Langflow
Runtime & OrchestrationOpen source · MIT★ 155,496（2026-10-04）Self-hosted
Visual canvas for building LangChain-based agents, exportable as an API or MCP server.
Langflow is an MIT-licensed visual builder for LangChain-based agents, sponsored by DataStax (acquired by IBM in May 2025); every node on the canvas can be opened and edited as Python, and a flow can be exported as an OpenAI-compatible API or an MCP server.
Key facts
| Category | Runtime & Orchestration |
|---|---|
| License | MIT |
| Language | Python |
| Self-hosted | Yes |
| GitHub stars | 155,496 (2026-10-04) |
| Last push | 2026-10-04 |
| Last verified | 2026-10-04 |
| Repository | https://github.com/langflow-ai/langflow |
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