5 tools, in alphabetical order (this isn't a ranking). Check each tool's commercial-use notes before you ship assets in a game.
| Tool | Free plan | Commercial use | API | MCP |
|---|---|---|---|---|
 Cascadeur | Free plan | Commercial on paid plans only | Available | Unverified |
 DeepMotion Animate 3D | Free plan | Commercial on paid plans only | Available | None found |
 Meshy | Free plan | Commercial use allowed | Available | Official MCP server |
 Rokoko Vision | Free plan | Commercial use unverified | Unverified | Unverified |
 Unity AI | Free plan | Commercial use unverified | Not applicable | Official MCP server |
Physics-based keyframe animation software with AI-assisted autoposing, inbetweening and mocap cleanup; exports FBX, DAE, USD and glTF on paid plans.
Verdict: For hand-keyed character animation with AI posing help; free is non-commercial, and Indie only covers studios under $100k a year in revenue/funding.
Markerless AI motion capture: turns ordinary video into 3D character animation; sister product SayMotion does text-to-motion.
Verdict: For turning reference video into 3D animation cheaply; the free Freemium tier is non-commercial only.
Text-to-3D and image-to-3D model generation with AI texturing; paid plans add animation with 600+ motions. DCC bridge listed for Roblox, Blender, Godot, Unity and Unreal.
Verdict: For quick text- or image-to-3D props with Godot/Unity/Unreal bridges; free output is CC BY 4.0, so you must credit Meshy unless you pay.
AI motion capture from video plus text-to-motion clips, exported via Rokoko Studio as FBX/BVH for Unity, Unreal, Blender and other tools.
Verdict: For trying video-based mocap for free (30 seconds a month); commercial terms for its output are unverified.
AI built into the Unity Editor: an Assistant for project questions and code, plus generators for images, textures, materials, sounds, 3D models and animations, metered in Unity Credits.
Verdict: For Unity users who want AI inside the editor, with monthly credits included on Personal, Pro and Enterprise plans; AI-output licence terms are unverified.