MCP for game engines: Unity, Godot & Blender setup
In short
An MCP server lets a coding agent such as Claude Code or Cursor drive a running editor. For Unity there is Unity's own MCP mode in the free Unity CLI (the old in-editor MCP server is deprecated) and the MIT-licensed MCP for Unity from Coplay. For Godot there are two MIT community servers, Coding-Solo/godot-mcp and hi-godot/godot-ai. For Blender there is an official GPL-3.0 server from Blender Lab and the MIT community MCP for Blender. All of them let the agent change your project, and the Blender ones run AI-written Python, so the security section matters as much as the install steps.
An MCP server lets your coding agent drive the editor itself: open scenes, edit scripts, run the game, read the errors. Unity, Godot and Blender each have an official or popular community server, and they differ on engine version, setup and how much they guard your machine. This guide quotes each server's docs and license, plus Claude Code's and Cursor's MCP docs, for the install steps and the risks.
Not tested hands-on. We have not tested any of these MCP servers hands-on (untested): we did not install them in a Unity, Godot, or Blender project, and we don't rank how well the agent works. Everything here is built from verbatim quotes we copied on 2026-10-30 from Unity's CLI and plugin docs, the Coplay MCP for Unity docs and repo, the Coding-Solo/godot-mcp and hi-godot/godot-ai READMEs, Blender Lab's MCP Server page and license, the ahujasid MCP for Blender README and license, Anthropic's Claude Code MCP docs, Cursor's MCP docs, and the MCP specification's security page. Our daily job re-checks that each quote is still on its page. We don't quote GitHub star counts, because they change daily.
4 tools · 81 Server or client doc quotes plus ledger rows · updated 2026-10-30 · last checked 2026-10-30
Unity: the two MCP routes in our ledger
Unity's own CLI MCP mode and Coplay's MCP for Unity. The name links to the tool page.
Unity CLI with built-in MCP mode: run unity mcp configure <client> for Claude Code, Cursor, VS Code, or Windsurf. Needs Unity 6.0 LTS or later; the local server accepts localhost connections only. Replaces the deprecated in-editor MCP server.
- Cheapest paid
- Not needed for MCP. Unity's in-editor assistant is the paid part (included with Pro, Enterprise, Industry; Personal trial converts to $10/month).
- Free tier
- CLI, MCP server, and official plugin are free with no concurrency limits; no Unity AI credits needed.
Quotes behind this (9)
Pro, Enterprise, and Industry customers receive access to Unity’s agentic assistant as a part of their paid subscription. Personal Edition users may sign up for a free trial to Unity's agentic assistant, which converts to a $10/month subscription. See more on the pricing page . CLI, MCP server and Unity's official plugin are all free to use with no concurrency limits.
Unity AI · Verified · fetched 2026-10-15 · unity.com/features/aiUnity has deprecated the MCP server included in the in-editor AI assistant package. The Unity CLI replaces this MCP server.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliThe MCP mode in the Unity CLI is not part of the deprecation. It remains fully supported.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliRun unity mcp configure <client> . Replace <client> with the name of your client, for example, claude , cursor , vscode , or windsurf .
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliTo drive a running Editor through the Unity Pipeline package, use Unity 6.0 LTS or later.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliIt runs on your machine, and the local pipeline server accepts connections on localhost only.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliThe CLI is free and separate from Unity AI. Installing the CLI doesn't require a Unity AI subscription.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliCLI, MCP server and Unity's official plugin are all free to use with no concurrency limits.
Verified · fetched 2026-10-30 · unity.com/features/aiNo. MCP server is free, with no concurrency limits and you do not need to purchase Unity's AI credits to use it.
Verified · fetched 2026-10-30 · unity.com/features/ai
MCP for Unity (CoplayDev/unity-mcp): a Unity package plus a Python server that exposes 50 MCP tool entrypoints to any client. Unity 2021.3 LTS or newer, Python 3.10+ with uv. MIT licensed, maintained by Aura, not affiliated with Unity.
- Cheapest paid
- Not needed for MCP. Coplay's own assistant is Professional at $20/month.
