Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add ext-apps -- npx @modelcontextprotocol/ext-apps~/.codex/config.toml
[mcp_servers.ext-apps]
command = "npx"
args = ["@modelcontextprotocol/ext-apps"]
# codex mcp add ext-apps -- npx @modelcontextprotocol/ext-apps~/.cursor/mcp.json
{
"mcpServers": {
"ext-apps": {
"command": "npx",
"args": [
"@modelcontextprotocol/ext-apps"
]
}
}
}.vscode/mcp.json
{
"servers": {
"ext-apps": {
"type": "stdio",
"command": "npx",
"args": [
"@modelcontextprotocol/ext-apps"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"ext-apps": {
"command": "npx",
"args": [
"@modelcontextprotocol/ext-apps"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"ext-apps": {
"command": "npx",
"args": [
"@modelcontextprotocol/ext-apps"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"ext-apps": {
"command": "npx",
"args": [
"@modelcontextprotocol/ext-apps"
]
}
}
}