Low-code visual builder for agentic and RAG applications with built-in API and MCP server
Key Features
Multi-Agent
Single Agent
Human-in-the-Loop
Streaming
Async Support
Type Safe
Short-Term Memory
Long-Term Memory
Shared Memory
Plugin System
Custom Tools
MCP Protocol
A2A Protocol
Code Execution
Web Browsing
File System Access
Sandboxing
Guardrails
Structured Output
DAG Workflows
Visual Builder
CLI
API Server
Self-Hosted
Cloud Hosted
Community Feedback
Strengths
- Largest community in category (146k stars)
- Powerful visual editor
- Multi-agent support (ALTK, CUGA)
- Dual MCP client and server
- Active development
Weaknesses
- DataStax hosted deprecated March 2026, shutting April 2026
- IBM acquisition creates uncertainty
- Complex flows hard to debug
Langflow Details
| Organization | Langflow (DataStax / IBM) |
| Organization Type | Company |
| Category | Platform |
| Subcategory | Low code |
| Deployment | Self-Hosted |
| Primary Language | Python |
| Runtime | Python 3.10+ |
| License | MIT |
| Commercial Use | Unrestricted |
| Install Command | pip install langflow |
| GitHub Stars | 146,168 |
| GitHub Forks | 8,649 |
| Release Cadence | Biweekly |
| Maturity | Stable |
| Pricing Model | Free |
| Free Tier | Fully free and open-source (MIT) |
| Self-Hosted Free | Yes |
| Cost Model | free + LLM costs |
| Community Size | Massive (146k stars) |
| Community Activity | Very active |
| Sentiment | Positive |
| GPU Required | No |
| Confidence | High |
| Research Date | 2026-03-24 |
| LLM Providers | OpenAI, Anthropic, Google, Ollama, Azure, AWS, local models |
| API Keys Required | LLM provider API key |
Use Cases
- Visual AI workflow development
- RAG application building
- Multi-agent system design
- MCP server creation
Similar Tools
When to Use
Best for: Visual AI workflow development with MCP server capabilities
Avoid when: Need stable managed cloud hosting — DataStax hosted shutting down
Original data from HuggingFace, OpenCompass and various public git repos.
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Release v20260324