- Free tier
- MCP for Unity is free and MIT; Coplay's pricing says Coplay MCP can be used free with your own AI subscription.
Quotes behind this (7)
Free $0 / month Perfect for trying out Coplay and small projects. What's included Access to all Coplay Features Access to all Models Use Coplay MCP free with your AI subscription.
Coplay · Verified · fetched 2026-10-27 · coplay.dev/pricingProfessional Popular $20 / month For serious game developers who need more power. What's included $20 worth of credits/month $20 extra credits/month for all Claude models $4/day credit when you reach $0 (only for Claude models) Access to Latest AI models Unlimited Top-Up Credits Priority Customer Support Credits charged at LLM provider cost
Coplay · Verified · fetched 2026-10-27 · coplay.dev/pricingCoplay is now part of Aura , the first AI assistant for both Unity and Unreal Engine.
Coplay · Verified · fetched 2026-10-23 · coplay.dev/pricing50 focused MCP tool entrypoints, any client, free & MIT.
Verified · fetched 2026-10-30 · github.com/CoplayDev/unity-mcpUnity 2021.3 LTS or newer
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installPython 3.10+ with uv — the setup wizard guides you through both if missing
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installMIT licensed. Sponsored and maintained by Aura . Not affiliated with Unity Technologies.
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/install
The agent side: MCP clients in our ledger
The MCP server is free; the client you point at it is where the plan, the price and the output terms live.
Claude Code adds servers with claude mcp add. Servers default to local scope; project-scoped servers in .mcp.json need approval before use in interactive sessions.
- Cheapest paid
- Pro is $17/month billed annually or $20 monthly.
- Free tier
- Free plan exists. On consumer plans Anthropic assigns you its rights in Outputs.
Quotes behind this (6)
For everyday work $17 Per month with annual subscription discount ( $200 billed up front). $20 if billed monthly.
Anthropic Claude · Verified · fetched 2026-10-21 · claude.com/pricingSubject to your compliance with our Terms, we assign to you all of our right, title, and interest—if any—in Outputs.
Anthropic Claude · Verified · fetched 2026-10-21 · anthropic.com/legal/consumer-termsincluding training our models, unless you opt out of training through your account settings.
Anthropic Claude · Verified · fetched 2026-10-21 · anthropic.com/legal/consumer-termsEach command writes to local scope unless you add --scope project or --scope user .
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcpLocal scope is the default. A local-scoped server loads only in the project where you added it and stays private to you.
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcpFor security reasons, Claude Code prompts for approval in interactive sessions before using project-scoped servers from .mcp.json files.
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcp
Cursor reads MCP servers from .cursor/mcp.json in a project or ~/.cursor/mcp.json for every project.
- Cheapest paid
- Plus is $8/month; third-party model usage is billed separately.
- Free tier
- Free plan at $0/month. You keep rights in Inputs and Anysphere assigns you its rights in Suggestions.
Quotes behind this (5)
Free $0 /month Get started Plus $8 /month Get Plus Premium $30 /month Get Premium Super $100 /month Get Super Ultra $200 /month Get Ultra Teams $30 +/user/month Get Teams Enterprise Custom
Cursor · Verified · fetched 2026-10-22 · cursor.com/pricingThird Party model usage in Cursor is not included in the monthly prices shown and must be purchased separately.
Cursor · Verified · fetched 2026-10-22 · cursor.com/pricingYou retain all of your right, title, and interest that you have in Inputs, and Anysphere hereby assigns to you all of our right, title, and interest if any in and to any Suggestions.
Cursor · Verified · fetched 2026-10-22 · cursor.com/terms-of-serviceCreate .cursor/mcp.json in your project for project-specific tools.
Verified · fetched 2026-10-30 · cursor.com/docs/context/mcpCreate ~/.cursor/mcp.json in your home directory for tools available everywhere.
Verified · fetched 2026-10-30 · cursor.com/docs/context/mcp
Only tools in our ledger get a table row; the Godot and Blender servers are covered in the sections below with their own quotes. Prices are copied from vendor pricing pages on the fetch date shown under each quote. The MCP servers themselves are free; what costs money is the agent you connect to them.
