GoPeak

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GoPeak is an MCP server for Godot 4 that gives AI assistants a real edit → run → inspect → fix loop.

It is designed for trusted Godot 4 workflows: small default tool surface, setup-gated advanced capabilities, and explicit compatibility rules for older/legacy tool names.

English is the canonical source of truth. Localized READMEs are concise overviews and may lag behind README.md.

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Quick Start

Requirements

• Godot 4.x
• Node.js 18+
• MCP-compatible client such as Claude Desktop, Cursor, Cline, or OpenCode

1) Run GoPeak

npx -y gopeak

or install globally:

npm install -g gopeak
gopeak

2) Add MCP client config

{
  "mcpServers": {
    "godot": {
      "command": "npx",
      "args": ["-y", "gopeak"],
      "env": {
        "GODOT_PATH": "/path/to/godot",
        "GOPEAK_TOOL_PROFILE": "compact"
      }
    }
  }
}

compact is the default profile. It keeps the initial MCP context small and exposes additional setup-gated groups only when requested.

3) Try these prompts

• "List Godot projects in /your/projects and show project info."
• "Create scenes/Player.tscn with a CharacterBody2D root and a movement script."
• "Run the project, read the debug output, and fix the top error."
• "Use tool.catalog to find animation tools, then activate the right group."

What You Get

| Workflow | What GoPeak can do | |---|---| | Project control | Find projects, launch the editor, run/stop the game, collect debug output. | | Scene + script editing | Create scenes, add nodes, edit typed properties, create/modify GDScript. | | Resource workflows | Work with resources, materials, shaders, imports, and export-related checks. | | Debugging | Use logs, Godot LSP diagnostics, DAP breakpoints/stack traces, and runtime inspection when configured. | | Runtime testing | Capture screenshots, inspect live trees, inject input, and call runtime methods through the addon. | | Tool discovery | Keep the default surface compact, then activate capability groups with tool.catalog or tool.groups. |

Setup gates

Some capabilities require extra Godot-side services. GoPeak labels these instead of pretending everything is always available:

| Capability | Requires | |---|---| | Editor bridge scene/resource edits | godot_mcp_editor plugin enabled in the Godot project. | | Runtime inspection, screenshots, input injection | Runtime addon/socket, default port 7777. | | GDScript LSP tools | Godot LSP enabled on port 6005. | | DAP debugging tools | Godot DAP enabled on port 6006. | | Asset store/provider tools | Network access and provider availability. |

Add the Godot Plugins

Install from your Godot project folder:

curl -sL https://raw.githubusercontent.com/HaD0Yun/Gopeak-godot-mcp/main/install-addon.sh | bash

PowerShell:

iwr https://raw.githubusercontent.com/HaD0Yun/Gopeak-godot-mcp/main/install-addon.ps1 -UseBasicParsing | iex

Then enable plugins in Project Settings → Plugins:

• godot_mcp_editor for bridge-backed scene/resource tools
• godot_mcp_runtime for runtime inspection, screenshots, and input workflows

Optional shell hooks for update notifications are opt-in:

gopeak setup

gopeak setup only modifies supported bash/zsh rc files when you run it explicitly. npm install does not install shell hooks automatically.

Tool Profiles

GoPeak supports three exposure profiles:

| Profile | Use when | |---|---| | compact | Default. Trusted core tools plus dynamic groups activated on demand. | | full | Compatibility/audit mode for the full legacy surface. | | legacy | Older config alias with the same exposed behavior as full. |

Set either GOPEAK_TOOL_PROFILE or the fallback alias MCP_TOOL_PROFILE.

Dynamic groups

In compact mode, search with tool.catalog; matching groups auto-activate. You can also manage groups directly with tool.groups.

