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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "calculators": {
      "type": "http",
      "url": "https://monsitools.com/mcp",
      "headers": {
        "Authorization": "Bearer ${CALCULATORS_TOKEN}"
      }
    }
  }
}

claude mcp add --transport http calculators https://monsitools.com/mcp --header "Authorization: Bearer ${CALCULATORS_TOKEN}"

[mcp_servers.calculators]
url = "https://monsitools.com/mcp"
bearer_token_env_var = "CALCULATORS_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "calculators": {
      "type": "remote",
      "url": "https://monsitools.com/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:CALCULATORS_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "calculators": {
      "type": "http",
      "url": "https://monsitools.com/mcp",
      "headers": {
        "Authorization": "Bearer ${CALCULATORS_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=calculators&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbW9uc2l0b29scy5jb20vbWNwIiwiaGVhZGVycyI6eyJBdXRob3JpemF0aW9uIjoiQmVhcmVyICR7Q0FMQ1VMQVRPUlNfVE9LRU59In19"
}

{
  "servers": {
    "calculators": {
      "type": "http",
      "url": "https://monsitools.com/mcp",
      "headers": {
        "Authorization": "Bearer ${CALCULATORS_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "calculators": {
      "httpUrl": "https://monsitools.com/mcp",
      "headers": {
        "Authorization": "Bearer ${CALCULATORS_TOKEN}"
      }
    }
  }
}

extensions:
  "calculators":
    enabled: true
    name: "calculators"
    type: streamable_http
    uri: "https://monsitools.com/mcp"
    headers:
      "Authorization": "Bearer ${CALCULATORS_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${CALCULATORS_TOKEN}. The registry never accepts secret values.

Quality 85 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-06-18; 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 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.annotations3 of 3 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: calculate (destructiveHint, idempotentHint); search_calculators (destructiveHint, idempotentHint); describe_calculator (destructiveHint, idempotentHint)
pass
tools.token_costabout 406 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changes3 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

3 tools, about 406 tokens to load them all · tool set 2c3c64d7aa2a · tools last changed 2026-10-09 · checked 2026-10-20 10:03 UTC

Tool changes

2026-10-09calculatechangeddescription, annotations
before
Runs a MonsiTools calculator on the given inputs and returns the result. Needs a MonsiTools Premium API key, sent as 'Authorization: Bearer mt_live_...' when connecting.
after · 63% of words in common
Runs a MonsiTools calculator on the given inputs and returns the result. Works without a key for 10 calculations a day per IP address. A MonsiTools Premium API key, sent as 'Authorization: Bearer mt_live_...' when connecting, removes the daily limit.
2026-10-09describe_calculatorchangedannotations
2026-10-09search_calculatorschangedannotations

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 82 / 100

no-repository

provenance55

liveness99

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-99% +updated-17d-ago -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://monsitools.com/mcp` streamable-http	none	yes	99%	218 ms	2025-06-18	2026-10-20

Tools (3)

`calculate`read-only	Runs a MonsiTools calculator on the given inputs and returns the result. Works without a key for 10 calculations a day per IP address. A MonsiTools Premium API key, sent as 'Authorization: Bearer mt_live_...' when connecting, removes the daily limit.
`describe_calculator`read-only	Returns a calculator's name, category, formula, input names and page URL, given its slug.
`search_calculators`read-only	Find MonsiTools calculators by keyword (for example 'runway', 'break even', 'roas', 'loan payment'). Returns each match's slug, name, category and input names. Use describe_calculator for details, then calculate to run one.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.monsitools/calculators",
  "title": "MonsiTools Calculators",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://monsitools.com/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Bearer token with a MonsiTools Premium API key (mt_live_...). Needed only for the calculate tool; search and describe work without it."
        }
      ]
    }
  ],
  "version": "1.0.1",
  "websiteUrl": "https://monsitools.com/developers",
  "description": "Find and run exact business, finance and SaaS calculators instead of guessing the math."
}