Which MCP servers exist for each engine
Six servers across three engines, with each one's requirements as its own docs state them.
Unity (official): MCP mode in the Unity CLI
Unity deprecated the MCP server that shipped inside the in-editor AI assistant package; the Unity CLI replaces it. Unity says the CLI's MCP mode is not part of the deprecation and remains fully supported. Unity also says its plain CLI commands are faster and use fewer tokens than MCP if your agent can run shell commands. Driving a running Editor needs Unity 6.0 LTS or later.
Quotes behind this (5)
Pro, Enterprise, and Industry customers receive access to Unity’s agentic assistant as a part of their paid subscription. Personal Edition users may sign up for a free trial to Unity's agentic assistant, which converts to a $10/month subscription. See more on the pricing page . CLI, MCP server and Unity's official plugin are all free to use with no concurrency limits.
Unity AI · Verified · fetched 2026-10-15 · unity.com/features/aiUnity has deprecated the MCP server included in the in-editor AI assistant package. The Unity CLI replaces this MCP server.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliThe MCP mode in the Unity CLI is not part of the deprecation. It remains fully supported.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliThey're faster and use fewer tokens than MCP. Use these commands if your agent can run shell commands.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliTo drive a running Editor through the Unity Pipeline package, use Unity 6.0 LTS or later.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cli
Unity (community): MCP for Unity by Coplay
Coplay's MCP for Unity installs as a Unity package from a git URL or OpenUPM, then opens a setup wizard. It needs Unity 2021.3 LTS or newer and Python 3.10+ with uv. Unity's own migration page says third-party MCP packages from GitHub are unaffected by the deprecation.
Quotes behind this (6)
In Unity, open Window → Package Manager , click the + button, choose Add package from git URL... , and paste: https://github.com/CoplayDev/unity-mcp.git?path=/MCPForUnity#main
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installopenupm add com.coplaydev.unity-mcp
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installAfter import, MCP for Unity opens a setup wizard automatically.
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installUnity 2021.3 LTS or newer
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installPython 3.10+ with uv — the setup wizard guides you through both if missing
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installThird-party MCP packages from GitHub that you installed to get agent access into Unity are unaffected.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cli
Godot: Coding-Solo/godot-mcp
A Node.js server (Node.js 18 or newer and npm) that lets an agent launch the Godot editor, run projects, capture debug output, and control project execution. If it can't find Godot, set GODOT_PATH to the Godot executable.
Quotes behind this (3)
Godot MCP enables AI agents to launch the Godot editor, run projects, capture debug output, and control project execution.
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcpNode.js (>=18.0.0) and npm
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcpGODOT_PATH Path to the Godot executable (overrides automatic detection)
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcp
Godot: hi-godot/godot-ai
An editor add-on plus a Python server that connects Claude Code, Codex, Cursor and other clients to a live Godot editor. It needs Godot 4.7+, uv, and an MCP client. GDScript is supported, but C# is text-only.
Quotes behind this (3)
Godot AI connects Claude Code, Codex, Cursor, and other MCP clients to a live Godot editor.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiYou need Godot 4.7+ , uv (it runs the Python server), and an MCP client.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiC# is text-only
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-ai
Blender (official): Blender Lab MCP Server
Blender Lab describes a lightweight MCP server for Blender. Blender has no built-in way to connect to LLMs, so you install an add-on, an LLM client, and the MCP server. It needs Blender 5.1 or newer, and newer clients can install it from an .mcpb bundle.
Quotes behind this (4)
A lightweight MCP (Model Context Protocol) server for Blender.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/Blender does not have any built-in functionality for connecting to LLMs.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/Requirements: Blender 5.1 or newer Add-on LLM Client MCP Server
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/MCP Bundle : For newer clients that support .mcpb files, download the latest package from the release page.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/
Blender (community): MCP for Blender by ahujasid
A third-party integration, not made by Blender. Its PyPI package was renamed from blender-mcp to mcp-for-blender. It needs Blender 3.0 or newer, Python 3.10 or newer, and uv. Its Premium option generates AI 3D models (Meshy, Hunyuan3D, Tripo, Hyper3D Rodin) in Blender without your own API keys; the ownership terms of those models are set by each generator, so check who owns AI game assets.
