
Claude Desktop
Desktop · Freemium · Proprietary
Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.
universal-tool-calling-protocol/utcp-mcp
A universal, all-in-one MCP server that brings the full power of the Universal Tool Calling Protocol (UTCP) to the MCP ecosystem.
npx @utcp/mcp-bridge{
"mcpServers": {
"utcp": {
"command": "npx",
"args": [
"@utcp/mcp-bridge"
],
"env": {
"UTCP_CONFIG_FILE": "<UTCP_CONFIG_FILE>"
}
}
}
}UTCP_CONFIG_FILEZero installation - Works via npx
Universal compatibility - Works with any MCP client
Dynamic configuration - Update tools without restarting
Environment isolation - Each project can have its own config
Comprehensive tool management - Register, search, call, and inspect tools
Web interface available - See web_ui_utcp_mcp_bridge/
register_manual
Register new UTCP manuals/APIs
deregister_manual
Remove registered manuals
call_tool
Execute any registered UTCP tool
search_tools
Find tools by description
get_required_keys_for_tool
Get required environment variables
tool_info
Get complete tool information and schema
Details on this page are taken from the project's README. Open README
Clients mentioned in this server's README:

microsoft/playwright
Playwright is a framework for web automation and testing. It drives Chromium, Firefox, and WebKit with a single API — in your tests, in your scripts, and as a tool for AI agents.

yamadashy/repomix
Repomix is a tool that packs a codebase into an AI-friendly format, supporting local and remote repository processing and providing code compression, security checks and multiple output formats.

bytedance/UI-TARS-desktop
TARS is ByteDance's multimodal AI agent stack, shipping two projects: Agent TARS (a CLI and Web UI agent built on MCP) and UI-TARS-desktop (a desktop GUI agent).

ahujasid/blender-mcp
formerly blender-mcp — the PyPI package is now mcp-for-blender. Existing setups keep working; no config change is required. Read more.

microsoft/playwright-mcp
A Model Context Protocol (MCP) server that provides browser automation capabilities using Playwright. This server enables LLMs to interact with web pages through structured accessibility snapshots, bypassing the need for screenshots or visually-tuned models.

comet-ml/opik
Opik is the open-source LLM observability and evaluation platform for AI agent tracing, LLM evaluation, prompt management, and production monitoring. Built by Comet. Apache-2.0 licensed, free to self-host the full platform, with 20,000+ GitHub stars.