AI-friendly 3D tools
6 picks, each scored out of 18 on how well an AI agent can drive it. How scoring works
- Codex CLI
Open source terminal agent from OpenAI with MCP client support and sandboxed command runs.
- MCP
- CLI
- Text
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
AI coding agentsApache 2.0 CLI; model usage via ChatGPT plan or API134,915 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- Gemini CLI
Open source terminal agent with a generous free quota, large context and MCP support.
- MCP
- CLI
- Text
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
AI coding agentsApache 2.0; free quota with Google account108,780 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- Claude Code
Terminal agent that edits whole projects, runs the headless engine and connects to any MCP bridge above.
- MCP
- CLI
- Text
- llms.txt
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
AI coding agentsClaude subscription or API usageLink verified Nov 11, 2026
- earshot
Gives coding agents ears: MCP tools that describe, rank, measure and critique sound, CPU only.
- MCP
- CLI
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Mostly text; some binary assets.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
AudioOpen source4,525 GitHub starsLast commit Nov 6, 2026Link verified Nov 11, 2026
- Godot
Scenes (.tscn) and GDScript are plain text an agent edits directly, and the editor runs headless for builds and tests.
- CLI
- Text
- Open
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
EnginesMIT119,996 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- three.js
The default 3D library for the web; huge example corpus means agents rarely guess.
- CLI
- Text
- Open
- llms.txt
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
EnginesMIT118,182 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- Bevy
Code-only Rust ECS engine: the whole game is source files, and the compiler checks agent edits.
- CLI
- Text
- Open
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
EnginesMIT or Apache 2.049,695 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- Blender MCP
Agent runs Python inside live Blender, pulls Poly Haven assets and calls Hyper3D generation.
- MCP
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Mostly text; some binary assets.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Engine MCP bridgesMIT34,043 GitHub starsLast commit Nov 4, 2026Link verified Nov 11, 2026
- Blockbench MCP
Plugin that exposes Blockbench modeling, texturing and animation to MCP clients.
- MCP
- Text
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Some automation (plugin scripting inside the GUI).
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Engine MCP bridgesGPL 3.0618 GitHub starsLast commit Nov 7, 2026Link verified Nov 11, 2026
- Defold
Small 2D-first engine with text collection files, Lua scripts and the bob.jar command line builder.
- CLI
- Text
- llms.txt
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free to use, or source available.
- Active in 2026
- Commits or releases in the last 30 days.
EnginesDefold License (source available, free)6,462 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- GitHub Copilot
Agent mode in VS Code and Rider plus a cloud coding agent that opens PRs; MCP capable.
- MCP
- Text
- llms.txt
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
AI coding agentsFree plan with limits; Pro paidLink verified Nov 11, 2026
- Godot MCP
Lets an agent launch the Godot editor, run the project and read debug output, closing the edit and test loop.
- MCP
- CLI
- Text
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Occasional 2026 updates.
Engine MCP bridgesMIT6,610 GitHub starsLast commit Apr 16, 2026Link verified Nov 11, 2026
- Tiled
2D tile map editor with XML or JSON maps, CLI export and a JavaScript scripting API.
- CLI
- Text
- Open
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Level designGPL 2.0; pay what you want13,049 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- Unity-MCP (AI Game Developer)
Unity MCP plus CLI and runtime tools; any C# method becomes an agent tool with one attribute.
- MCP
- CLI
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Engine MCP bridgesApache 2.04,627 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Engine MCP bridgesMIT (needs Aseprite)976 GitHub starsLast commit Nov 3, 2026Link verified Nov 11, 2026
- Blender
Full 3D suite with a complete Python API and `blender -b` headless mode; the most agent-drivable DCC.
- CLI
- Open
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
3DGPL21,883 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Some automation (plugin scripting inside the GUI).
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
3DGPL 3.06,192 GitHub starsLast commit Nov 5, 2026Link verified Nov 11, 2026
- Cursor
AI code editor with agent mode, MCP servers and a CLI agent; good for C# and C++ engine code.
- MCP
- Text
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
AI coding agentsHobby free; Pro paidLink verified Nov 11, 2026
- GdUnit4
Godot test framework with scene runners, input simulation, C# support and a CI action.
- CLI
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Testing and perfMIT1,301 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- LÖVE
Tiny Lua 2D framework: a game is a folder of .lua files, run with one command.
- CLI
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Engineszlib8,943 GitHub starsLast commit Nov 5, 2026Link verified Nov 11, 2026
- Phaser
HTML5 game framework in plain JS or TS, the language agents write best, with instant browser preview.
- CLI
- Text
- Open
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
EnginesMIT40,697 GitHub starsLast commit Aug 21, 2026Link verified Nov 11, 2026
- Poly Haven
CC0 HDRIs, PBR textures and models with a public API, already wired into Blender MCP.
- CLI
- Open
- llms.txt
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Asset librariesCC0Link verified Nov 11, 2026
- Unity MCP
Bridge from Claude, Cursor and others into the Unity Editor: scenes, assets, scripts and console.
