Not reviewed
No score, grade or rank. This listing is facts from the official MCP registry and our own checks, and it stays out of the rankings until the panel reviews it.
Create interactive 2D and 3D graphs with validated equations, shareable links, and PNG previews.
Facts
- MCP registry
io.equation/equation· 1.0.1- Endpoint
https://equation.io/mcp- Website
- equation.io
- GitHub stars
- 406
- Registry entry
- updated 2 Oct 2026
From the official MCP registry, the package registries and our own checks. JSON · Markdown
Why it's listed
- It's published in the registry under equation.io, a namespace the registry only gives to whoever proves they control that domain.
- It's in real use: 406 GitHub stars.
Being indexed says nothing about quality, and nobody can pay for it. Is this yours? Ask for a review.
Tools it lists 3 · about 1,559 tokens of context · checked 23 hours ago
| Tool | What it does | Hint |
|---|---|---|
encode_graph_urlCreate a graph link | Build an equation.io graph link, validating every row with the app's parser. Pass the COMPLETE graph in "equations": a flat array of strings, one equation or definition per string, in display order — when editing an… | read-only |
decode_graph_urlRead a graph link | Decode an equation.io link (either the #-fragment form or the /g/ share form) into its list of equation rows, so you can edit them and build a new link with encode_graph_url. The rows use the equation.io syntax… | read-only |
show_graphShow an interactive graph | Display an interactive equation.io graph inside the conversation, with editable equations, sliders, pan/zoom, and 3D rotation. Use when the user asks to see or explore a graph. Pass the COMPLETE graph as "equations",… | read-only |
What https://equation.io/mcp answered to tools/list, asked without credentials. answered without the initialize handshake. The token figure is the size of the list as sent, divided by four; a model sees about that much before it calls anything. Full definitions, input schemas included, are in the listing's JSON under mcpTools.
How its tools read to an agent 0 errors · 0 warnings · 0 notes
Nothing to flag: every tool reads cleanly to an agent.
The checks from /check and anchor check, run each day on the list above: about 1,559 tokens of definitions. Not part of the score yet. Check your own server.