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MCPCalc MCP server

Which servers in the official MCP registry are MCPCalc's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-09

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Whose server it is
  • Registry namecom.mcpcalc/calculatorverified in the MCP registry

The registry name sits under mcpcalc.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-09
  • Stateanswerschecked 2026-10-09
  • Tools10
  • Server calls itselfmcpcalc-mcp
  • Server version1.0.0
  • Protocol version2025-03-26

On 2026-10-09 the server answered initialize and tools/list without a sign-in. First answer in 117 ms.

Tools it offers10 tools · read 2026-10-09
  • list_calculators

    List available calculators, optionally filtered by category

  • get_calculator_schema

    Get the input schema for a specific calculator

  • calculate

    Run a calculation and get results + prefilled URL

  • generate_prefilled_url

    Generate a prefilled URL without running calculation

  • calculate_cas

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

  • calculate_cas_headless

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

  • create_session

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

  • get_session_state

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

  • push_session_action

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

  • close_session

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

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "calculator": {
      "type": "http",
      "url": "https://mcpcalc.com/api/v1/mcp"
    }
  }
}

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.