- MCP
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Engine MCP bridgesMIT15,895 GitHub starsLast commit Oct 30, 2026Link verified Nov 11, 2026
- Unreal MCP
MCP server plus a native C++ automation bridge: agents spawn actors, edit Blueprints and run the editor.
- MCP
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Engine MCP bridgesMIT1,032 GitHub starsLast commit Nov 10, 2026Link verified Nov 11, 2026
- Aseprite
The pixel art and sprite animation standard, with a batch CLI, Lua scripting and JSON sheet export.
- CLI
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Free to use, or source available.
- Active in 2026
- Commits or releases in the last 30 days.
2D and pixel$19.99 one-time; source available to build yourself40,865 GitHub starsLast commit Nov 10, 2026Link verified Nov 11, 2026
- Dialogue Manager
Branching dialogue written in a screenplay-like .dialogue text format agents can author.
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Godot add-onsMIT3,980 GitHub starsLast commit Nov 6, 2026Link verified Nov 11, 2026
- ElevenLabs Sound Effects
Text to sound effects and voice over an API, with an official hosted MCP server (OAuth, nothing to install).
- MCP
- CLI
- llms.txt
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
AudioFree monthly credits; paid plansLink verified Nov 11, 2026
- func_godot
Imports TrenchBroom .map files into Godot scenes, so text levels become playable geometry.
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Level designMIT889 GitHub starsLast commit Nov 8, 2026Link verified Nov 11, 2026
- GUT
Godot unit testing in GDScript, runnable from the command line so agents can verify their own edits.
- CLI
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
Testing and perfMIT2,782 GitHub starsLast commit Aug 18, 2026Link verified Nov 11, 2026
- LDtk
Modern 2D level editor from the Dead Cells director; one JSON file with a published schema.
- Text
- Open
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Some automation (plugin scripting inside the GUI).
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Level designMIT4,895 GitHub starsLast commit Nov 5, 2026Link verified Nov 11, 2026
- LimboAI
Behavior trees plus hierarchical state machines for Godot NPCs, with a visual debugger.
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Godot add-onsMIT3,117 GitHub starsLast commit Oct 30, 2026Link verified Nov 11, 2026
- Maaack's Game Template
Main, pause and options menus, loading screens and input rebinding as plain scenes, the shell every build needs.
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Godot add-onsMIT1,732 GitHub starsLast commit Oct 29, 2026Link verified Nov 11, 2026
- Meshy
Text and image to textured 3D models over a REST API, with an official MCP server.
- MCP
- CLI
- llms.txt
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
3DFree credits monthly; paid plansLink verified Nov 11, 2026
- Phantom Camera
Cinemachine-style cameras for Godot: follow, framing and blends set as node properties.
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Godot add-onsMIT3,657 GitHub starsLast commit Nov 9, 2026Link verified Nov 11, 2026
- PixelLab
AI pixel art: characters with directional views, animations and tilesets, via API and MCP.
- MCP
- CLI
- llms.txt
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
2D and pixelFree trial; paid plansLink verified Nov 11, 2026
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Testing and perfMIT11,300 GitHub starsLast commit Nov 11, 2026Link verified Nov 11, 2026
- RenderDoc MCP
Hands GPU frame captures to an agent: draw calls, state and resources, for rendering bugs.
- MCP
- Open
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
Engine MCP bridgesMIT383 GitHub starsLast commit Jun 9, 2026Link verified Nov 11, 2026
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
Godot add-onsMIT3,325 GitHub starsLast commit Sep 20, 2026Link verified Nov 11, 2026
- Dialogic 2
Timeline editor for characters, portraits and events; timelines save as readable text.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Mostly text; some binary assets.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Godot add-onsMIT (2.0 still alpha)6,165 GitHub starsLast commit Nov 7, 2026Link verified Nov 11, 2026
- ProtonScatter
Procedural placement of props, grass and rocks along shapes, defined as stacked text resources.
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
Godot add-onsMIT3,027 GitHub starsLast commit Sep 27, 2026Link verified Nov 11, 2026
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Some automation (plugin scripting inside the GUI).
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Level designGPL 3.02,904 GitHub starsLast commit Nov 10, 2026Link verified Nov 11, 2026
- Tripo
Fast image to 3D with auto rigging, an API and an official MCP server.
- MCP
- CLI
- llms.txt
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Regular 2026 releases or commits.
3DFree credits; paid plansLink verified Nov 11, 2026
- Unity
Biggest asset and tutorial ecosystem; batchmode builds and strong community MCP bridges make it agent-workable.
- llms.txt
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
EnginesPersonal free under revenue cap; Pro paidLink verified Nov 11, 2026
- Unreal Engine
Top-end 3D with editor Python scripting and commandlets; agents work through MCP bridges since assets are binary.
- llms.txt
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free to use, or source available.
- Active in 2026
- Commits or releases in the last 30 days.
EnginesFree until $1M gross revenue, then 5% royaltyLink verified Nov 11, 2026
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Asset librariesCC0Link verified Nov 11, 2026
- Freesound
Huge Creative Commons sound library with a search and download API; filter to CC0.
