Provides tools for constructing and manipulating SVG scenes — creating typed scene graphs, building exact Bézier paths, applying atomic patches, generating perceptually-interpolated gradients, and animating with keyframes and spring/bézier easing — then rendering those SVG scenes to raster output.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@FastSVG MCP Server Create a 512x512 scene with a blue circle and render it to PNG."
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
AI models shouldn't guess coordinates. FastSVG computes them.
Geometry, color, motion and APNG — solved with math, exposed over MCP.
git clone https://github.com/Syron01/fastsvg && cd fastsvg
npm install && npm testnpx tsx apps/cli/src/main.ts render scene.json --out out.png # scene → PNG
npx tsx apps/cli/src/main.ts compare a.png b.png # pixel diffRelated MCP server: svg-mcp
{ "mcpServers": { "fastsvg": { "command": "npx", "args": ["fastsvg-mcp"] } } }"Animate the box 20px right, ease-in-out, export a 10fps APNG."
Ten tools: create_scene · apply_patch · build_path · create_gradient · render_png · export_apng · compare_images · …
scene-ir | typed scene model, atomic patches |
geometry | exact Bézier bounds, arc length, reverse |
color-engine | sRGB ↔ linear ↔ OKLab, WCAG contrast |
gradient-engine | perceptual stops, ΔE banding report |
motion-engine | keyframes, cubic-bezier, damped springs, loop-seam check |
raster | alpha blending, 2×2 anti-aliased fills |
apng-exporter | PNG/APNG codec written from scratch |
frame-pipeline | scene + timeline → deterministic APNG |
vision | pixel diff, changed-region bbox, silhouette IoU |
Boolean ops, gradient raster fills and delta-frame APNG aren't implemented yet. Everything shipped is tested — full spec · live demo.
This server cannot be deployed
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MCP server for progressive tool usage at any scale (see https://klavis.ai)
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Generate images from Claude, ChatGPT, Cursor and Codex with 12 top AI image models. Up to 4 images per call, SVG vectorization, background removal, upscaling and image-to-video. Remote MCP with OAuth, no API keys.