AI Plugin Index
Summer Engine
CommunityMCP server by summerengine · updated · ★ 84 · 5.7k downloads a week
The game engine built for AI. Any agent makes a multiplayer game and publishes it. Summer Engine is a community project by summerengine, not verified by a company domain.
Last commit in the past day
MIT: permissive, fine for commercial use
Clear description, published package or server URL, 84 stars, original repository
Not checked yet. What we check
Install Summer Engine
Built from the published package, never by AIclaude mcp add summer-engine -- npx -y summer-engineRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"summer-engine": {
"command": "npx",
"args": [
"-y",
"summer-engine"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"summer-engine": {
"command": "npx",
"args": [
"-y",
"summer-engine"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"summer-engine": {
"command": "npx",
"args": [
"-y",
"summer-engine"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add summer-engine -- npx -y summer-engine{
"mcpServers": {
"summer-engine": {
"command": "npx",
"args": [
"-y",
"summer-engine"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add summer-engine npx -y summer-engineGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the summer-engine block.
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Summer Engine: common questions
How do I install Summer Engine?
In Claude Code run claude mcp add summer-engine -- npx -y summer-engine. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Summer Engine the official server?
Summer Engine is a community project by summerengine, not verified by a company domain.
Is Summer Engine free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Summer Engine safe to use?
It scores 87 of 100. Grades: maintenance A, licence A, quality B. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to Summer Engine?
Similar MCP servers: Harness, Nhost, firebase-mcp, Quasar MCP.
Does Summer Engine work with ChatGPT?
Yes. Add its server URL in ChatGPT as a custom connector. See MCP in ChatGPT.