Equation.io
Create interactive 2D and 3D graphs with validated equations, shareable links, and PNG previews.
Connect it
Settings → Connectors → Add custom connector
URL: https://equation.io/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://equation.io/mcp{
"mcpServers": {
"equation": {
"url": "https://equation.io/mcp"
}
}
}claude mcp add --transport http equation https://equation.io/mcp{
"servers": {
"equation": {
"type": "http",
"url": "https://equation.io/mcp"
}
}
}3 tools, verified live
encode_graph_urlread-onlyBuild 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: equations and inequalities in x,y (curves, regions; z makes it 3D), bare expressions in x, y (scalar fi
decode_graph_urlread-onlyDecode 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).
show_graphread-onlyDisplay 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 a slider use "a = 2" then "y = a sin(x)". For advanced syntax read the "syntax" resource (https://eq
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