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UK Data: Maths and working days

Official registry Data and databases

Safe maths and statistics, and UK working-day arithmetic using official bank holidays

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http uk-data-maths-and-working-days 'https://ukdata.reliness.co.uk/mcp/maths-dates' --header 'Authorization: <Optional. Bearer <key> for more than the free daily allowance; free key from POST https://ukdata.reliness.co.uk/keys>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "uk-data-maths-and-working-days": {
            "type": "http",
            "url": "https://ukdata.reliness.co.uk/mcp/maths-dates",
            "headers": {
                "Authorization": "<Optional. Bearer <key> for more than the free daily allowance; free key from POST https://ukdata.reliness.co.uk/keys>"
            }
        }
    }
}

Frequently asked questions

What is UK Data: Maths and working days?

Safe maths and statistics, and UK working-day arithmetic using official bank holidays

How do I install UK Data: Maths and working days?

It runs as a remote server. In Claude Code: claude mcp add --transport http uk-data-maths-and-working-days 'https://ukdata.reliness.co.uk/mcp/maths-dates' --header 'Authorization: <Optional. Bearer <key> for more than the free daily allowance; free key from POST https://ukdata.reliness.co.uk/keys>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does UK Data: Maths and working days need an API key?

Yes. It expects Authorization, which you set in its configuration.

Who maintains UK Data: Maths and working days?

It is published by uk.co.reliness. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.