Update clients.mdx (modelcontextprotocol#211)

Author: zankar-desai

clients.mdx

@@ -23,6 +23,7 @@ This page provides an overview of applications that support the Model Context Pr
 | [Goose][Goose]                              | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools.                                                             |
 | [LibreChat][LibreChat]                      | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools for Agents                                                   |
 | [mcp-agent][mcp-agent]                      | ❌          | ❌        | ✅      | ⚠️         | ❌    | Supports tools, server connection management, and agent workflows.          |
+| [Microsoft Copilot Studio]         | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools                                                              |
 | [oterm][oterm]                              | ❌          | ❌        | ✅      | ❌         | ❌    | Supports tools.                                                             |
 | [Roo Code][Roo Code]                        | ✅          | ❌        | ✅      | ❌         | ❌    | Supports tools and resources.                                               |
 | [Sourcegraph Cody][Cody]                    | ✅          | ❌        | ❌      | ❌         | ❌    | Supports resources through OpenCTX                                          |
@@ -37,6 +38,7 @@ This page provides an overview of applications that support the Model Context Pr
 | [Apify MCP Tester][Apify MCP Tester]  | ❌         | ❌         | ✅       | ❌          | ❌     | Supports tools |
 
 
+
 [Claude]: https://claude.ai/download
 [Claude Code]: https://claude.ai/code
 [Cursor]: https://cursor.com
@@ -67,6 +69,7 @@ This page provides an overview of applications that support the Model Context Pr
 [Prompts]: https://modelcontextprotocol.io/docs/concepts/prompts
 [Tools]: https://modelcontextprotocol.io/docs/concepts/tools
 [Sampling]: https://modelcontextprotocol.io/docs/concepts/sampling
+[Microsoft Copilot Studio]: https://learn.microsoft.com/en-us/microsoft-copilot-studio/agent-extend-action-mcp
 
 ## Client details
 
@@ -191,6 +194,14 @@ Programmatically assemble prompts for LLMs using [GenAIScript](https://microsoft
 - Implements every pattern defined in [Building Effective Agents](https://www.anthropic.com/research/building-effective-agents).
 - Supports workflow pause/resume signals, such as waiting for human feedback.
 
+### Microsoft Copilot Studio
+[Microsoft Copilot Studio]  is a robust SaaS platform designed for building custom AI-driven applications and intelligent agents, empowering developers to create, deploy, and manage sophisticated AI solutions.
+
+**Key features:**
+- Support for MCP tools
+- Extend Copilot Studio agents with MCP servers
+- Leveraging Microsoft unified, governed, and secure API management solutions 
+
 ### oterm
 [oterm] is a terminal client for Ollama allowing users to create chats/agents.