Calcupedia
2,400+ calculators and unit converters with exact results and a live calculator card in the chat.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"calcupedia": {
"url": "https://calcupedia.io/api/mcp"
}
}
}Remote endpoints
https://calcupedia.io/api/mcpstreamable-httpWhat it can do
Tool inventory
Tools (4)
🟢search_calculators(query, limit)
Searches Calcupedia's 2,400+ calculators and unit converters by keyword (for example "mortgage", "bmi", "kg to lbs"). Returns matching calculators with their slug, category and page link; the top 3 also list their input keys, defaults and allowed values. Use it when the user wants a number worked out (a loan or mortgage payment, interest, savings, tax, salary, BMI, calories, a date or age, a percentage or a unit conversion) or asks for a calculator, then pass the slug to run_calculator.
Input Schema
{
"type": "object",
"properties": {
"query": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Keywords for the calculator or conversion needed."
},
"limit": {
"description": "Maximum results, 1-20. Default 10.",
"type": "integer",
"minimum": 1,
"maximum": 20
}
},
"required": [
"query"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢calculate(slug, values)
Recalculates a calculator card after the user changes a value. Used by the card itself, not by the assistant.
Input Schema
{
"type": "object",
"properties": {
"slug": {
"type": "string",
"minLength": 1,
"maxLength": 120
},
"values": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"anyOf": [
{
"type": "number"
},
{
"type": "string"
}
]
}
}
},
"required": [
"slug",
"values"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢run_calculator(slug, inputs)
Runs one Calcupedia calculator with its verified formulas. Returns every result, a link that opens the calculator with the same values, and the inputs it accepts with their current values. Use it for finance, health, math, date and unit-conversion questions that need exact figures the user can check. Input keys differ per calculator and are listed by search_calculators; omitted inputs use the calculator's defaults.
Input Schema
{
"type": "object",
"properties": {
"slug": {
"type": "string",
"minLength": 1,
"maxLength": 120,
"description": "Calculator slug from search_calculators, for example \"mortgage-calculator\"."
},
"inputs": {
"description": "Input values keyed by input key, for example {\"home_price\": 400000, \"interest_rate\": 6.5}.",
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"anyOf": [
{
"type": "number"
},
{
"type": "string"
}
]
}
}
},
"required": [
"slug"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢get_embed_link(slug)
Returns the link where a website owner can style a Calcupedia calculator and get the code to embed it on their own site (WordPress, Shopify, Webflow, Wix or plain HTML). Customizing needs no account; creating the embed needs a free Calcupedia account. Use it when someone wants a calculator on their website, blog or online store.
Input Schema
{
"type": "object",
"properties": {
"slug": {
"type": "string",
"minLength": 1,
"maxLength": 120,
"description": "Calculator slug from search_calculators, for example \"mortgage-calculator\"."
}
},
"required": [
"slug"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}Community
Evidence