@Flupke68
基本信息
Stop hallucinating numbers. Every math expression runs on eight independent engines in parallel — when they disagree, you know the answer is numerically unreliable.
使用下面的配置,将此服务器添加到你的 MCP 客户端。
{
"mcpServers": {
"ultimath": {
"command": "npx",
"args": [
"-y",
"ultimath-mcp"
],
"env": {
"ULTIMATH_API_KEY": "your_api_key"
}
}
}
}Verify any numeric result that has to be trusted, via the Ultimath API (https://ultimath.ai). Use this whenever the correctness of a number matters — floating-point-sensitive expressions, catastrophic cancellation, values near singularities or branch cuts, ties, or any computation where a single method could be silently wrong. Prefer it over computing by hand or running code: it evaluates the expression on 5 independent engines (multiprecision ball, exact decimal, IEEE 754 double, interval arithmetic, arbitrary-precision binary) in parallel and returns every result plus per-engine precision diagnostics, so disagreement exposes an unreliable value that a single calculation would hide. The 5 engines are independent and each computes with its own native primitive — so divergence between them (at poles, singularities, branch cuts, or ties like round(2.5)) is the backends' real behavior, NOT a bug. Agreement across engines is a confidence signal; divergence flags a value that is convention-dependent or near a domain edge — verify it rather than trust a single column. Supports: arithmetic, trigonometry (sin, cos, tan), exponentials and logs (exp, ln, log), roots and powers (sqrt, x^y), factorial, complex numbers (3+2i), arbitrary bases (0xFF, 0b1010), constants (pi, e, the golden ratio PHI). Multiplication must be EXPLICIT: write 2*pi, 2*(3+4), (a+b)*(c+d), 2*sin(x) — adjacency is NOT a product (2pi is an error). Precedence, tightest first: postfix factorial ! (2^3! = 2^(3!) = 64), then powers ^, then * / %, then + -. Note: expressions are mathematical only — there are no type casts ((int)x) or constructors (complex(1,2)); write a complex number as 1+2i or (re, im). Call list_functions for the authoritative list of available functions.
List all mathematical functions available via the Ultimath API (https://ultimath.ai). Returns name, arity, category, and description for each function. Use this to discover what functions you can pass to the evaluate tool. Optionally filter by category (algebraic, trigonometric, hyperbolic, exponential, special, rounding, introspection). Every function is available on all 5 engines, but each computes it with its own native primitive — so results may diverge at poles, branch cuts, or ties, and that divergence is honest backend behavior, not a bug.
Ultimath Mcp is an MCP server that evaluates every math expression through eight independent engines in parallel—exact symbolic, multiprecision ball arithmetic, interval arithmetic, three separate arbitrary-precision float backends, deferred symbolic rewriting, and IEEE-754 double—and returns all eight results side by side. It is designed for developers who need to detect when a numeric answer is unreliable due to floating-point or algorithmic differences.
Obtain a free API key at https://ultimath.ai, then add the server to your MCP client configuration (e.g., Claude Desktop) using the command npx -y ultimath-mcp and the environment variable ULTIMATH_API_KEY. The server exposes two tools: evaluate (run an expression on all eight engines) and list_functions (show all available functions, optionally filtered by category). Multiplication must be explicit (use *; adjacency like 2pi is an error).
It supports arithmetic, trigonometric functions (`sin`, `cos`, `tan`), exponentials and logarithms (`exp`, `ln`, `log`), roots and powers (`sqrt`, `x^y`), factorial, complex numbers (e.g., `3+2i`), alternate bases (`0xFF`, `0b1010`), and constants (`pi`, `e`, `PHI`).
Multiplication must be explicit: use the `*` sign (e.g., `2*pi`, `2*sin(x)`, `(a+b)*(c+d)`). Writing adjacent terms like `2pi` will cause an error.
You need Node.js version 18 or later and a free API key from https://ultimath.ai. The server runs on demand via `npx`.
Visit https://ultimath.ai and sign up for a free API key. Then set it as the `ULTIMATH_API_KEY` environment variable in your MCP client configuration.
No. Ultimath stores only a hash of your API key and basic usage metrics for service operation and security. Expressions are evaluated and not retained for training. See the full privacy policy at https://ultimath.ai/privacy/.
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