Create Rive Animations
with AI

166 MCP tools that let any AI assistant create, edit, and export production-ready Rive files — standalone. Now multi-format: author Spline 3D scenes too, and convert Rive↔Spline with a per-decision loss report — runtime-validated before you ship. No Rive app, no account, no AI credits. Runs headless in CI or any MCP client.

Try Free Subscribe — $10/mo

Everything You Need

166 MCP Tools

Shapes, text, images, bones, meshes, constraints, events, nested artboards, data binding, Luau scripts, shaders — plus a full animation toolkit and runtime validation.

Physics Engine

Gravity, bounce, wind, springs — baked to optimized keyframes at compile time.

Runtime .riv + Editor .rev

Export both formats from scratch — runtime .riv for your app, and editable .rev that opens right in the Rive editor. No Rive app required to write them.

Spline 3D + Rive↔Spline Conversion

Author Spline scenes from scratch — editable .spline and runtime .splinecode — and convert Rive↔Spline both ways. Every conversion ships an honest per-decision loss report: what came across clean, what was reconstructed, what needs your call.

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Scene Composer

Describe a scene in JSON — backgrounds, characters, particles, physics — and get a complete .riv file in one call.

290

All Rive Types

Every concrete type in the latest Rive runtime is supported. Shapes, bones, meshes, state machines, data binding, scripting — nothing missing.

∞

Standalone & Headless

No Rive app, no account, no AI credits. Runs unattended in CI, servers, and batch pipelines — Claude, Cursor, Windsurf, Cline, or any MCP client. Native binaries for macOS, Windows & Linux.

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Animation Toolkit

Morph shapes, draw-on strokes, auto-rig outlines with skeletal bones, warp images with meshes, send objects along motion paths, build sprite flipbooks, and wire one-call hover / press / tap interactions.

✓

Runtime Validation

Polymation loads and runs your file in the real Rive runtime — catching files that silently won't load, animations that render but never move, and broken state machines before you ship. Simulate inputs, lint, preview as GIF. Nothing else can do this headlessly.

How Polymation compares

In 2026 Rive shipped an official MCP — but it lives inside the desktop editor and drives it like a remote control: the Rive app has to be open, you need a paid Rive plan with AI credits, and a human confirms every change. Polymation writes the files itself.

Polymation

Rive's official MCP

Runs standalone

✓writes .riv / .rev directly

×needs the Rive app open

Rive account & AI credits

✓none needed

×paid plan + credits

Headless / CI / automation

✓fully unattended

×GUI + manual confirm

Output

✓portable .riv + editor .rev files

live edits in the running editor

MCP clients

✓Claude, Cursor, Windsurf, Cline…

Cursor-first (Early Access)

Platforms

✓macOS, Windows, Linux + npm

macOS & Windows desktop only

Scripts & shaders

✓generated, editor-ready

✓in-editor

Verify it actually works

✓loads & runs the file in the real runtime — validate, simulate state machines, lint

×eyeball it in the editor

Animation toolkit

✓morph, auto-rig, trim, motion paths, one-call interactions

manual, in the editor

Different tools for different jobs. The official one is great if you already live in the Rive editor. Polymation is for everyone who wants Rive files generated programmatically, offline, and at scale — in a build, a server, or a one-line prompt.

From Prompt to Animation

"Make a card with lorem ipsum text
 that glows when you hover over
 the card, highlights each word
 as you hover, and twinkles like
 a star"

→

glow-card.riv
Hover over the card above!
State machine + text + sparkles

Simple Pricing

$10/month

Full access to all 166 MCP tools

All shape, style, and animation tools
State machines and event system
Physics engine and prefab library
Scene composer (JSON to .riv)
Runtime .riv + editor .rev export
Luau scripts & shaders
All 290 Rive type support
One-command install via npm
Cancel anytime

Subscribe Now

Want to try it first? Download free — 3 exports included, no account needed.

Frequently Asked Questions

What is MCP?

An open standard that lets AI assistants use external tools. Polymation plugs into any MCP client.

How is this different from Rive's official MCP?

Rive's official MCP is built into their desktop editor — it requires the Rive app to be open and running, a paid Rive plan with AI credits, and a manual confirmation on every change. It remote-controls the live editor. Polymation is a standalone codec: it writes .riv (runtime) and .rev (editor) files directly — no Rive app, no account, no credits, no human in the loop. That makes it the only option for fully automated, headless generation in CI, servers, and batch pipelines.

Which AI clients work with it?

Claude Desktop, Cursor, Windsurf, Cline, and any other MCP-compatible client.

Do I need a Rive account?

No. Polymation generates .riv files directly. Preview them in the Rive editor or any Rive runtime.

What can it do?

Shapes, text, images, bones, meshes, IK constraints, skinning, keyframe animation, state machines, listeners, events, nested artboards, scroll containers, data binding, Luau scripts, shaders, physics simulation, and scene composition. It generates production-ready .riv and editable .rev files with all 290 Rive runtime types supported.

What can't it do?

It's not a replacement for artists. It builds animations programmatically from structured instructions — it won't draw original illustrations, paint textures, or design characters from scratch. Think of it as an animation engineer, not an illustrator. Pair it with artist-created assets for the best results. More capabilities are actively in development.

Can I cancel?

Anytime. Your key stays active until the end of the billing period.

Create Rive Animations with AI