UK Business Calendar MCP

Provides UK working day calculations, bank holidays, invoice due dates, payroll days, and HMRC/Companies House deadlines for AI agents. Includes news and facts search capabilities via GDELT, Hacker News, and Wikipedia.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Community listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by Donnie Morrison

MCP endpoint (Streamable HTTP)

https://uk-business-calendar-mcp.donniertf.workers.dev/mcp

Vendor documentation

What you can do with it

Count UK working days between two dates excluding weekends and bank holidays
Calculate invoice or contract due dates with Late Payment Act defaults
Retrieve upcoming HMRC and Companies House tax and filing deadlines
Search for company news, facts, and background information

Source and maintenance

Community listingRegistry 1.1.0

mcp-registry: io.github.donniertf-hub/uk-business-calendar-mcp@1.1.0 Source repository Project website

Maintenance checked: Nov 1, 2026, 8:44 AM UTC

Protocol and capabilities

Server: uk-business-calendar-mcp 1.1.0
MCP protocol: 2025-06-18
Tools: 10 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

UK Business Calendar. next_bank_holidays is free. Subscribe (£9/month, cancel anytime) at https://uk-business-calendar-mcp.donniertf.workers.dev/buy for the paid tools, then pass access_token.

Tools

10 advertised

next_bank_holidays

Advertised by the server during the last successful anonymous check.

FREE. Next 3 UK bank holidays for a nation, plus whether today is a working day.

next_bank_holidays input schema

{
  "type": "object",
  "properties": {
    "region": {
      "type": "string",
      "description": "england (default), wales, scotland, northern-ireland"
    }
  }
}

working_days

Advertised by the server during the last successful anonymous check.

PRO. Count UK working days between two dates (excludes weekends + bank holidays for the nation).

working_days input schema

{
  "type": "object",
  "required": [
    "from",
    "to"
  ],
  "properties": {
    "to": {
      "type": "string"
    },
    "from": {
      "type": "string"
    },
    "region": {
      "type": "string",
      "description": "england (default), wales, scotland, northern-ireland"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

due_date

Advertised by the server during the last successful anonymous check.

PRO. Invoice/contract due date: add N working days or N calendar days (rolled to next working day) to a date. Includes Late Payment Act 30-day default.

due_date input schema

{
  "type": "object",
  "required": [
    "days"
  ],
  "properties": {
    "days": {
      "type": "number"
    },
    "from": {
      "type": "string"
    },
    "region": {
      "type": "string",
      "description": "england (default), wales, scotland, northern-ireland"
    },
    "working": {
      "type": "boolean"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

tax_deadlines

Advertised by the server during the last successful anonymous check.

PRO. Upcoming HMRC and Companies House deadlines for the next N months; add company_year_end for Corporation Tax, CT600 and accounts dates.

tax_deadlines input schema

{
  "type": "object",
  "properties": {
    "months": {
      "type": "number"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    },
    "company_year_end": {
      "type": "string",
      "description": "YYYY-MM-DD"
    }
  }
}

month_planner

Advertised by the server during the last successful anonymous check.

PRO. For a month: working days count, bank holidays, payday suggestions (last working day / 25th rolled back) and deadlines.

month_planner input schema

{
  "type": "object",
  "required": [
    "month"
  ],
  "properties": {
    "month": {
      "type": "string",
      "description": "YYYY-MM"
    },
    "region": {
      "type": "string",
      "description": "england (default), wales, scotland, northern-ireland"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

news_quick

Advertised by the server during the last successful anonymous check.

FREE. Quick news & facts lookup for a topic: top Wikipedia matches (with summary) and top Hacker News stories from the last 30 days. No key.

news_quick input schema

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string"
    }
  }
}

news_search

Advertised by the server during the last successful anonymous check.

PRO ($0.01). Search worldwide online news (GDELT DOC 2.0, 65+ languages) for a topic: latest articles with headline, URL, outlet domain, time seen and source country. Options: days (1-90, default 7), uk_only, lang (e.g. english), max (≤50).

news_search input schema

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "max": {
      "type": "number"
    },
    "days": {
      "type": "number"
    },
    "lang": {
      "type": "string"
    },
    "query": {
      "type": "string"
    },
    "uk_only": {
      "type": "boolean"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

tech_news_search

Advertised by the server during the last successful anonymous check.

PRO ($0.01). Search Hacker News stories (via Algolia) for a company, product or topic: title, link, points, comments. Options: days (default 30), min_points, sort ('relevance' or 'recent'), max (≤30).

tech_news_search input schema

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "max": {
      "type": "number"
    },
    "days": {
      "type": "number"
    },
    "sort": {
      "type": "string"
    },
    "query": {
      "type": "string"
    },
    "min_points": {
      "type": "number"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

facts_search

Advertised by the server during the last successful anonymous check.

PRO ($0.01). Wikipedia search for background facts: up to 10 matching articles with snippets, and summaries for the top 3.

facts_search input schema

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "max": {
      "type": "number"
    },
    "query": {
      "type": "string"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

news_briefing

Advertised by the server during the last successful anonymous check.

PRO ($0.01). One-call briefing on a company or topic: latest GDELT news (optionally UK outlets only), Hacker News discussion and Wikipedia background.

news_briefing input schema

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "days": {
      "type": "number"
    },
    "query": {
      "type": "string"
    },
    "uk_only": {
      "type": "boolean"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 540 ms
95th percentile latency: 540 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 1, 2026, 9:01 AM UTC · probe · passed · 540 ms · metadata changed · 10 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http uk-business-calendar-mcp https://uk-business-calendar-mcp.donniertf.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add uk-business-calendar-mcp --url https://uk-business-calendar-mcp.donniertf.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable uk-business-calendar-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "uk-business-calendar-mcp": {
      "url": "https://uk-business-calendar-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "uk-business-calendar-mcp": {
      "type": "streamableHttp",
      "url": "https://uk-business-calendar-mcp.donniertf.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start uk-business-calendar-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "uk-business-calendar-mcp": {
      "type": "http",
      "url": "https://uk-business-calendar-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http uk-business-calendar-mcp https://uk-business-calendar-mcp.donniertf.workers.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "uk-business-calendar-mcp": {
      "url": "https://uk-business-calendar-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "uk-business-calendar-mcp": {
      "serverUrl": "https://uk-business-calendar-mcp.donniertf.workers.dev/mcp"
    }
  }
}

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