Quotes behind this (4)
Disclaimer: This is a third-party integration and not made by Blender
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpthe PyPI package blender-mcp is now mcp-for-blender
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpPrerequisites Blender 3.0 or newer Python 3.10 or newer uv package manager
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpGenerate AI 3D models (Meshy, Hunyuan3D, Tripo, Hyper3D Rodin) straight into Blender without bringing your own API keys.
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcp
Step by step: connect Claude Code to Unity, Godot, or Blender
Each step is quoted from the server's own docs or from Claude Code's MCP docs. Pick the steps for your engine; steps 1 and 10 apply to all.
Step 1. Decide the scope before you add a server
In Claude Code, claude mcp add writes to local scope unless you pass --scope project or --scope user. Local scope is the default and loads only in the project where you added it. Project scope writes .mcp.json, and Claude Code asks for approval before using those servers in interactive sessions.
Quotes behind this (3)
Each command writes to local scope unless you add --scope project or --scope user .
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcpLocal scope is the default. A local-scoped server loads only in the project where you added it and stays private to you.
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcpFor security reasons, Claude Code prompts for approval in interactive sessions before using project-scoped servers from .mcp.json files.
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcp
Step 2. Unity CLI: install the CLI and the pipeline package
On macOS or Linux, Unity's install script is curl -fsSL https://unity.com/install.sh | bash; check it with unity --version. Then run unity pipeline install.
Quotes behind this (3)
curl -fsSL https://unity.com/install.sh | bash
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/use-unity-cliverify the CLI is available by running unity --version
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/use-unity-cliInstall the Unity CLI. Run unity pipeline install .
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cli
Step 3. Unity CLI: configure Claude Code
Run unity mcp configure claude (the client names Unity lists include claude, cursor, vscode, and windsurf). unity mcp configure --list shows every supported client and whether it is configured.
Quotes behind this (2)
Run unity mcp configure <client> . Replace <client> with the name of your client, for example, claude , cursor , vscode , or windsurf .
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliRun unity mcp configure --list to see all supported clients and their current configuration status.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cli
Step 4. Unity CLI: optional Claude Code plugin
Unity also ships a Claude Code plugin: /plugin marketplace add Unity-Technologies/unity-agent-plugin, then /plugin install unity@unity-agent-plugin. It only ships skills and doesn't use an MCP server. Run unity status to confirm the CLI can reach the Editor.
Quotes behind this (4)
/plugin marketplace add Unity-Technologies/unity-agent-plugin
Verified · fetched 2026-10-30 · docs.unity.com/en-us/ai/unity-plugin/claude-code/plugin install unity@unity-agent-plugin
Verified · fetched 2026-10-30 · docs.unity.com/en-us/ai/unity-plugin/claude-codeThe plugin only ships skills and doesn't use a Model Context Protocol (MCP) server.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/ai/unity-plugin/claude-codeRun unity status to confirm the CLI can reach the Editor.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/ai/unity-plugin/claude-code
Step 5. MCP for Unity: install the package and run the wizard
In Unity, open Window > Package Manager, Add package from git URL, and paste https://github.com/CoplayDev/unity-mcp.git?path=/MCPForUnity#main (or openupm add com.coplaydev.unity-mcp). The setup wizard opens after import; pick your clients and click Configure Selected. Claude Code auto-connects after configuration. The server's default local URL is http://localhost:8080/mcp.
Quotes behind this (7)
In Unity, open Window → Package Manager , click the + button, choose Add package from git URL... , and paste: https://github.com/CoplayDev/unity-mcp.git?path=/MCPForUnity#main
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installopenupm add com.coplaydev.unity-mcp
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installAfter import, MCP for Unity opens a setup wizard automatically.
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installPick the clients you want to configure and click Configure Selected .
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/installConfigure — Window → MCP for Unity → Configure All Detected Clients .
Verified · fetched 2026-10-30 · github.com/CoplayDev/unity-mcpClaude Code, VS Code, Windsurf, Cline, and the CLI clients auto-connect after configuration.
