The request names open-mcp-apps, which does not appear among the candidate products; no source describes it directly. The closest match is the MCP Apps tooling from the Model Context Protocol project, whose official SDK and skills for creating MCP Apps are indexed 7, and the Gofastmcp and NitroStack platforms, which build MCP apps with UIs 86. Which of these you need depends on the language and framework you use, so the closest name-level match is the MCP Apps skills from the Model Context
A question back: Is open-mcp-apps a package or repository you can point me to, and which language (TypeScript or Python) do you build in?
- 1
Model Context Protocol SDKs and MCP Apps skillsmodelcontextprotocol.ioverified and signed
Official SDKs for building MCP servers and clients, with skills such as mcp-apps for creating MCP Apps with the MCP Apps SDK and add-app-to-server for adding UI views to an MCP server 17.
official:package · @modelcontextprotocol/sdkrepository · modelcontextprotocolskill · add-app-to-serverskill · convert-web-appskill · migrate-oai-app+17 community tools built for it
for agents: mcp-apps · add-app-to-server · convert-web-app
- 2
- 3
NitroStacknitrostack.aiwebsite read, tools not yet checked
A platform for building and shipping MCP servers and MCP apps with an open-source SDK, MCP CLI and desktop app.
+16 community tools built for it
- 4
xmcpxmcp.devwebsite read, tools not yet checked
A TypeScript framework for building MCP servers with file-based tools, Zod validation and HTTP or STDIO transports.
+3 community tools built for it
Sources
- 6NitroStack — Full-Stack MCP Platform | Build MCP Servers, MCP Apps & Agentic AInitrostack.ai · read 2026-10-29
- 7SDKs - Model Context Protocolmodelcontextprotocol.io · read 2026-10-29
- 8Quickstart - FastMCPgofastmcp.com · read 2026-10-29
- 9xmcp — The TypeScript MCP frameworkxmcp.dev · read 2026-10-29
- 17mcp-apps: declares "mcp-apps" (the record we read and signed)unfragile.ai · read 2026-10-24
- 18FastMCP: declares "fastmcp-server" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
· MCPJam website read, tools not yet checked
Test, debug, and evaluate MCP servers with MCPJam. OAuth flow testing, LLM-powered evals, and CI/CD integration — open-source and runs locally.
· mpak website read, tools not yet checked
Open-source package registry for MCP servers. Every bundle scanned with 25 security controls. Trust scores on every package.
· McpMux website read, tools not yet checked
The largest MCP server registry and marketplace. Browse and install 100+ Model Context Protocol (MCP) servers for Cursor, Claude, VS Code, ChatGPT, Windsurf, JetBrains, and Gemini CLI. Find MCP servers for GitHub, Slack, PostgreSQL, Docker, AWS, Cloudflare, Atlassian, Notion, Stripe, Sentry, and mor
· Varity MCP Server Reference website read, tools not yet checked
Install the published Varity MCP package, configure a supported editor, and use its machine-readable tool catalog without relying on unreleased source.
· MCP Harbor website read, tools not yet checked
Browse 26,560 MCP servers and clients for Claude, Cursor and VS Code, ranked by GitHub stars and weekly growth, with install steps. Updated daily.
· NitroStack website read, tools not yet checked
NitroStack is the complete MCP (Model Context Protocol) platform. Build and ship MCP servers, MCP apps, and agentic AI agents using our open-source SDK, MCP CLI, NitroStudio desktop app, and NitroCloud managed hosting.
mcp-apps · mcp-apps verified and signed
Skills for creating MCP Apps with the MCP Apps SDK
fastmcp-server · FastMCP verified and signed
Build, extend, or review MCP servers with Python FastMCP, using documentation matched to the project's version.
· xmcp website read, tools not yet checked
Build MCP servers in TypeScript with file-based tools, Zod validation, authentication integrations, and HTTP or STDIO transports. Start with xmcp.
openaq-mcp-server · @cyanheads/openaq-mcp-server found in code, not yet checked
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.