MCP Calculator
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
| logging | {} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| extensions | {
"io.modelcontextprotocol/ui": {}
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| basic_mathA | Perform basic mathematical operations (add, subtract, multiply, divide). Uses high-precision decimal arithmetic and rounds the result to |
| advanced_mathA | Perform advanced mathematical functions (trigonometry, logarithms, etc.). Trig functions accept |
| expression_evalA | Evaluate mathematical expressions with variable substitution. Supports +, -, *, /, %, ^ (power), parentheses, comparison/logical operators, the constants pi/e (and PI/E), and the functions sin, cos, tan, asin, acos, atan, log (base 10), ln, sqrt, pow, abs, exp, factorial. Variable names must start with a letter and may not collide with reserved names. |
| statistics_analysisA | Perform statistical analysis on data sets. Standard deviation and variance use the sample estimator (n-1). The
|
| unit_conversionC | Convert between different units of measurement. Categories and units — length: mm, cm, m, km, in, ft, yd, mi, mil, μm, nm; weight: mg, g, kg, t, oz, lb, st, ton; temperature: C, F, K, R; volume: ml, cl, dl, l, kl, fl_oz, cup, pt, qt, gal, tsp, tbsp, bbl; area: mm2, cm2, m2, km2, in2, ft2, yd2, mi2, acre, ha. |
| financial_calcA | Perform financial calculations (interest, loans, ROI). Rates are percentages. |
| stats_summaryA | Get comprehensive statistical summary of a dataset. Returns count, mean, median, standard deviation, variance, range, min, max and the 25/50/75th percentiles in a single call. |
| percentileC | Calculate a specific percentile (0-100) of a dataset. |
| batch_conversionB | Convert multiple values between units in a single call. |
| npvB | Calculate Net Present Value of a series of cash flows. |
| irrB | Calculate Internal Rate of Return of cash flows (Newton-Raphson). |
| loan_comparisonA | Compare multiple loan options and identify the lowest monthly payment. Each loan object accepts the same fields as |
| investment_scenariosA | Compare multiple investment scenarios and identify the highest return. Each scenario defaults to |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 13 tools
Statistics has three overlapping tools (statistics_analysis, stats_summary, percentile) which could confuse an agent. Financial_calc overlaps with loan_comparison and investment_scenarios, though the comparative tools are distinct. Other tools are clearly separated.
Most tools use noun_noun or adjective_noun patterns, but npv and irr are acronyms that break the pattern. expression_eval is verb-last while others are noun-first. Still readable but not fully consistent.
With 13 tools, the server covers math, statistics, conversions, and finance without exceeding a manageable count. Each tool has a clear domain, though some redundancy exists in stats.
The server covers basic and advanced math, expression evaluation, statistics, unit conversions, and financial calculations, including comparative tools. Missing features like complex numbers or regression analysis are minor for a calculator.