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MCPcalc

@robrighter

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About MCPcalc

300+ calculators for AI agents via the Model Context Protocol. MCPCalc is a hosted MCP server that gives AI agents (Claude, ChatGPT, and others) access to a comprehensive library of calculators spanning finance, math, health, construction, engineering, food, automotive, and more

#calculators#cas#spreadsheet

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mcpcalc": {
      "url": "https://mcpcalc.com/api/v1/mcp"
    }
  }
}

Tools

10

List available calculators, optionally filtered by category

Get the input schema for a specific calculator

Run a calculation and get results + prefilled URL

Generate a prefilled URL without running calculation

Evaluate one or more headless CAS expressions server-side (MCP-only numeric mode). Unsupported expressions return a GUI handoff link.

Alias of calculate_cas. Headless MCP-only CAS evaluator; if unsupported features are requested, returns GUI handoff details.

Create a new interactive session for any calculator and return the session URL

Retrieve the current field values, computation transcript, and pending message queue for an active session

Push actions into a session's message queue (set fields, submit computation, trigger plot, etc.)

Close a session and optionally persist a snapshot of its final state

Overview

What is MCPCalc?

MCPCalc is a remote MCP server that provides AI agents access to a hosted computational platform with over 300 calculators, a Computer Algebra System (CAS), and a spreadsheet engine. There is nothing to install — AI agents connect directly to the hosted endpoint.

How to use MCPCalc?

Connect any MCP client (Claude Desktop, Cursor, etc.) by adding the URL https://mcpcalc.com/api/v1/mcp to the client configuration. No API key or authentication is required. For Claude.ai, search for "MCPCalc" in the MCP integrations menu. The agent usage guide is available at mcpcalc.com/api/v1/mcp/guide.

Key features of MCPCalc

  • 300+ form calculators across 15 categories (finance, math, health, construction, etc.)
  • Full Computer Algebra System (CAS) for symbolic algebra, calculus, and equation solving
  • Interactive spreadsheet engine with cell formulas, CSV import/export, and range operations
  • Session-based computation with state persistence and prefilled URL generation
  • Streamable HTTP transport — no local installation, API keys, or environment variables required

Use cases of MCPCalc

  • Run financial calculations (mortgage payments, compound interest, retirement planning)
  • Solve symbolic math problems (derivatives, integrals, equation solving)
  • Perform health and fitness computations (BMI, BMR, macronutrient targets)
  • Execute and share interactive spreadsheet calculations via MCP sessions

FAQ from MCPCalc

Do I need to install anything to use MCPCalc?

No. MCPCalc is a fully hosted service. AI agents connect directly via Streamable HTTP at https://mcpcalc.com/api/v1/mcp — no local installation is required.

Is an API key or authentication required?

No API key or authentication is required to connect to MCPCalc.

What types of tools does MCPCalc expose?

MCPCalc exposes tools to list calculators, get calculator schemas, run calculations, generate prefilled URLs, and manage interactive sessions (create, get state, push actions, close).

Can I do symbolic math with MCPCalc?

Yes. The cas calculator supports symbolic algebra, calculus (derivatives, integrals, limits), equation solving, interactive plotting, LaTeX input, and variable assignment.

Does MCPCalc have spreadsheet capabilities?

Yes. The spreadsheet calculator provides a grid-based environment with cell formulas, A1 range operations, CSV import/export, column formatting, and full session state access.

Frequently asked questions

Do I need to install anything to use MCPCalc?

No. MCPCalc is a fully hosted service. AI agents connect directly via Streamable HTTP at `https://mcpcalc.com/api/v1/mcp` — no local installation is required.

Is an API key or authentication required?

No API key or authentication is required to connect to MCPCalc.

What types of tools does MCPCalc expose?

MCPCalc exposes tools to list calculators, get calculator schemas, run calculations, generate prefilled URLs, and manage interactive sessions (create, get state, push actions, close).

Can I do symbolic math with MCPCalc?

Yes. The `cas` calculator supports symbolic algebra, calculus (derivatives, integrals, limits), equation solving, interactive plotting, LaTeX input, and variable assignment.

Does MCPCalc have spreadsheet capabilities?

Yes. The `spreadsheet` calculator provides a grid-based environment with cell formulas, A1 range operations, CSV import/export, column formatting, and full session state access.

Comments

Basic information

Category

AI & Agents

Transports

stdio

Author

robrighter

Submitted by

Rob Righter

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