Add Langflow as MCP Client example (modelcontextprotocol#1346)

Co-authored-by: adam jones <[email protected]>
Co-authored-by: Adam Jones <[email protected]>
Co-authored-by: Claude <[email protected]>

Author: 3 people

docs/clients.mdx

@@ -52,6 +52,7 @@ This page provides an overview of applications that support the Model Context Pr
 | [JetBrains AI Assistant][JetBrains AI Assistant] | ❌          | ❌        | ✅      | ❌                     | ❌         | ❌    | ❓            |
 | [Kilo Code][Kilo Code]                           | ✅          | ❌        | ✅      | ✅                     | ❌         | ❌    | ❓            |
 | [Klavis AI Slack/Discord/Web][Klavis AI]         | ✅          | ❌        | ✅      | ❓                     | ❌         | ❌    | ❓            |
+| [Langflow][Langflow]                             | ❌          | ❌        | ✅      | ❓                     | ❌         | ❌    | ❓            |
 | [LibreChat][LibreChat]                           | ❌          | ❌        | ✅      | ❓                     | ❌         | ❌    | ❓            |
 | [LM Studio][LM Studio]                           | ❌          | ❌        | ✅      | ❓                     | ❌         | ❌    | ❓            |
 | [Lutra][Lutra]                                   | ✅          | ✅        | ✅      | ❓                     | ❌         | ❌    | ❓            |
@@ -631,6 +632,20 @@ Delegate tasks to [GitHub Copilot coding agent](https://docs.github.com/en/copil
 
 - [Demo video showing MCP usage in Slack/Discord](https://youtu.be/9-QQAhrQWw8)
 
+### Langflow
+
+Langflow is an open-source visual builder that lets developers rapidly prototype and build AI applications, it integrates with the Model Context Protocol (MCP) as both an MCP server and an MCP client.
+
+**Key features:**
+
+- Full support for using MCP server tools to build agents and flows.
+- Export agents and flows as MCP server
+- Local & remote server connections for enhanced privacy and security
+
+**Learn more:**
+
+- [Demo video showing how to use Langflow as both an MCP client & server](https://www.youtube.com/watch?v=pEjsaVVPjdI)
+
 ### LibreChat
 
 [LibreChat](https://github.com/danny-avila/LibreChat) is an open-source, customizable AI chat UI that supports multiple AI providers, now including MCP integration.