Add chatbox to client list (modelcontextprotocol#1513)

* Add chatbox to client list

* Fix format

Author: wong2

docs/clients.mdx

@@ -25,6 +25,7 @@ This page provides an overview of applications that support the Model Context Pr
 | [BeeAI Framework][BeeAI Framework]               | ❌          | ❌        | ✅      | ❌                     | ❌         | ❌    | ❓            |
 | [BoltAI][BoltAI]                                 | ❌          | ❌        | ✅      | ❓                     | ❌         | ❌    | ❓            |
 | [Call Chirp][Call Chirp]                         | ❌          | ✅        | ✅      | ❌                     | ❌         | ❌    | ❓            |
+| [Chatbox][Chatbox]                               | ❌          | ❌        | ✅      | ❌                     | ❌         | ❌    | ❌            |
 | [ChatGPT][ChatGPT]                               | ❌          | ❌        | ✅      | ❌                     | ❌         | ❌    | ❓            |
 | [ChatWise][ChatWise]                             | ❌          | ❌        | ✅      | ❌                     | ❌         | ❌    | ❓            |
 | [Claude.ai][Claude.ai]                           | ✅          | ✅        | ✅      | ❌                     | ❌         | ❌    | ❓            |
@@ -117,6 +118,7 @@ This page provides an overview of applications that support the Model Context Pr
 [BeeAI Framework]: https://i-am-bee.github.io/beeai-framework
 [BoltAI]: https://boltai.com
 [Call Chirp]: https://www.call-chirp.com
+[Chatbox]: https://chatboxai.app
 [ChatGPT]: https://chatgpt.com
 [ChatWise]: https://chatwise.app
 [Claude.ai]: https://claude.ai
@@ -344,6 +346,16 @@ It uses plain JavaScript (old-school style) and is hosted on Apify, allowing you
 - MCP Tools for voice AI agents
 - Remote MCP servers support
 
+### Chatbox
+
+Chatbox is a better UI and desktop app for ChatGPT, Claude, and other LLMs, available on Windows, Mac, Linux, and the web. It's open-source and has garnered 37K stars⭐ on GitHub.
+
+**Key features:**
+
+- Tools support for MCP servers
+- Support both local and remote MCP servers
+- Built-in MCP servers marketplace
+
 ### ChatGPT
 
 ChatGPT is OpenAI's AI assistant that provides MCP support for remote servers to conduct deep research.