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/install"url" : "http://localhost:8080/mcp"
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/install
Step 6. Godot (godot-mcp): one command
Run claude mcp add godot -- npx @coding-solo/godot-mcp, then restart Claude Code. In Claude Code, the -- separates Claude's own options from the command that runs the server.
Quotes behind this (3)
claude mcp add godot -- npx @coding-solo/godot-mcp
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcpThat's it. Restart Claude Code and your Godot MCP tools are available.
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcpthe -- (double dash) separates Claude’s own options, such as --transport , --env , and --scope , from the command and arguments that run the server.
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcp
Step 7. Godot (godot-ai): enable the add-on and press Configure
Install the add-on, enable it under Project > Project Settings > Plugins > Godot AI, then press Configure next to your client in the Godot AI dock. CLI-configured clients default to global user scope, and Claude Code needs a one-time approval from claude run inside the project.
Quotes behind this (4)
Enable it: Project → Project Settings → Plugins → Godot AI .
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiConnect your client: in the Godot AI dock, press Configure next to your client, or Configure all .
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiCLI-configured clients default to global user scope.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiClaude Code also requires one-time approval from claude run inside that project.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-ai
Step 8. Blender (official): install the add-on and the server
Drag the add-on into Blender twice: once to add the Blender Lab repository, once to install the add-on. Then install the MCP server in your client, from the .mcpb bundle if your client supports it.
Quotes behind this (2)
If you drag & drop into Blender you will need to do it twice .
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/MCP Bundle : For newer clients that support .mcpb files, download the latest package from the release page.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/
Step 9. Blender (MCP for Blender): add the server and the add-on
Run claude mcp add blender uvx mcp-for-blender, then uvx mcp-for-blender install-addon, and enable Interface: MCP for Blender under Edit > Preferences > Add-ons. Run only one instance of the server, not one per client.
Quotes behind this (4)
claude mcp add blender uvx mcp-for-blender
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpuvx mcp-for-blender install-addon
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpEdit → Preferences → Add-ons → enable Interface: MCP for Blender .
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpNote: Only run one instance of the MCP server (either Cursor or Claude Desktop), not both.
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcp
Step 10. Check the connection
claude mcp list shows a health status for each server, and /mcp inside Claude Code shows server status.
Quotes behind this (2)
claude mcp list shows a health status next to each server it lists
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcp# (within Claude Code) Check server status /mcp
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcp
Security: what these servers can do to your machine
Every server here lets an AI agent change your project. Some run arbitrary code. These are the warnings and guards the docs themselves state.
Blender servers run AI-written Python
Blender Lab warns that its server will execute LLM-generated code in Blender without guards against your data being removed or sent to a remote location, and recommends a virtual machine or a system without sensitive information. MCP for Blender says its execute_blender_code tool runs arbitrary Python and tells you to save your work first.
Quotes behind this (4)
The MCP server will execute LLM generated code in Blender without any guards in place to protect your data from removal or being sent to a remote location.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/To keep your data safe it is recommended to use a virtual machine, or a system without access to sensitive information.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/Warning: The execute_blender_code tool allows running arbitrary Python code in Blender, which can be powerful but potentially dangerous.
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpALWAYS save your work before using it.
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcp
MCP for Blender: no auth on the socket, optional safe mode
Its add-on socket server has no authentication or encryption, so anyone who can reach the port can run Python in Blender. Setting BLENDER_MCP_SAFE_MODE=1 checks each script and blocks risky code.
Quotes behind this (2)
Note: the addon's socket server has no authentication or encryption, so anyone who can reach that port can run Python inside Blender.
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpSet BLENDER_MCP_SAFE_MODE=1 to check every script before it runs and block risky code
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcp
Unity: localhost-only by default
Unity's CLI pipeline server accepts connections on localhost only. Coplay's MCP for Unity binds to loopback by default, and its remote-hosted mode requires an API key.
Quotes behind this (3)
It runs on your machine, and the local pipeline server accepts connections on localhost only.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliHTTP Local binds to loopback only by default ( 127.0.0.1 , localhost , ::1 ).
