MCP server

SendPay free business calculators

com.sendpaybusiness.app/free-business-tools

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

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

Website

At a glance

Type

MCP server

Publisher

sendpaybusiness.com (verified by the MCP Registry)

Status

Working at last check

Tools

21

Token cost

About 3,094 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

28 Oct 2026, 09:03 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http free-business-tools https://www.sendpaybusiness.com/api/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.free-business-tools]
url = "https://www.sendpaybusiness.com/api/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"free-business-tools":{"type":"http","url":"https://www.sendpaybusiness.com/api/mcp"}}}

Antigravity

agy mcp add free-business-tools https://www.sendpaybusiness.com/api/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"free-business-tools","server_url":"https://www.sendpaybusiness.com/api/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"free-business-tools","server_url":"https://www.sendpaybusiness.com/api/mcp"}

Tools

• break_even_calculator ~186 tokens
  How many sales a month cover fixed costs, from fixed monthly costs, price, cost per unit and payment fee percent.
• card_fee_calculator ~202 tokens
  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.
• cbu_checker ~87 tokens
  Check an Argentine CBU or CVU: 22 digits and both check digits, split into bank, branch and account.
• compound_interest_calculator ~202 tokens
  Savings growth with monthly compounding and an optional monthly deposit: final balance, total paid in and interest earned.
• cusip_checker ~90 tokens
  Check a 9-character CUSIP (US/Canadian security identifier) check digit and split it into issuer and issue.
• discount_calculator ~192 tokens
  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.
• find_free_tool ~181 tokens
  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 ne
• free_business_website ~139 tokens
  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.
• hourly_rate_calculator ~243 tokens
  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.
• iban_checker ~96 tokens
  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.
• isin_checker ~95 tokens
  Check that an ISIN (ISO 6166 security identifier) is well formed: country code, 9-character national code and Luhn check digit.
• lei_checker ~106 tokens
  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.
• loan_repayment_calculator ~154 tokens
  Monthly repayment, total repaid and total interest on a fixed-rate loan, from the amount, APR and term in months.
• mortgage_calculator ~188 tokens
  Monthly repayment mortgage payment, loan-to-value, total interest and interest-only payment from property price, deposit, rate and term.
• percentage_calculator ~170 tokens
  Three sums: X% of Y ('percent_of'), what percent X is of Y ('what_percent'), and percentage change from X to Y ('change').
• profit_margin_calculator ~161 tokens
  Profit, margin and markup from cost and selling price; or the selling price needed for a target margin.
• roi_calculator ~149 tokens
  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.
• sedol_checker ~82 tokens
  Check a 7-character SEDOL (UK/Irish security identifier) format and check digit.
• swift_code_checker ~98 tokens
  Check that a SWIFT (BIC) code is well formed and split it into bank, country, location and branch. Has no bank directory.
• uk_vat_number_checker ~107 tokens
  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.
• vat_calculator ~166 tokens
  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%.

Browse

• Payments
• Invoicing and accounting
• Legal research
• Crypto and blockchains

Related MCP servers

• TidyData Tools
  Holidays, business days, currency, time zones, DNS/WHOIS, web page checks, geodata and text tools.
• RealityCents — Hawaii Mortgage & VA Loan Calculators
  Read-only Hawaii mortgage and VA loan calculators from RealityCents.com. No personal data collected.
• CalcBright Calculators
  160+ calculators: take-home pay for 166 countries, mortgage, loan, VAT, BMI, dates, units, currency.
• SmartFin
  Backtest S&P 500 stocks and ETFs on real prices, plus loan, savings, FIRE and retirement tools.
• EveryCalc
  69 free finance, military, school and everyday calculators as MCP tools.
• Calcfleet Calculators
  Tested financial & practical calculators as free, no-auth MCP tools for AI agents.
• Calcupedia
  2,400+ calculators and unit converters with exact results and a live calculator card in the chat.
• Amortiza Loan Planner
  Mortgage & loan schedules

Badge for your README

[![AptLynx](https://aptlynx.net/badge/com.sendpaybusiness.app/free-business-tools.svg)](https://aptlynx.net/servers/com.sendpaybusiness.app/free-business-tools)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents