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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "calculator-mcp-server": {
      "type": "http",
      "url": "https://calculator.caseyjhand.com/mcp"
    }
  }
}

claude mcp add --transport http calculator-mcp-server https://calculator.caseyjhand.com/mcp

[mcp_servers.calculator-mcp-server]
url = "https://calculator.caseyjhand.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "calculator-mcp-server": {
      "type": "remote",
      "url": "https://calculator.caseyjhand.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "calculator-mcp-server": {
      "type": "http",
      "url": "https://calculator.caseyjhand.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=calculator-mcp-server&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY2FsY3VsYXRvci5jYXNleWpoYW5kLmNvbS9tY3AifQ%3D%3D"
}

{
  "servers": {
    "calculator-mcp-server": {
      "type": "http",
      "url": "https://calculator.caseyjhand.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "calculator-mcp-server": {
      "httpUrl": "https://calculator.caseyjhand.com/mcp"
    }
  }
}

extensions:
  "calculator-mcp-server":
    enabled: true
    name: "calculator-mcp-server"
    type: streamable_http
    uri: "https://calculator.caseyjhand.com/mcp"
    timeout: 300

Quality 89 / 100good

protocol88 · weight 25

pass
protocol.modernsupports 2026-07-28 (server/discover)
pass
protocol.statelessanswers without a session
pass
protocol.transportstreamable HTTP
warn
protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use

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 hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations1 of 1 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: calculate (destructiveHint)
pass
tools.token_costabout 1,094 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changes1 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.resolvabledeps.dev does not know @cyanheads/[email protected], @cyanheads/[email protected]

1 tools, about 1,094 tokens to load them all · tool set d4eacf02e072 · tools last changed 2026-09-25 · checked 2026-10-20 13:17 UTC

Tool changes

2026-09-25calculatechangedinput schema, output schema

Full history: list_changes · trend: quality JSON.

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 94 / 100

provenance80

liveness99

freshness100

hygiene100

+repository +namespace-matches-repo +reachable +uptime-98% +updated-12d-ago

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

Dependencies

@cyanheads/[email protected] npmthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://calculator.caseyjhand.com/mcp` streamable-http	none	yes	98%	166 ms	2026-07-28	2026-10-20

package	registry	version	runtime	secrets
`@cyanheads/calculator-mcp-server`	npm	0.5.1	npx
`@cyanheads/calculator-mcp-server`	npm	0.5.1	npx

Tools (1)

calculateread-only Evaluate math expressions, simplify algebraic expressions, or compute symbolic derivatives. One expression per call. Supports arithmetic, trigonometry, statistics, matrices, complex numbers, units, and combinatorics.

Schemas: list_tools.

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Official server.json

{
  "name": "io.github.cyanheads/calculator-mcp-server",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://calculator.caseyjhand.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.5.1",
  "packages": [
    {
      "version": "0.5.1",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@cyanheads/calculator-mcp-server",
      "runtimeHint": "npx",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "CALC_MAX_EXPRESSION_LENGTH",
          "format": "string",
          "default": "1000",
          "description": "Maximum allowed expression string length."
        },
        {
          "name": "CALC_EVALUATION_TIMEOUT_MS",
          "format": "string",
          "default": "5000",
          "description": "Maximum evaluation time in milliseconds."
        },
        {
          "name": "CALC_MAX_RESULT_LENGTH",
          "format": "string",
          "default": "100000",
          "description": "Maximum result string length in characters."
        },
        {
          "name": "MCP_LOG_LEVEL",
          "format": "string",
          "default": "info",
          "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warning')."
        }
      ]
    },
    {
      "version": "0.5.1",
      "transport": {
        "url": "http://localhost:3010/mcp",
        "type": "streamable-http"
      },
      "identifier": "@cyanheads/calculator-mcp-server",
      "runtimeHint": "npx",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "MCP_TRANSPORT_TYPE",
          "value": "http",
          "format": "string",
          "description": "Selects the HTTP transport."
        },
        {
          "name": "CALC_MAX_EXPRESSION_LENGTH",
          "format": "string",
          "default": "1000",
          "description": "Maximum allowed expression string length."
        },
        {
          "name": "CALC_EVALUATION_TIMEOUT_MS",
          "format": "string",
          "default": "5000",
          "description": "Maximum evaluation time in milliseconds."
        },
        {
          "name": "CALC_MAX_RESULT_LENGTH",
          "format": "string",
          "default": "100000",
          "description": "Maximum result string length in characters."
        },
        {
          "name": "MCP_HTTP_HOST",
          "format": "string",
          "default": "127.0.0.1",
          "description": "The hostname for the HTTP server."
        },
        {
          "name": "MCP_HTTP_PORT",
          "format": "string",
          "default": "3010",
          "description": "The port to run the HTTP server on."
        },
        {
          "name": "MCP_HTTP_ENDPOINT_PATH",
          "format": "string",
          "default": "/mcp",
          "description": "The endpoint path for the MCP server."
        },
        {
          "name": "MCP_AUTH_MODE",
          "format": "string",
          "default": "none",
          "description": "Authentication mode to use: 'none', 'jwt', or 'oauth'."
        },
        {
          "name": "MCP_LOG_LEVEL",
          "format": "string",
          "default": "info",
          "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warning')."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/cyanheads/calculator-mcp-server",
    "source": "github"
  },
  "description": "Evaluate, simplify, and differentiate mathematical expressions."
}