MCP MeasureMCP Measure

インデックス観測済み

SendPay free business calculators

Free VAT, card fee, loan, mortgage, margin, ROI and break-even calculators plus IBAN/SWIFT checks

使うべきか

品質と安全性

A
説明の品質
89%
スキーマの完全性
100%
命名の品質
81%
ポイズニングのリスク
100%
権限の一致
80%
プロトコルへの準拠
100%

検出事項（7）

  • LOWTool 'roi_calculator' description lacks action verbroi_calculator 内
  • LOWTool 'compound_interest_calculator' description lacks action verbcompound_interest_calculator 内
  • LOWTool 'loan_repayment_calculator' description lacks action verbloan_repayment_calculator 内
  • LOWTool 'mortgage_calculator' description lacks action verbmortgage_calculator 内
  • LOWTool 'break_even_calculator' description lacks action verbbreak_even_calculator 内
  • LOWTool 'hourly_rate_calculator' suggests web access but openWorldHint=falsehourly_rate_calculator 内
  • LOWTool 'free_business_website' suggests web access but openWorldHint=falsefree_business_website 内

ツール定義とプロトコルへの準拠に関する自動分析に基づいています。

コンテキストコスト

~3,230トークン数（ツール定義）
~931 B一般的なレスポンスサイズ
注意への影響は大きい（128k コンテキストの 2.52%）

これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。

インストール

ワンクリックインストール

これを `claude_desktop_config.json` ファイルに追加してください:

{
  "mcpServers": {
    "free-business-tools": {
      "url": "https://www.sendpaybusiness.com/api/mcp"
    }
  }
}

リモートエンドポイント

https://www.sendpaybusiness.com/api/mcpstreamable-http

できること

ツール一覧

ツール（21）

🟢 読み取り専用🟡 書き込み🔴 削除⚪ 不明
🟢find_free_tool(query)

Search SendPay Business's library of 170+ free calculators, checkers and generators for small businesses, freelancers, banking, FX, trading and crypto (invoice generator, VAT, card fees, loan, mortgage, IBAN, SWIFT, forex, bitcoin and more). Returns matching tools with links. Use it when the user needs a calculator or tool that is not offered directly here.

入力スキーマ

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "What the user wants to work out or make, e.g. 'invoice', 'forex pip value', 'chargeback'."
    }
  },
  "required": [
    "query"
  ],
  "additionalProperties": false
}
🟢vat_calculator(amount, rate, mode)

Add VAT to a net price, or remove VAT from a gross (VAT-inclusive) price, at any rate. UK standard rate is 20%, reduced 5%.

入力スキーマ

{
  "type": "object",
  "properties": {
    "amount": {
      "type": "number",
      "description": "The price.",
      "minimum": 0
    },
    "rate": {
      "type": "number",
      "description": "VAT rate in percent. Default 20.",
      "minimum": 0,
      "maximum": 100
    },
    "mode": {
      "type": "string",
      "enum": [
        "add",
        "remove"
      ],
      "description": "'add' if the amount excludes VAT, 'remove' if it already includes VAT. Default 'add'."
    }
  },
  "required": [
    "amount"
  ],
  "additionalProperties": false
}
🟢card_fee_calculator(amount, percent_fee, fixed_fee, payments_per_month)

Work out the fee on a card payment (percentage plus fixed fee), what you keep, and what to charge to receive the full amount after fees.

入力スキーマ

{
  "type": "object",
  "properties": {
    "amount": {
      "type": "number",
      "description": "Payment amount.",
      "minimum": 0
    },
    "percent_fee": {
      "type": "number",
      "description": "Percentage fee, e.g. 2.9 for 2.9%. Default 2.9.",
      "minimum": 0,
      "maximum": 99
    },
    "fixed_fee": {
      "type": "number",
      "description": "Fixed fee per payment, e.g. 0.30. Default 0.30.",
      "minimum": 0
    },
    "payments_per_month": {
      "type": "number",
      "description": "Optional: payments a month, to total the fees. Default 0.",
      "minimum": 0
    }
  },
  "required": [
    "amount"
  ],
  "additionalProperties": false
}
🟢profit_margin_calculator(cost, price, target_margin_percent)

Profit, margin and markup from cost and selling price; or the selling price needed for a target margin.

入力スキーマ

{
  "type": "object",
  "properties": {
    "cost": {
      "type": "number",
      "description": "Cost of the item.",
      "minimum": 0
    },
    "price": {
      "type": "number",
      "description": "Selling price. Give this or target_margin_percent.",
      "minimum": 0
    },
    "target_margin_percent": {
      "type": "number",
      "description": "Wanted margin in percent, to work out the price.",
      "minimum": 0,
      "maximum": 99.99
    }
  },
  "required": [
    "cost"
  ],
  "additionalProperties": false
}
🟢percentage_calculator(mode, x, y)

Three sums: X% of Y ('percent_of'), what percent X is of Y ('what_percent'), and percentage change from X to Y ('change').

