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., "@TI 84 math practice MCP Find the roots, vertex, and opening direction for y = -2x^2 + 4x - 1"
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.
A small local companion to TI 84 Calculator Online. The website provides a browser graphing calculator with a keypad, Y= input, graph, tables, lists, and matrices. This MCP server helps prepare and check two common practice tasks; it does not control or replace the website.
quadratic_report calculates the discriminant, roots, vertex, opening direction, and a starting x-window for ax² + bx + c.
summary_statistics calculates count, min/max, mean, median, and population and sample standard deviations from a numeric list.
get_official_links returns the calculator and guide pages.
For a quadratic, work out the roots on paper, then enter the function in the TI 84 Calculator Online Y= screen and compare the graph, vertex, and table. The suggested window is only a starting point; zoom and trace as needed. For statistics, compare both sample and population standard deviations so you choose the one your assignment asks for.
Node.js 20.18.1 or newer:
npm install
npm test
node index.mjsConfigure your MCP client to start node /absolute/path/to/ti84-mcp/index.mjs over stdio. No login or network request is made by this server. MIT license; see LICENSE.
Return the online calculator and guide pages.
Inputs: no named parameters.
Compute discriminant, roots, vertex, and a starting x-window for graph practice.
Inputs: a (required), b (required), c (required).
Compute mean, median, range, and population/sample standard deviations for a small list.
Inputs: values (required).
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Scored across 3 tools
Each tool targets a clearly distinct operation: quadratic analysis, descriptive statistics, and link retrieval. There is no realistic way for an agent to confuse these purposes.
Two tools use noun-phrase names (quadratic_report, summary_statistics) while one uses a verb_noun pattern (get_official_links). The names are readable but the convention is mixed rather than predictable.
Three tools is on the thin side, but each covers a distinct, useful function for a narrow math-practice helper. The scope is small but not mismatched.
The surface covers quadratic analysis, basic statistics, and reference links, but omits other likely practice areas such as linear equations, systems, trigonometry, or general graphing windows. These are notable gaps for a broader TI-84 math-practice domain.
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