- CLI
- Open
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
AudioPer-sound CC licensesLink verified Nov 11, 2026
- Higgsfield 3D
Image to GLB generation plus image and video models, all behind one official MCP server.
- MCP
- llms.txt
- MCP or agent integration
- Official MCP server or first-party agent integration.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
3DCredits; paid plansLink verified Nov 11, 2026
- Hyper3D Rodin
High quality text and image to 3D; built into Blender MCP so agents can generate in-scene.
- CLI
- llms.txt
- MCP or agent integration
- Mature community MCP server or plugin, widely used.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
3DTrial credits; paid plansLink verified Nov 11, 2026
- Juicee
Game feel graphs for Godot: hit-stop, flashes, punches and shakes without hand-written tweens.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Mostly text; some binary assets.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Godot add-onsMIT172 GitHub starsLast commit Oct 14, 2026Link verified Nov 11, 2026
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
2D and pixelMIT11,071 GitHub starsLast commit Nov 10, 2026Link verified Nov 11, 2026
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Full headless CLI or HTTP API; runs in CI.
- Text project files
- Mostly text; some binary assets.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Paid only.
- Active in 2026
- Commits or releases in the last 30 days.
AnimationEssential $69, Professional $3695,359 GitHub starsLast commit Nov 10, 2026Link verified Nov 11, 2026
- Terrain3D
High performance editable terrain for Godot in C++, with a GDScript API for generation.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Godot add-onsMIT4,762 GitHub starsLast commit Nov 10, 2026Link verified Nov 11, 2026
- Tracy
Frame profiler for CPU, GPU and memory, with capture and CSV export tools for headless runs.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Testing and perfBSD 3-Clause17,111 GitHub starsLast commit Nov 10, 2026Link verified Nov 11, 2026
- Debug Draw 3D
One-line calls to draw rays, paths and volumes in game, so agents can make their logic visible in screenshots.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Mostly text; some binary assets.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Occasional 2026 updates.
Godot add-onsMIT1,080 GitHub starsLast commit Apr 4, 2026Link verified Nov 11, 2026
- jsfxr
Retro sound effect generator whose sounds are small parameter strings an agent can write.
- Text
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Plain, diffable text an LLM can read and edit directly.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Occasional 2026 updates.
AudioUnlicense464 GitHub starsLast commit May 5, 2026Link verified Nov 11, 2026
- LibreSprite
Free GPL fork of old Aseprite with the same batch CLI basics and JavaScript scripting.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
2D and pixelGPL 2.08,780 GitHub starsLast commit Oct 30, 2026Link verified Nov 11, 2026
- Godot VAT plugin
Vertex animation textures on MultiMesh: hundreds of animated characters in one draw call.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Text exists but is noisy (GUIDs, generated YAML) or export only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
Godot add-onsMIT131 GitHub starsLast commit Oct 5, 2026Link verified Nov 11, 2026
- Poly Pizza
Searchable low-poly model library with an API; searchable from Blender MCP setups.
- Open
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Scriptable or batch mode, with gaps.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
Asset librariesCC0 and CC-BY per modelLink verified Nov 11, 2026
- Rive
Interactive vector animation with state machines, runtimes for Unity, Unreal and the web.
- llms.txt
- MCP or agent integration
- Unofficial or early MCP server, or works through another tool's MCP.
- Headless, CLI or API
- Some automation (plugin scripting inside the GUI).
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough docs plus llms.txt or a docs MCP.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
AnimationFree plan; paid seatsLink verified Nov 11, 2026
- Kenney
Tens of thousands of consistent CC0 sprites, models, UI and audio; perfect placeholder to ship quality.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Some automation (plugin scripting inside the GUI).
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Commits or releases in the last 30 days.
Asset librariesCC0Link verified Nov 11, 2026
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- Some automation (plugin scripting inside the GUI).
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Thorough reference docs.
- Open source or free tier
- Free tier or free under a revenue cap.
- Active in 2026
- Commits or releases in the last 30 days.
AnimationFree under revenue cap; Pro paidLink verified Nov 11, 2026
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- GUI only.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Regular 2026 releases or commits.
Asset librariesCC0Link verified Nov 11, 2026
- OpenGameArt
Long-running community library of free 2D, 3D and audio assets under open licenses.
- Open
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- GUI only.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Open source (OSI license) or CC0.
- Active in 2026
- Occasional 2026 updates.
Asset librariesPer-asset licensesLink verified Nov 11, 2026
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- GUI only.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Free to use, or source available.
- Active in 2026
- Regular 2026 releases or commits.
AudioRoyalty free, no attributionLink verified Nov 11, 2026
- Mixamo
Free auto rigging and a large mocap clip library for humanoids; still the fastest rig for prototypes.
- MCP or agent integration
- No way for an agent to drive it.
- Headless, CLI or API
- GUI only.
- Text project files
- Binary or opaque outputs only.
- Docs and llms.txt
- Usable docs with gaps.
- Open source or free tier
- Free to use, or source available.
- Active in 2026
- Occasional 2026 updates.
AnimationFree with Adobe IDLink verified Nov 11, 2026
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