# `io.github.Kay0sstheory/currensor` 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.Kay0sstheory/currensor
- JSON: https://anlyon.dev/api/v1/servers/io.github.Kay0sstheory/currensor
- Version: 1.0.1 (active)
- Publisher: io.github.Kay0sstheory (GitHub account)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Repository: https://github.com/Kay0sstheory/Currensor
- Metadata from the official MCP Registry, synced 2026-10-21T18:17:19.027Z

Title and description, as the publisher wrote them:

```untrusted-server-text
Currensor
Live currency conversion for 166 currencies, shown as an interactive in-chat card. No sign-in.
```

Scanned 2026-10-21T19:03:34.736Z over streamable-http.

**1 tool: 1 do something that can't be undone.**

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

## Findings

- **warn** Annotations that disagree with the tool in `convert_currency` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "convert_currency" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "convert_currency" says "convert": a word for a change.
```


## Can't be undone (1)

Sends, pays, publishes or merges: once done, it cannot be taken back. Claude Code: ask.

### `convert_currency`

- The name "convert_currency" says "convert": a word for a change.
- The input addresses people (input.to): what it sends cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Convert an amount from one currency into one or more others at live market rates, shown as an interactive card. Use ISO 4217 codes (USD, EUR, INR, JPY…). Covers 166 currencies, refreshed hourly.
```

## Claude Code permissions

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

```json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__currensor__convert_currency"
    ],
    "deny": []
  }
}
```