入力スキーマ

{
  "type": "object",
  "properties": {
    "mode": {
      "type": "string",
      "enum": [
        "percent_of",
        "what_percent",
        "change"
      ],
      "description": "Which sum."
    },
    "x": {
      "type": "number",
      "description": "percent_of: the percent. what_percent: the part. change: the old value."
    },
    "y": {
      "type": "number",
      "description": "percent_of: the number. what_percent: the whole. change: the new value."
    }
  },
  "required": [
    "mode",
    "x",
    "y"
  ],
  "additionalProperties": false
}
🟢discount_calculator(price, discount_percent, unit_cost, units)

Sale price after a percentage discount and, given unit cost and units normally sold, how many extra sales the discount needs to keep the same profit.

入力スキーマ

{
  "type": "object",
  "properties": {
    "price": {
      "type": "number",
      "description": "Normal price.",
      "minimum": 0
    },
    "discount_percent": {
      "type": "number",
      "description": "Discount in percent.",
      "minimum": 0,
      "maximum": 100
    },
    "unit_cost": {
      "type": "number",
      "description": "Optional: what one unit costs you.",
      "minimum": 0
    },
    "units": {
      "type": "number",
      "description": "Optional: units sold at the normal price.",
      "minimum": 0
    }
  },
  "required": [
    "price",
    "discount_percent"
  ],
  "additionalProperties": false
}
🟢roi_calculator(cost, returned, months)

Return on investment: profit and ROI % from the amount put in and the amount got back, and the yearly rate if the time in months is given.

入力スキーマ

{
  "type": "object",
  "properties": {
    "cost": {
      "type": "number",
      "description": "Amount invested.",
      "minimum": 0
    },
    "returned": {
      "type": "number",
      "description": "Amount got back in total."
    },
    "months": {
      "type": "number",
      "description": "Optional: how many months it took.",
      "minimum": 0
    }
  },
  "required": [
    "cost",
    "returned"
  ],
  "additionalProperties": false
}
🟢compound_interest_calculator(starting_amount, monthly_deposit, annual_rate_percent, years)

Savings growth with monthly compounding and an optional monthly deposit: final balance, total paid in and interest earned.

入力スキーマ

{
  "type": "object",
  "properties": {
    "starting_amount": {
      "type": "number",
      "description": "Money at the start.",
      "minimum": 0
    },
    "monthly_deposit": {
      "type": "number",
      "description": "Added each month. Default 0.",
      "minimum": 0
    },
    "annual_rate_percent": {
      "type": "number",
      "description": "Yearly interest rate in percent.",
      "minimum": 0,
      "maximum": 100
    },
    "years": {
      "type": "integer",
      "description": "Number of years (up to 60).",
      "minimum": 0,
      "maximum": 60
    }
  },
  "required": [
    "starting_amount",
    "annual_rate_percent",
    "years"
  ],
  "additionalProperties": false
}
🟢loan_repayment_calculator(amount, apr_percent, months)

Monthly repayment, total repaid and total interest on a fixed-rate loan, from the amount, APR and term in months.

入力スキーマ

{
  "type": "object",
  "properties": {
    "amount": {
      "type": "number",
      "description": "Amount borrowed.",
      "minimum": 0
    },
    "apr_percent": {
      "type": "number",
      "description": "APR in percent.",
      "minimum": 0,
      "maximum": 1000
    },
    "months": {
      "type": "integer",
      "description": "Term in months.",
      "minimum": 1,
      "maximum": 600
    }
  },
  "required": [
    "amount",
    "apr_percent",
    "months"
  ],
  "additionalProperties": false
}
🟢mortgage_calculator(price, deposit, annual_rate_percent, years)

Monthly repayment mortgage payment, loan-to-value, total interest and interest-only payment from property price, deposit, rate and term.

入力スキーマ

{
  "type": "object",
  "properties": {
    "price": {
      "type": "number",
      "description": "Property price.",
      "minimum": 0
    },
    "deposit": {
      "type": "number",
      "description": "Deposit.",
      "minimum": 0
    },
    "annual_rate_percent": {
      "type": "number",
      "description": "Mortgage interest rate in percent.",
      "minimum": 0,
      "maximum": 100
    },
    "years": {
      "type": "number",
      "description": "Term in years.",
      "minimum": 1,
      "maximum": 50
    }
  },
  "required": [
    "price",
    "deposit",
    "annual_rate_percent",
    "years"
  ],
  "additionalProperties": false
}
🟢hourly_rate_calculator(target_income, yearly_costs, weeks_off, billable_hours_per_week, hours_per_day)

What a freelancer or sole trader should charge per hour and per day to reach a target yearly income after business costs and time off.