Verified · fetched 2026-10-30 · github.com/CoplayDev/unity-mcp/blob/main/SECURITY.mdRemote-hosted mode requires API key authentication.
Verified · fetched 2026-10-30 · github.com/CoplayDev/unity-mcp/blob/main/SECURITY.md
Godot AI confines writes to the project
godot-ai says writes stay inside your project and that project.godot, override.cfg and .godot/ are off-limits. It also says you use it at your own risk.
Quotes behind this (2)
Project confinement. Writes stay inside your project, and project.godot , override.cfg , and .godot/ are off-limits.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiGodot AI is MIT-licensed open source, provided as is; you use it at your own risk.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-ai
General MCP risks
The MCP specification warns that local servers may have direct access to your system and be reachable by other processes, and recommends launching them with restricted file-system and network access. Claude Code's docs say to verify you trust each server, because servers that fetch external content can expose you to prompt injection.
Quotes behind this (3)
These servers may have direct access to the user’s system and may be accessible to other processes running on the user’s machine, making them attractive targets for attacks.
Verified · fetched 2026-10-30 · modelcontextprotocol.io/specification/2025-06-18/basic/security_best_pLaunch MCP servers with restricted access to the file system, network, and other system resources
Verified · fetched 2026-10-30 · modelcontextprotocol.io/specification/2025-06-18/basic/security_best_pVerify you trust each server before connecting it. Servers that fetch external content can expose you to prompt injection risk .
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcp
Telemetry you can switch off
godot-ai lets you opt out with GODOT_AI_DISABLE_TELEMETRY=true or DISABLE_TELEMETRY=true, or in the editor. MCP for Blender turns off all telemetry, including its minimal anonymous usage record, with an environment variable.
Quotes behind this (2)
Opt out with GODOT_AI_DISABLE_TELEMETRY=true or DISABLE_TELEMETRY=true , or in the editor.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiTo turn off telemetry entirely , including the minimal anonymous usage record, set an environment variable:
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcp
License of each MCP server
The license covers the server code, not what you make with it. Your game's code and assets fall under the terms of the agent and any generator you use.
Unity CLI MCP mode: free, Unity's own product
Unity says the CLI is free, separate from Unity AI, and needs no Unity AI subscription. We did not find an open-source license for it on the pages we fetched.
Quotes behind this (3)
Pro, Enterprise, and Industry customers receive access to Unity’s agentic assistant as a part of their paid subscription. Personal Edition users may sign up for a free trial to Unity's agentic assistant, which converts to a $10/month subscription. See more on the pricing page . CLI, MCP server and Unity's official plugin are all free to use with no concurrency limits.
Unity AI · Verified · fetched 2026-10-15 · unity.com/features/aiThe CLI is free and separate from Unity AI. Installing the CLI doesn't require a Unity AI subscription.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliCLI, MCP server and Unity's official plugin are all free to use with no concurrency limits.
Verified · fetched 2026-10-30 · unity.com/features/ai
MCP for Unity (Coplay): MIT
MIT licensed, sponsored and maintained by Aura, not affiliated with Unity Technologies.
Quotes behind this (2)
MIT licensed. Sponsored and maintained by Aura . Not affiliated with Unity Technologies.
Verified · fetched 2026-10-30 · coplaydev.github.io/unity-mcp/getting-started/install50 focused MCP tool entrypoints, any client, free & MIT.
Verified · fetched 2026-10-30 · github.com/CoplayDev/unity-mcp
Coding-Solo/godot-mcp: MIT
The README says the project is licensed under the MIT License.
Quotes behind this (1)
This project is licensed under the MIT License
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcp
hi-godot/godot-ai: MIT
MIT, provided as is; its LICENSE file is the MIT License from the Godot AI contributors.
Quotes behind this (2)
Godot AI is MIT-licensed open source, provided as is; you use it at your own risk.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiMIT License Copyright (c) 2025 Godot AI contributors
Verified · fetched 2026-10-30 · raw.githubusercontent.com/hi-godot/godot-ai/main/LICENSE
Blender Lab MCP Server: GPL-3.0
The LICENSE file in Blender Lab's blender_mcp repository is the GNU General Public License, version 3.
