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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

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

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "calculator": {
      "type": "remote",
      "url": "https://mcpcalc.com/api/v1/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "calculator": {
      "type": "http",
      "url": "https://mcpcalc.com/api/v1/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=calculator&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwY2FsYy5jb20vYXBpL3YxL21jcCJ9"
}

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

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

extensions:
  "calculator":
    enabled: true
    name: "calculator"
    type: streamable_http
    uri: "https://mcpcalc.com/api/v1/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-03-26; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: calculate (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); calculate_cas (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); close_session (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 2,067 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

10 tools, about 2,067 tokens to load them all · tool set dc69564a06cb · checked 2026-10-20 11:40 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 68 / 100

no-repository

provenance45

liveness98

freshness45

hygiene80

+dns-namespace +reachable +uptime-96% -stale-249d -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://mcpcalc.com/api/v1/mcp` streamable-http	none	yes	96%	925 ms	2025-03-26	2026-10-20

Tools (10)

`calculate`	Run a calculation and get results + prefilled URL
`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.
`close_session`	Close a session and optionally persist a snapshot of its final state
`create_session`	Create a new interactive session for any calculator and return the session URL
`generate_prefilled_url`	Generate a prefilled URL without running calculation
`get_calculator_schema`	Get the input schema for a specific calculator
`get_session_state`	Retrieve the current field values, computation transcript, and pending message queue for an active session
`list_calculators`	List available calculators, optionally filtered by category
`push_session_action`	Push actions into a session's message queue (set fields, submit computation, trigger plot, etc.)

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.mcpcalc/calculator",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcpcalc.com/api/v1/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.1.0",
  "repository": {},
  "description": "Calculators accessible via MCP with real-time collaborative sessions and shareable URLs."
}