Rive MCP

Name: Rive MCP
Author: ODU33104

by ODU33104version 0.12.0i★ –iRuns on your computer

Registry nameio.github.ODU33104/rive-mcp

Install

Overview

Description from the maker (original English)

Free, editor-less MCP server for Rive: create, edit, render .riv — plus an AI-collaborative Studio

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "rive": {
      "command": "npx",
      "args": [
        "-y",
        "rive-mcp-server"
      ]
    }
  }
}

Run this in your terminal

claude mcp add rive -- npx -y rive-mcp-server

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "rive": {
      "command": "npx",
      "args": [
        "-y",
        "rive-mcp-server"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "rive": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "rive-mcp-server"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account ODU33104, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 18372 servers in this category
Published to the registry more recently than 81% of the other 18372 servers in this category
Basic checks equal to or better than 100% of the other 18372 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Rive MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.12.0) reached the registry 9 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, A1RO — Irish employment tools

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

rive-mcp

Create, edit, inspect, render and live-preview Rive (`.riv`) animations from Claude — no Rive editor and no subscription. The server runs on your machine; the few outside calls are listed under [Network access](#network-access).

rive-mcp is a free MCP (Model Context Protocol) server that gives Claude (or any MCP client) full control over .riv files. Unlike the official Rive MCP (which requires the editor running) or paid third-party servers, it works with nothing but a .riv file — and it can even build `.riv` files from scratch by serializing the binary format directly.

Rendering runs the official Rive runtime (@rive-app/canvas-advanced WASM) inside headless Chromium, so previews follow the runtime's output, except for the Canvas2D differences listed under Limitations.

This animation was generated entirely by riv_create — no Rive editor involved.

Highlights

Generate `.riv` from JSON — shapes, gradients, embedded PNGs, text (including text on path), bones + skinning, IK, mesh deformation, keyframe animation with easing, multi-layer state machines, listeners, events, physics baking, particles, embedded audio (WAV/MP3/FLAC) fired from the timeline or a state machine
Pro-quality by construction — 28 semantic motion presets (pop-in, staggered rise-in, breathing, stagger-in, parallax-drift, shimmer, …) with professionally tuned amplitudes/easings, an OKLCH design-token generator (riv_design_tokens), motion-quality lint rules (robotic linear movement, teleports, missing stagger), and a one-call critique loop (riv_critique: frames + objective metrics + scoring checklist)
Real vector art pipeline — import SVG (Figma/Illustrator/Iconify, or npm SVG sets like @twemoji/svg when offline) as true bezier paths (riv_import_svg, riv_asset_search), decompile existing .riv files into editable specs including gradients, blend modes and hand-tuned animation tracks (riv_decompile), plus trim paths (draw-on), clipping masks, blend modes (multiply shadows, screen glows), follow-path motion, solos and detached bezier handles in the scene spec
Losslessly edit existing `.riv` — change any property, swap text, delete subtrees (references auto-remapped)
Local web Studio — Rive-editor-style 3-pane UI (hierarchy / canvas with click-select & drag / inspector / timeline) with hot reload; edits apply live. Also includes a bezier curve editor for hand-tuning keyframe easing (drag control points, hold/linear/cubic switching, 10 one-click presets), a state machine graph view (node graph of layers/states/transitions with lint findings and live-playback state highlighting), and an onion skin overlay (0-5 surrounding frames) for checking motion at a glance
Studio keeps growing — drag-and-drop image replacement for embedded assets (lossless swap), multi-artboard tabs, named snapshot save/restore/delete, dope-sheet marquee/Shift-click multi-select with grouped drag and Ctrl+C/V copy-paste, and a bone overlay with FK drag-to-pose that bakes straight to a keyframe
Human ⇄ AI loop — a two-way Agent chat in the Studio: you type feedback (with the current selection/artboard/animation/time attached), the AI picks it up via riv_studio_notes, fixes the file, and replies into the same thread; your browser updates instantly
Auto-rig characters — one call turns a character PNG into a rigged .riv with cutout parts, bone-skinned head mesh, eye blink, idle/happy animations and a state machine
Data binding & pipeline tooling — riv_inspect decodes ViewModel definitions, instances (with resolved values), enums, converters and bind wiring — data binding inspection that few tools support yet; riv_batch_render exports many files × formats in one glob-aware call for CI, and riv_ab_compare composites two files side by side into one labeled GIF/APNG for design review
Tested end to end — test/e2e.mjs starts the server and calls its tools over JSON-RPC on samples/vehicles.riv; generated files are loaded, rendered and state-machine-driven by the official runtime in those tests

Tools (35)

