/cli/serve_app.py
post
called by 752
src/backend/base/langflow/plugin_routes.py
get
called by 750
src/backend/base/langflow/api/v1/mappers/deployments/registry.py
map
called by 674
src/lfx/src/lfx/components/firecrawl/firecrawl_map_api.py
cn
called by 579
src/frontend/src/utils/utils.ts
dumps
called by 575
src/lfx/src/lfx/graph/graph/base.py

Shape

Method 16,933
Function 13,047
Class 4,125
Route 1,111
Interface 621
Enum 8

Languages

Python89%
TypeScript11%

Modules by API surface

src/backend/tests/unit/services/deployment/test_watsonx_orchestrate.py412 symbols
src/backend/tests/unit/base/mcp/test_mcp_util.py252 symbols
src/backend/tests/unit/api/v1/test_deployment_sync.py183 symbols
src/backend/tests/unit/api/v1/test_deployment_route_handlers.py182 symbols
src/backend/tests/unit/api/v1/test_deployment_mapper_watsonx.py164 symbols
src/backend/tests/unit/test_memory_bases.py156 symbols
src/lfx/tests/unit/cli/test_serve_app.py150 symbols
src/lfx/src/lfx/graph/graph/base.py147 symbols
src/backend/tests/unit/test_logger.py144 symbols
src/lfx/src/lfx/custom/custom_component/component.py143 symbols
src/lfx/tests/unit/run/test_base.py129 symbols
src/lfx/tests/unit/test_flow_builder.py127 symbols

Dependencies from manifests, versioned

@biomejs/biome2.1.1 · 1×
@chakra-ui/number-input2.1.2 · 1×
@chakra-ui/system2.6.2 · 1×
@code-hike/mdx0.9.0 · 1×
@docusaurus/core3.9.2 · 1×
@docusaurus/module-type-aliases3.9.2 · 1×
@docusaurus/plugin-client-redirects3.9.2 · 1×
@docusaurus/plugin-google-tag-manager3.9.2 · 1×
@docusaurus/preset-classic3.9.2 · 1×
@easyops-cn/docusaurus-search-local0.45.0 · 1×
@emotion/react11.14.0 · 1×
@emotion/styled11.14.1 · 1×

Datastores touched

langflowDatabase · 1 repos
dbDatabase · 1 repos
(mysql)Database · 1 repos
test_dbDatabase · 1 repos
custom_dbDatabase · 1 repos
dbDatabase · 1 repos
(mongodb)Database · 1 repos
appDatabase · 1 repos

For agents

$ claude mcp add langflow \
  -- python -m otcore.mcp_server <graph>

⬇ download graph artifact