MCP server

Equation.io Official

io.equation/equation

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Create interactive 2D and 3D graphs with validated equations, shareable links, and PNG previews.

Website Source

At a glance

Type

MCP server

Publisher

equation.io (verified by the MCP Registry)

Status

Working at last check

Tools

3

Token cost

About 976 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http equation https://equation.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.equation]
url = "https://equation.io/mcp"

Gemini CLI

{"mcpServers":{"equation":{"httpUrl":"https://equation.io/mcp"}}}

Cursor

{"mcpServers":{"equation":{"url":"https://equation.io/mcp"}}}

VS Code

{"servers":{"equation":{"type":"http","url":"https://equation.io/mcp"}}}

Antigravity

agy mcp add equation https://equation.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"equation","server_url":"https://equation.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"equation","server_url":"https://equation.io/mcp"}

Tools

• decode_graph_url ~134 tokens
  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 documented in the "syntax" MCP resource (also at https://equation.io/llms.txt).
• encode_graph_url ~531 tokens
  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 existing graph (see decode_graph_url), include unchanged rows too. Rows can be: equ
• show_graph ~311 tokens
  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", one equation or definition per string, preserving unchanged rows when editing. For

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