Tool	What it does
`riv_list`	Recursively find `.riv` files (size, format version)
`riv_inspect`	Full metadata: artboards, animations (duration/fps/loop), state machines and inputs, plus data-binding structure (ViewModel definitions, instances with resolved values, enums, converters, bind wiring) when the file uses it
`riv_lint`	Static diagnostic: broken references, oversized embedded assets, unreachable state-machine states, unconditional self-transitions (infinite-loop risk), unused inputs, easing silently discarded on a track's last keyframe, motion-quality rules (all-linear "robotic" movement, teleporting objects, missing stagger, one-sided scale)
`riv_render_frame`	Render any moment to PNG (inline image + file)
`riv_render_gif`	Turn an animation into a preview GIF
`riv_render_apng`	Animated PNG export — 24-bit color + alpha transparency (plays on GitHub)
`riv_render_video`	Record an animation or state machine to WebM video
`riv_render_sprites`	Sprite-sheet PNG + JSON metadata (for game engines)
`riv_batch_render`	Render a list of jobs — single files or globs — to png/gif/apng/webm/sprites in one call; per-job error isolation and a timing report, built for CI
`riv_play_state_machine`	Set/fire inputs → advance → state-transition report (+ optional frame captures)
`riv_generate_code`	Integration code with real artboard/SM/input names (React / JS / Vue / Svelte / Flutter)
`riv_create`	Build a `.riv` from a JSON scene spec — validated with the official runtime, returns a preview. Supports bezier-handled vertices, elastic easing, gradients, physics baking, particles, and semantic motion presets (`{"preset":"pop-in","target":"card"}` expands server-side into professionally tuned keyframes — entrances/exits/emphasis/ambient loops, with `stagger` for groups). Also embeds audio (WAV/MP3/FLAC) fired from timeline frames or state-machine entry — the AudioAsset/AudioEvent are written correctly but only play back in a GPU-backed Rive runtime, not this server's own preview
`riv_design_tokens`	Generate design tokens before designing: OKLCH-harmonized palette (+WCAG contrast), gradient pairs, Material-Motion durations & easing roles, spacing/radius/type scales — deterministic from seed color + mood
`riv_import_svg`	SVG → Rive bezier shapes (Figma/Illustrator exports, icons, illustrations): full cubic vertices, multi-contour paths, gradients, strokes, nested transforms — so the AI composes pro artwork instead of drawing with primitives. Fragments plug into riv_create via `imports`
`riv_asset_search`	Search Iconify's ~200k professionally designed icons and import one directly as Rive shapes (needs network)
`riv_lottie_import`	Lottie/bodymovin JSON → Rive scene fragment — pulls in LottieFiles' huge library of free professionally-animated assets art and choreography: keyframed transforms with exact bezier easing curves (not preset-approximated), path morphing (per-vertex keyframes), shape/null/precomp layers, gradients, trim-path draw-on, visibility windows. Unsupported bits (text layers, masks, mattes, …) are counted, not silently dropped
`riv_decompile`	.riv → editable scene spec: study or remix professional files (bezier paths, gradients, solos, trim paths, animations with named easings); unsupported types are counted, not silently dropped
`riv_critique`	One-call review bundle that makes motion visible to a VLM: a filmstrip (frames left→right), an onion-skin overlay (motion trails), a motion report (net displacement vector per animated object), objective metrics (bezier ratio, palette flags, easing distribution) + lint findings + a fixed 7-axis scoring checklist incl. spatial/directional coherence (does each mover travel toward its artwork's front? is the perspective consistent?)
`riv_edit`	Lossless editing of existing `.riv` files: set properties, swap named text, delete subtrees, add/replace/remove keyframes
`riv_optimize`	Shrink a `.riv` without changing its visual output: remove unreferenced interpolators/events/empty tracks left over from prior edits, thin redundant keyframes on strictly-linear runs (Douglas-Peucker, easing-safe — cubic/hold segments are never touched), with a `dryRun` report of the plan
`riv_repair`	Repair lint findings that can be fixed safely, one change at a time. Each candidate is compared pixel by pixel with the original, and a change that alters the rendering is skipped with the reason. Covers unused inputs, dead easing, broken references and unused interpolators. `dryRun` reports the plan without writing anything. Writes to `out`; without `out`, `.repaired.riv` is created next to the source
`riv_export_lottie`	Export one animation of a `.riv` to Lottie JSON. Features that cannot be converted are listed as `lost`, approximated ones as `approximated`. Pixel comparison is reported as unverified
`riv_preflight`	Check which runtimes can run a `.riv`. Detects the features the file uses and returns `ok` / `warn` / `unsupported` / `unknown` for each target (web, iOS, Android, Flutter, Unity, React Native). The compatibility table covers only combinations with a documented source; everything else is `unknown`. Also tries loading the file in the bundled official WASM runtime
`riv_extract_assets`	Extract embedded images/fonts from a `.riv`
`riv_visual_diff`	Pixel diff of two `.riv` files with a highlighted diff image
`riv_ab_compare`	Render two `.riv` files under identical conditions into one labeled side-by-side (or stacked) GIF/APNG for human review — where riv_visual_diff measures a pixel-level delta, this one is for eyeballing two different things playing next to each other
`riv_dump`	Low-level binary structure dump (typeKeys / properties / hierarchy)
`riv_slice_image`	Cut character parts out of a PNG by polygon (for cutout rigging)
`riv_rig_character`	Character PNG → fully rigged `.riv` in one call
`riv_diff`	Structural diff between two `.riv` files
`riv_studio`	Local web Studio: Rive-editor-style dark UI — hierarchy tree, canvas select/drag/resize, inspector, keyframe timeline editing, bezier curve editor (drag control points, hold/linear/cubic, 10 easing presets), state machine graph view (node graph, transition details, lint-highlighted states, live playback highlighting), onion skin overlay, undo/redo, playback speed, one-click export (PNG/APNG/GIF/WebM), live preview + hot reload, EN/JA. `share: true` also opens a read-only LAN view behind an unguessable token URL (play / scrub / state-machine inputs only; the editable Studio stays on 127.0.0.1)
`riv_studio_notes`	Read the Studio's Agent chat (with auto-attached context: selection, artboard, animation, playback time) and post replies back into it

| riv_ui_detect | **Read a UI screens

Only the beginning is shown; read the rest in the repo

Rive MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

A1RO — Irish employment tools

README from the maker

rive-mcp

Highlights

Tools (35)