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MCP servers tagged ext-apps
7 live MCP servers tagged "ext-apps", ranked by trust score. Tags come from package metadata and repository topics, so this list covers servers across every category that work with ext-apps.
Skybridge
Skybridge is a framework for building ChatGPT & MCP Apps
Synapse
Agent-aware app SDK for the MCP ext-apps protocol
Widget Runtime
Studio conveniences on top of the official MCP Apps SDK App: connectWidget (tool lifecycle recorded before the handshake, host theme applied) and React hooks.
Nimblebrain
Self-hosted platform for MCP Apps and agent automations — tools, interactive UIs, scheduled runs, multi-agent delegation.
Aareguru MCP
MCP server for the temperature & weather for beautiful Aare
Hub
Interactive micro-tools for humans and AI agents — a reference implementation of MCP Apps (SEP-1865) UI cards over Streamable HTTP MCP.
Apps Doctor
Why your MCP App renders blank: checks a remote MCP server's ui:// views (tool link, MIME type, CSP, the ui/initialize bridge, ui.domain) for Claude, ChatGPT and any MCP Apps host…