Langflow

Langflow is a visual builder for creating AI agents, RAG applications, and MCP servers without heavy coding. It uses flowchart-style diagrams where you connect nodes for models, vector databases, tools, and APIs, then run the resulting flow in production.

Visual flows for complex AI scenarios

The flow editor lets you combine large language models, prompt chains, vector search, and external services in one place. This makes it easier to iterate on prompts, context, and agent logic, with changes visible immediately and the full pipeline clearly represented on the diagram.

LLM, vector database, and MCP support

Langflow works with major LLM providers and popular vector stores. Its component library includes ready-made blocks for connecting tools, APIs, and MCP servers, helping teams integrate workflows into existing infrastructure faster.

Built for product teams and production use

Langflow is designed for product and AI teams where both engineers and analysts need to understand the system. Projects can be versioned, moved between environments, and used as a foundation for full AI services and internal assistants.