# UK Data: Everyday calculators

> Tips, discounts, age, BMI, calorie needs, grades, GPA and date formatting, with the formula stated

- name: uk.co.reliness/everyday-calculators
- version: 1.5.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/uk.co.reliness%2Feveryday-calculators
- tools: https://api.protogrid.dev/v1/servers/uk.co.reliness%2Feveryday-calculators/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "everyday-calculators": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/everyday-calculators",
      "headers": {
        "Authorization": "Bearer ${EVERYDAY_CALCULATORS_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${EVERYDAY_CALCULATORS_TOKEN}`.

## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-0d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 9 of 9 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,426 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 0 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 9, about 1,426 tokens to load them all
- tool set hash: eee0183ce8ae115ef8506b7676c3169a
- badge: [![protogrid quality](https://protogrid.dev/badge/uk.co.reliness/everyday-calculators.svg)](https://protogrid.dev/servers/uk.co.reliness/everyday-calculators)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://ukdata.reliness.co.uk/mcp/everyday-calculators (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (9)

- `batting_average`: Calculates a baseball player's batting average by dividing hits by at-bats. Returns the result rounded to the specified precision (default 3 decimal places). (cost: 1 credit)
- `calculate_age`: Calculates a person's age in years based on their birth date and the current date. (cost: 1 credit)
- `calculate_bmi`: Calculates Body Mass Index (BMI) using weight and height in either metric (kg, cm) or imperial (lbs, inches) systems. Formula: weight / (height²). (cost: 1 credit)
- `calculate_calorie_intake`: Calculates recommended daily calorie intake using the Mifflin-St Jeor equation and macronutrient distribution based on personal characteristics and fitness goals. Returns total daily energy expenditure (TDEE) and grams of protein, carbohydrates, and fats. (cost: 1 credit)
- `calculate_gpa`: Calculates the Grade Point Average (GPA) from a list of grade points on a 4.0 scale. Returns the mean of all grades rounded to 2 decimal places. (cost: 1 credit)
- `calculate_grade`: Converts a numerical percentage score to a letter grade using standard grading scale (A, B, C, D, F). (cost: 1 credit)
- `calculate_tip`: Calculates the tip amount based on the bill total and tip percentage. Returns the tip amount and total including tip. (cost: 1 credit)
- `format_date`: Convert a date (and optional time) from one format to another using strftime codes (%Y %m %d %B %b %A %a %H %I %M %S %p %j). Rejects impossible dates such as 31 February instead of rolling them over. (cost: 1 credit)
- `is_leap_year`: Checks if a given year is a leap year using the Gregorian calendar rule (divisible by 4, except centuries unless divisible by 400). (cost: 1 credit)