UpMath Server

MCP server that gives Claude Code direct access to LaTeX rendering via the UpMath API. Renders equations, TikZ diagrams, and full documents to SVG/PNG without a local TeX installation.

Tools

Tool	Description
render_equation	Render LaTeX equation to SVG or PNG
render_tikz	Render TikZ/pgfplots/circuitikz diagram to SVG or PNG
render_batch	Render multiple equations at once, saving to files
render_markdown_with_math	Render markdown with $$...$$ math to HTML with embedded SVGs
check_syntax	Validate LaTeX syntax without saving
get_render_url	Get the UpMath URL for embedding in HTML/markdown

Supported Packages

Everything TeX Live supports, including:

Category	Packages
Math	All standard LaTeX math, mathrsfs, esvect, stmaryrd
Graphics	tikz + libraries, tikz-3dplot, pgfplots, pgflibrary
Diagrams	circuitikz (circuits), bussproofs (proofs)
Chemistry	mhchem
Formatting	array, xcolor, kotex

Setup

git clone https://github.com/danielsimonjr/upmath-mcp.git
cd upmath-mcp
npm install

Add to ~/.claude/.mcp.json:

{
  "mcpServers": {
    "upmath": {
      "command": "node",
      "args": ["/path/to/upmath-mcp/server.js"]
    }
  }
}

Restart Claude Code. The rendering tools will be available.

Examples

Render the quadratic formula:

render_equation({ latex: "\\frac{-b \\pm \\sqrt{b^2-4ac}}{2a}", format: "svg" })

Render a circuit:

render_tikz({
  tikz: "\\begin{circuitikz}\\draw (0,0) to[R, l=$R_1$] (2,0) to[C, l=$C_1$] (4,0);\\end{circuitikz}",
  packages: ["circuitikz"],
  format: "svg",
  saveTo: "circuit.svg"
})

Self-Hosting

You can run your own UpMath renderer:

docker run -t -p 8080:80 ghcr.io/parpalak/i.upmath.me:master

Then set UPMATH_URL=http://localhost:8080 in your environment.

License

MIT

Credits

• UpMath by parpalak — the rendering engine
• i.upmath.me — the LaTeX-to-SVG API