入力スキーマ

{
  "type": "object",
  "properties": {
    "target_income": {
      "type": "number",
      "description": "Yearly income wanted.",
      "minimum": 0
    },
    "yearly_costs": {
      "type": "number",
      "description": "Yearly business costs. Default 0.",
      "minimum": 0
    },
    "weeks_off": {
      "type": "number",
      "description": "Weeks off a year (holidays, sickness). Default 6.",
      "minimum": 0,
      "maximum": 52
    },
    "billable_hours_per_week": {
      "type": "number",
      "description": "Hours billed to clients per week. Default 25.",
      "minimum": 0,
      "maximum": 168
    },
    "hours_per_day": {
      "type": "number",
      "description": "Hours in a working day, for the day rate. Default 7.",
      "minimum": 0,
      "maximum": 24
    }
  },
  "required": [
    "target_income"
  ],
  "additionalProperties": false
}
🟢break_even_calculator(fixed_costs, price, unit_cost, payment_fee_percent)

How many sales a month cover fixed costs, from fixed monthly costs, price, cost per unit and payment fee percent.

入力スキーマ

{
  "type": "object",
  "properties": {
    "fixed_costs": {
      "type": "number",
      "description": "Fixed costs per month.",
      "minimum": 0
    },
    "price": {
      "type": "number",
      "description": "Selling price per unit.",
      "minimum": 0
    },
    "unit_cost": {
      "type": "number",
      "description": "Cost per unit.",
      "minimum": 0
    },
    "payment_fee_percent": {
      "type": "number",
      "description": "Payment fee in percent of the price. Default 0.",
      "minimum": 0,
      "maximum": 100
    }
  },
  "required": [
    "fixed_costs",
    "price",
    "unit_cost"
  ],
  "additionalProperties": false
}
🟢iban_checker(iban)

Check that an IBAN is well formed: country length and mod-97 check digits. Does not confirm that the account exists or who owns it.

入力スキーマ

{
  "type": "object",
  "properties": {
    "iban": {
      "type": "string",
      "description": "The IBAN, spaces allowed."
    }
  },
  "required": [
    "iban"
  ],
  "additionalProperties": false
}
🟢swift_code_checker(code)

Check that a SWIFT (BIC) code is well formed and split it into bank, country, location and branch. Has no bank directory.

入力スキーマ

{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "description": "SWIFT/BIC code, 8 or 11 characters."
    }
  },
  "required": [
    "code"
  ],
  "additionalProperties": false
}
🟢free_business_website(business_type)

Use when the user wants a website for their business, shop or side hustle. SendPay Business offers a free business website builder: free to build, publish and keep, no card needed, with an optional shop cart and card payments later. Returns the link to start.

入力スキーマ

{
  "type": "object",
  "properties": {
    "business_type": {
      "type": "string",
      "description": "Optional: what the business does, e.g. 'bakery'."
    }
  },
  "additionalProperties": false
}
🟢lei_checker(lei)

Check that a Legal Entity Identifier (LEI, ISO 17442) is well formed: 20 characters and MOD 97-10 check digits. Does not confirm the LEI is registered; GLEIF's search does.

入力スキーマ

{
  "type": "object",
  "properties": {
    "lei": {
      "type": "string",
      "description": "The LEI, 20 characters."
    }
  },
  "required": [
    "lei"
  ],
  "additionalProperties": false
}
🟢isin_checker(isin)

Check that an ISIN (ISO 6166 security identifier) is well formed: country code, 9-character national code and Luhn check digit.

入力スキーマ

{
  "type": "object",
  "properties": {
    "isin": {
      "type": "string",
      "description": "The ISIN, 12 characters."
    }
  },
  "required": [
    "isin"
  ],
  "additionalProperties": false
}
🟢cusip_checker(cusip)

Check a 9-character CUSIP (US/Canadian security identifier) check digit and split it into issuer and issue.

入力スキーマ

{
  "type": "object",
  "properties": {
    "cusip": {
      "type": "string",
      "description": "The CUSIP, 9 characters."
    }
  },
  "required": [
    "cusip"
  ],
  "additionalProperties": false
}
🟢sedol_checker(sedol)

Check a 7-character SEDOL (UK/Irish security identifier) format and check digit.

入力スキーマ

{
  "type": "object",
  "properties": {
    "sedol": {
      "type": "string",
      "description": "The SEDOL, 7 characters."
    }
  },
  "required": [
    "sedol"
  ],
  "additionalProperties": false
}
🟢uk_vat_number_checker(vat_number)

Check a UK VAT number's format and check digits (9 digits, 12 with a branch, or GD/HA). Does not confirm registration; HMRC's service does.

入力スキーマ

{
  "type": "object",
  "properties": {
    "vat_number": {
      "type": "string",
      "description": "The VAT number, with or without GB."
    }
  },
  "required": [
    "vat_number"
  ],
  "additionalProperties": false
}
🟢cbu_checker(cbu)

Check an Argentine CBU or CVU: 22 digits and both check digits, split into bank, branch and account.

入力スキーマ

{
  "type": "object",
  "properties": {
    "cbu": {
      "type": "string",
      "description": "The CBU or CVU, 22 digits."
    }
  },
  "required": [
    "cbu"
  ],
  "additionalProperties": false
}

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