# `io.github.varvararatta/data_compute_stats_mcp` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/io.github.varvararatta/data_compute_stats_mcp
- JSON: https://anlyon.dev/api/v1/servers/io.github.varvararatta/data_compute_stats_mcp
- Version: 1.0.0 (active)
- Publisher: io.github.varvararatta (GitHub account)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Repository: https://github.com/varvararatta/botfactory-mcp
- Metadata from the official MCP Registry, synced 2026-10-21T18:51:15.616Z

Title and description, as the publisher wrote them:

```untrusted-server-text
Data Compute Stats Mcp
Transform your data analysis with our Data Compute & Stats Bot. Effortlessly calculate descriptive
```

Scanned 2026-10-21T19:37:06.534Z over streamable-http.

**6 tools: 5 change things and 1 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 5 | ask |
| Only reads | read | 1 | allow |

## Findings

No check matched anything in these tool definitions.


## Changes things (5)

Creates or changes something that can be changed back. Claude Code: ask.

### `calculate_irr`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Calculate Internal Rate of Return (IRR) for cashflows.
    cashflows: [initial_investment (negative), cf1, cf2, ...] Returns: {irr_percent}
```

### `calculate_npv`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Calculate Net Present Value. rate: discount rate as decimal (e.g. 0.1 = 10%).
    Returns: {npv, rate_percent, cashflows_count}
```

### `calculate_statistics`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Calculate descriptive statistics for a list of numbers.
    Returns: {mean, median, std_dev, min, max, sum, count, percentiles}
```

### `convert_units`

- The name "convert_units" says "convert": a word for a change.

Description, as the server wrote it:

```untrusted-server-text
Convert between units. Supports: length, weight, temperature, area, volume.
    Returns: {result, from_unit, to_unit, formula}
```

### `health_check`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Server health check.
```

## Only reads (1)

Looks things up and changes nothing. Claude Code: allow.

### `get_exchange_rates`

- The name "get_exchange_rates" says "get": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Get current exchange rates from NBU (Ukraine National Bank) — no API key needed.
    Returns: {rates, base, date, source}
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `data_compute_stats_mcp`:

```json
{
  "permissions": {
    "allow": [
      "mcp__data_compute_stats_mcp__get_exchange_rates"
    ],
    "ask": [
      "mcp__data_compute_stats_mcp__health_check",
      "mcp__data_compute_stats_mcp__calculate_statistics",
      "mcp__data_compute_stats_mcp__calculate_irr",
      "mcp__data_compute_stats_mcp__calculate_npv",
      "mcp__data_compute_stats_mcp__convert_units"
    ],
    "deny": []
  }
}
```