MCP.Market

Summer Engine MCP server

online · 100% uptime
by SummerEngine·io.github.SummerEngine/summer·v4.5.0·77 stars
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The game engine built for AI. Any agent makes a multiplayer game and publishes it.

B79/100grade B
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Safety scan
B79/100

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Adoption
Established

77 stars5.6k downloads/wk

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How Summer Engine compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
79/100
higher than 58% of 4,464 AI and agents servers
Uptime
100%
of our recent checks; the typical remote AI and agents server answers 100%
Response time
242 ms
faster than 54% of 2,333 AI and agents servers
GitHub stars
77
more than 93% of 2,697 AI and agents servers
Downloads a week
5,635
more than 95% of 1,515 AI and agents servers with a package

Release history: 3 versions in the registry since 2026-10-16, latest 2026-10-20, typically one every 5 days.

Install Summer Engine in Claude Code, Cursor or VS Code

claude mcp add --transport http summer https://mcp.summerengine.com/mcp
Add to Cursor

What the publisher says

From the Summer Engine repository's README, as published. We do not edit it. Read it on GitHub

Summer Engine: MCP server, CLI and skills

The game engine built for AI.

Any agent builds, tests and publishes a full multiplayer game. MCP server · game-dev skills · summer CLI, in one npm package: summer-engine.

Website · Docs · CLI setup · MCP setup

Install

  • Chat apps (Claude, ChatGPT, Cursor...): add https://mcp.summerengine.com/mcp. Nothing to install.
  • Homebrew: brew install summerengine/tap/summer
  • npm (Node 20+): npm install -g summer-engine

CLI only (summer-engine 4.2.0 or newer), no MCP server: summer setup --cli. summer ops search "publish my game" finds any operation, signed in or not.

Connect

Cloud work: https://mcp.summerengine.com/mcp. Nothing to install. Add the URL to your agent and sign in to your Summer account once. Your agent then makes assets (images, 3D models, motion, sound effects, music, voices, video), searches and downloads your Summer asset library, plans games, and runs your projects, the store, publishing, prices, analytics, A/B tests, your team and Studio. It has no engine tools: for those, use the local server below.

Engine work: npx -y summer-engine@latest setup --yes (needs Node 20+). It writes the local server (summer mcp) into your agent's config with the skills. The local server drives the Summer Engine app on your machine: build scenes, write scripts, play the game, take screenshots, read errors. After summer login it also runs every cloud operation, so your agent needs one server. Or paste the prompt in Get started and your agent does every step.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Summer Engine: common questions

Is Summer Engine MCP server safe?
Mostly: it is graded B (79/100). Read the Summer Engine safety report
How do I install Summer Engine?
It runs remotely at mcp.summerengine.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Summer Engine need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Summer Engine maintained?
The last commit was 17 days ago (2026-10-16). The latest release is v4.5.0.
Is Summer Engine up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Summer Engine?
Servers from other publishers that do the same job: DCC-MCP Core MCP server, Godot MCP server and Robin: AI-Powered Dark Web OSINT MCP server.
How does Summer Engine compare with other AI and agents MCP servers?
safety score 79/100 (higher than 58% of 4,464 AI and agents servers); uptime 100% (of our recent checks; the typical remote AI and agents server answers 100%); response time 242 ms (faster than 54% of 2,333 AI and agents servers). Full comparison.

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