Quotes behind this (1)
GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007
Verified · fetched 2026-10-30 · projects.blender.org/lab/blender_mcp/raw/branch/main/LICENSE
MCP for Blender (ahujasid): MIT
Its LICENSE file is the MIT License, copyright Siddharth Ahuja.
Quotes behind this (1)
MIT License Copyright (c) 2025 Siddharth Ahuja
Verified · fetched 2026-10-30 · raw.githubusercontent.com/ahujasid/blender-mcp/main/LICENSE
Editorial opinion
Our pick: which MCP server for which engine
- Pick Unity CLI MCP mode You are on Unity 6 or later and want Unity's supported route; it's free, local-only, and configures Claude Code, Cursor, VS Code, or Windsurf with one command.
- Pick MCP for Unity (Coplay) You are on a Unity version older than 6 (it supports 2021.3 LTS and newer), or want an MIT server with a setup wizard and 50 MCP tool entrypoints.
- Pick godot-ai You are on Godot 4.7+ and want the agent to edit scenes and scripts in the live editor, with project-confined writes.
- Pick godot-mcp (Coding-Solo) You want a one-line Node.js setup that runs projects and returns debug output, or your Godot version is older than the 4.7 that godot-ai needs.
- Pick Blender Lab MCP Server You are on Blender 5.1+ and want the official server; run it in a VM or on a machine without sensitive data.
- Pick MCP for Blender (ahujasid) You want a one-command setup for Claude Code or Cursor, or Blender older than 5.1; turn on safe mode.
These picks are our editorial opinion, based on the quoted docs, READMEs and licenses above. We have not tested any of these servers hands-on (untested), and we don't rank how well agents perform with them.
FAQ
- Is Unity's MCP server deprecated?
- The MCP server inside the in-editor AI assistant package is deprecated and replaced by the Unity CLI. The CLI's MCP mode is not part of the deprecation and remains fully supported, and third-party MCP packages from GitHub are unaffected.
Sources (3)
Unity has deprecated the MCP server included in the in-editor AI assistant package. The Unity CLI replaces this MCP server.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliThe MCP mode in the Unity CLI is not part of the deprecation. It remains fully supported.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliThird-party MCP packages from GitHub that you installed to get agent access into Unity are unaffected.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cli
- Do I need to pay for a Unity MCP server?
- No. Unity says its CLI, MCP server and official plugin are free with no concurrency limits, and the MCP server needs no Unity AI credits. Coplay's MCP for Unity is MIT and free. You still pay for the agent you connect, such as Claude or Cursor.
Sources (5)
Pro, Enterprise, and Industry customers receive access to Unity’s agentic assistant as a part of their paid subscription. Personal Edition users may sign up for a free trial to Unity's agentic assistant, which converts to a $10/month subscription. See more on the pricing page . CLI, MCP server and Unity's official plugin are all free to use with no concurrency limits.
Unity AI · Verified · fetched 2026-10-15 · unity.com/features/aiFree $0 / month Perfect for trying out Coplay and small projects. What's included Access to all Coplay Features Access to all Models Use Coplay MCP free with your AI subscription.
Coplay · Verified · fetched 2026-10-27 · coplay.dev/pricingCLI, MCP server and Unity's official plugin are all free to use with no concurrency limits.
Verified · fetched 2026-10-30 · unity.com/features/aiNo. MCP server is free, with no concurrency limits and you do not need to purchase Unity's AI credits to use it.
Verified · fetched 2026-10-30 · unity.com/features/ai50 focused MCP tool entrypoints, any client, free & MIT.
Verified · fetched 2026-10-30 · github.com/CoplayDev/unity-mcp
- How do I add a Godot MCP server to Claude Code?
- For Coding-Solo/godot-mcp, run claude mcp add godot -- npx @coding-solo/godot-mcp and restart Claude Code; it needs Node.js 18 or newer. For godot-ai, enable the add-on in Godot 4.7+ and press Configure in its dock.
