← MCP Reliability Index / Web & Scraping

Calculator

com.mcpcalc/calculator

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

healthy

status

tools exposed

4594ms

connect latency

fd85dffb3f3f

schema fingerprint

Tools (10)

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

Endpoint

https://mcpcalc.com/api/v1/mcp
Category: Web & Scraping · Last checked: 2026-08-15T09:09:55Z

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How we measure →

What this means. This server responded to the MCP handshake and listed its tools without authentication. The schema fingerprint lets us flag if tool signatures silently change (schema drift) between checks.