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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

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

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "free-business-tools": {
      "type": "remote",
      "url": "https://www.sendpaybusiness.com/api/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "free-business-tools": {
      "type": "http",
      "url": "https://www.sendpaybusiness.com/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=free-business-tools&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vd3d3LnNlbmRwYXlidXNpbmVzcy5jb20vYXBpL21jcCJ9"
}

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

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

extensions:
  "free-business-tools":
    enabled: true
    name: "free-business-tools"
    type: streamable_http
    uri: "https://www.sendpaybusiness.com/api/mcp"
    timeout: 300

Quality 86 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 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 hygiene100 · 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.annotations21 of 21 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 3,097 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability75 · weight 15

warn
stability.changes6 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

21 tools, about 3,097 tokens to load them all · tool set 511bfbb69a01 · tools last changed 2026-10-27 · checked 2026-11-07 18:01 UTC

Tool changes

2026-10-27cbu_checkeradded
Check an Argentine CBU or CVU: 22 digits and both check digits, split into bank, branch and account.
2026-10-27uk_vat_number_checkeradded
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.
2026-10-27sedol_checkeradded
Check a 7-character SEDOL (UK/Irish security identifier) format and check digit.
2026-10-27cusip_checkeradded
Check a 9-character CUSIP (US/Canadian security identifier) check digit and split it into issuer and issue.
2026-10-27isin_checkeradded
Check that an ISIN (ISO 6166 security identifier) is well formed: country code, 9-character national code and Luhn check digit.
2026-10-27lei_checkeradded
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.

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-98% +updated-12d-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://www.sendpaybusiness.com/api/mcp` streamable-http	none	yes	98%	614 ms	2025-11-25	2026-11-07

Tools (21)

`break_even_calculator`read-only	How many sales a month cover fixed costs, from fixed monthly costs, price, cost per unit and payment fee percent.
`card_fee_calculator`read-only	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`read-only	Check an Argentine CBU or CVU: 22 digits and both check digits, split into bank, branch and account.
`compound_interest_calculator`read-only	Savings growth with monthly compounding and an optional monthly deposit: final balance, total paid in and interest earned.
`cusip_checker`read-only	Check a 9-character CUSIP (US/Canadian security identifier) check digit and split it into issuer and issue.
`discount_calculator`read-only	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`read-only	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.
`free_business_website`read-only	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`read-only	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`read-only	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`read-only	Check that an ISIN (ISO 6166 security identifier) is well formed: country code, 9-character national code and Luhn check digit.
`lei_checker`read-only	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`read-only	Monthly repayment, total repaid and total interest on a fixed-rate loan, from the amount, APR and term in months.
`mortgage_calculator`read-only	Monthly repayment mortgage payment, loan-to-value, total interest and interest-only payment from property price, deposit, rate and term.
`percentage_calculator`read-only	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`read-only	Profit, margin and markup from cost and selling price; or the selling price needed for a target margin.
`roi_calculator`read-only	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`read-only	Check a 7-character SEDOL (UK/Irish security identifier) format and check digit.
`swift_code_checker`read-only	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`read-only	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`read-only	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%.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.sendpaybusiness.app/free-business-tools",
  "icons": [
    {
      "src": "https://www.sendpaybusiness.com/icon-512.png",
      "sizes": [
        "512x512"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "SendPay free business calculators",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://www.sendpaybusiness.com/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://www.sendpaybusiness.com/tools",
  "description": "Free VAT, card fee, loan, mortgage, margin, ROI and break-even calculators plus IBAN/SWIFT checks"
}