Sources (5)
claude mcp add godot -- npx @coding-solo/godot-mcp
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcpThat's it. Restart Claude Code and your Godot MCP tools are available.
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcpNode.js (>=18.0.0) and npm
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcpYou need Godot 4.7+ , uv (it runs the Python server), and an MCP client.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-aiConnect your client: in the Godot AI dock, press Configure next to your client, or Configure all .
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-ai
- Is there an official Blender MCP server?
- Yes. Blender Lab publishes an MCP Server that needs Blender 5.1 or newer, under GPL-3.0. The popular MCP for Blender by ahujasid is a separate third-party MIT project, not made by Blender.
Sources (5)
A lightweight MCP (Model Context Protocol) server for Blender.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/Requirements: Blender 5.1 or newer Add-on LLM Client MCP Server
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007
Verified · fetched 2026-10-30 · projects.blender.org/lab/blender_mcp/raw/branch/main/LICENSEDisclaimer: This is a third-party integration and not made by Blender
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpMIT License Copyright (c) 2025 Siddharth Ahuja
Verified · fetched 2026-10-30 · raw.githubusercontent.com/ahujasid/blender-mcp/main/LICENSE
- Is it safe to let an AI agent control Blender?
- Both Blender servers let the AI run Python in Blender. Blender Lab says its server has no guards against data removal or exfiltration and recommends a virtual machine. MCP for Blender offers a safe mode (BLENDER_MCP_SAFE_MODE=1) and warns its socket has no authentication.
Sources (4)
The MCP server will execute LLM generated code in Blender without any guards in place to protect your data from removal or being sent to a remote location.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/To keep your data safe it is recommended to use a virtual machine, or a system without access to sensitive information.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/Set BLENDER_MCP_SAFE_MODE=1 to check every script before it runs and block risky code
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcpNote: the addon's socket server has no authentication or encryption, so anyone who can reach that port can run Python inside Blender.
Verified · fetched 2026-10-30 · github.com/ahujasid/blender-mcp
- Where does Claude Code store MCP servers?
- Local scope is the default and loads only in the project where you added it. Pass --scope project to write a shared .mcp.json, which Claude Code asks you to approve before use, or --scope user for all your projects.
Sources (3)
Local scope is the default. A local-scoped server loads only in the project where you added it and stays private to you.
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcpEach command writes to local scope unless you add --scope project or --scope user .
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcpFor security reasons, Claude Code prompts for approval in interactive sessions before using project-scoped servers from .mcp.json files.
Verified · fetched 2026-10-30 · code.claude.com/docs/en/mcp
- Can I use these with Cursor instead of Claude Code?
- Yes. Cursor reads servers from .cursor/mcp.json in a project or ~/.cursor/mcp.json globally. Unity's CLI can configure cursor directly, and Coding-Solo/godot-mcp and godot-ai both list Cursor.
Sources (4)
Create .cursor/mcp.json in your project for project-specific tools.
Verified · fetched 2026-10-30 · cursor.com/docs/context/mcpCreate ~/.cursor/mcp.json in your home directory for tools available everywhere.
Verified · fetched 2026-10-30 · cursor.com/docs/context/mcpRun unity mcp configure <client> . Replace <client> with the name of your client, for example, claude , cursor , vscode , or windsurf .
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliGodot AI connects Claude Code, Codex, Cursor, and other MCP clients to a live Godot editor.
Verified · fetched 2026-10-30 · github.com/hi-godot/godot-ai
- Have you tested these MCP servers?
- No. This guide is built from each project's docs and licenses as quoted on 2026-10-30. We have not installed or benchmarked any of them.
Sources (3)
The MCP mode in the Unity CLI is not part of the deprecation. It remains fully supported.
Verified · fetched 2026-10-30 · docs.unity.com/en-us/unity-cli/replace-mcp-server-unity-cliGodot MCP enables AI agents to launch the Godot editor, run projects, capture debug output, and control project execution.
Verified · fetched 2026-10-30 · github.com/Coding-Solo/godot-mcpA lightweight MCP (Model Context Protocol) server for Blender.
Verified · fetched 2026-10-30 · blender.org/lab/mcp-server/
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