Safe maths and statistics, and UK working-day arithmetic using official bank holidays
Connect Remote server
claude mcp add --transport http maths-dates https://ukdata.reliness.co.uk/mcp/maths-dates --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"maths-dates": {
"url": "https://ukdata.reliness.co.uk/mcp/maths-dates",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"maths-dates": {
"type": "http",
"url": "https://ukdata.reliness.co.uk/mcp/maths-dates",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://ukdata.reliness.co.uk/mcp/maths-dates
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 2 found in our last check
calculateEvaluate an expression (+ - * / ^ %, sqrt, ln, log, round, min, max, pi) or summary statistics of a list of numbers. (cost: 1 credit)
working_daysUK working days between two dates, or the date N working days after/before a date, skipping weekends and bank holidays. (cost: 1 credit)
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional. Bearer <key> for more than the free daily allowance; free key from POST https://ukdata.reliness.co.uk/keys |
Details
| Endpoint | https://ukdata.reliness.co.uk/mcp/maths-dates (Streamable HTTP) |
| First published | 4 Nov 2026 |
| Last updated | 4 Nov 2026 |
| Registry name | uk.co.reliness/maths-dates |
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