Common groups:

| Group | Status | Notes | |---|---|---| | runtime | optional-runtime | Live scene tree, properties, method calls, metrics. Requires runtime addon/socket. | | testing | optional-runtime | Screenshots, viewport capture, input injection. Requires runtime/editor setup. | | lsp | optional-lsp | Diagnostics, completion, hover, symbols. Requires Godot LSP on port 6005. | | dap | optional-dap | Breakpoints, stepping, stack traces. Requires Godot DAP on port 6006. | | asset_store | optional-network | External CC0 asset search/download. Network/provider dependent. | | class_advanced | trusted-static | ClassDB/inheritance discovery backed by static engine metadata. | | tilemap | audit-required | Must account for Godot 4.3+ TileMapLayer behavior before promotion. | | mutation groups | audit-required | Scene/resource/script/settings/signal/autoload/import/audio/navigation/theme/animation groups need fixture evidence before being marketed as fully trusted. | | intent_tracking | workflow-layer | Workflow memory/handoff helpers, not a Godot engine primitive. Keep opt-in. |

If your MCP client does not refresh after activation, reconnect the client or call the newly activated tool once to force a fresh tools/list round-trip.

GoPeak also uses cursor-based pagination for tools/list so large profiles are not dumped into context at once. Tune it with GOPEAK_TOOLS_PAGE_SIZE when needed.

Typed Godot Values

Bridge-backed scene tools such as add_node and set_node_properties accept common vector payloads for typed properties:

{
  "position": { "type": "Vector2", "x": 100, "y": 200 },
  "scale": { "type": "Vector2", "x": 2, "y": 2 }
}

Plain { "x": 100, "y": 200 } and [100, 200] are also coerced for common Vector2 fields, but tagged values are safest across tools.

Useful Commands

# run from npm
npx -y gopeak

# install globally
npm install -g gopeak

# run from source
git clone https://github.com/HaD0Yun/Gopeak-godot-mcp.git
cd Gopeak-godot-mcp
npm install
npm run build
node build/index.js

# local verification
npm run ci
npm run test:dynamic-groups
npm run test:metadata
npm run test:packaging

CLI bin names:

• gopeak
• godot-mcp

Environment & Ports

| Name | Purpose | Default | |---|---|---| | GOPEAK_TOOL_PROFILE | Tool exposure profile: compact, full, legacy | compact | | MCP_TOOL_PROFILE | Fallback profile env alias | compact | | GODOT_PATH | Explicit Godot executable path | auto-detect | | GODOT_BRIDGE_PORT | Bridge/Visualizer HTTP+WS port override | 6505 | | GOPEAK_BRIDGE_HOST | Bridge/Visualizer bind host | 127.0.0.1 | | GOPEAK_TOOLS_PAGE_SIZE | Number of tools per tools/list page | 33 | | DEBUG | Enable server debug logs | false | | LOG_MODE | Recording mode: lite or full | lite |

| Port | Service | |---|---| | 6505 | Unified Godot Bridge + Visualizer server on loopback by default. | | 6005 | Godot LSP. | | 6006 | Godot DAP. | | 7777 | Runtime addon command socket. |

Troubleshooting

• Godot not found → set GODOT_PATH.
• No MCP tools visible → restart your MCP client.
• Need a hidden tool → search with tool.catalog or activate a group with tool.groups.
• Project path invalid → confirm project.godot exists.
• Runtime tools not working → install/enable the runtime addon and check port 7777.
• Editor bridge disconnected → stop duplicate gopeak/MCP servers that may already own bridge port 6505; get_editor_status reports bridge startup errors such as EADDRINUSE.

Migration & Deprecation Policy

GoPeak treats compact as the safe default and full/legacy as compatibility profiles. Future hide, remove, rename, or API-contract changes must include:

1. old → new mapping or an explicit no-replacement note;
2. profile impact (compact, full, legacy, or opt-in group);
3. alias window and planned removal timing;
4. README/docs and release-note updates;
5. verification proving tools/list exposure and alias behavior;
6. migration prompt examples for common Godot workflows.

Current stance: legacy tool names and compact aliases remain supported. Optional external groups (runtime, testing, lsp, dap, asset_store) are setup-gated, not always-available core behavior.

Full policy: docs/migration-policy.md.

More Docs

• Documentation Map
• Architecture
• Migration Policy
• Release Process
• CHANGELOG
• ROADMAP
• CONTRIBUTING

License & Credits

MIT — see LICENSE.

• Original MCP server by Coding-Solo
• GoPeak enhancements by HaD0Yun
• Project visualizer inspired by tomyud1/godot-mcp