MCP server

Mcpcalc Calculator Official

com.mcpcalc/calculator

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Calculators accessible via MCP with real-time collaborative sessions and shareable URLs.

At a glance

Type

MCP server

Publisher

mcpcalc.com (verified by the MCP Registry)

Status

Working at last check

Tools

10

Token cost

About 2,480 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http calculator https://mcpcalc.com/api/v1/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.calculator]
url = "https://mcpcalc.com/api/v1/mcp"

Gemini CLI

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

Cursor

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

VS Code

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

Antigravity

agy mcp add calculator https://mcpcalc.com/api/v1/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"calculator","server_url":"https://mcpcalc.com/api/v1/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"calculator","server_url":"https://mcpcalc.com/api/v1/mcp"}

Tools

• calculate ~119 tokens
  Run a calculation and get results + prefilled URL
• calculate_cas ~177 tokens
  Evaluate one or more headless CAS expressions server-side (MCP-only numeric mode). Unsupported expressions return a GUI handoff link.
• calculate_cas_headless ~177 tokens
  Alias of calculate_cas. Headless MCP-only CAS evaluator; if unsupported features are requested, returns GUI handoff details.
• close_session ~70 tokens
  Close a session and optionally persist a snapshot of its final state
• create_session ~94 tokens
  Create a new interactive session for any calculator and return the session URL
• generate_prefilled_url ~123 tokens
  Generate a prefilled URL without running calculation
• get_calculator_schema ~67 tokens
  Get the input schema for a specific calculator
• get_session_state ~82 tokens
  Retrieve the current field values, computation transcript, and pending message queue for an active session
• list_calculators ~69 tokens
  List available calculators, optionally filtered by category
• push_session_action ~1502 tokens
  Push actions into a session's message queue (set fields, submit computation, trigger plot, etc.)

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