# io.github.CloudCorpRecords/calcport (oci · ghcr.io/cloudcorprecords/calcport)

Safe arithmetic: evaluate expressions and add, subtract, multiply, divide.

- Trust score: 45/100 (low)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `@reneturcios/calcport`: 65/100, [markdown](https://verifymcp.io/servers/cloudcorprecords-calcport/reneturcios-calcport.md), [page](https://verifymcp.io/servers/cloudcorprecords-calcport/reneturcios-calcport)
- oci · `ghcr.io/cloudcorprecords/calcport`: 45/100 (this document), [markdown](https://verifymcp.io/servers/cloudcorprecords-calcport/ghcr-io-cloudcorprecords-calcport.md), [page](https://verifymcp.io/servers/cloudcorprecords-calcport/ghcr-io-cloudcorprecords-calcport)

## Channel facts

- Registry: `oci`
- Package: `ghcr.io/cloudcorprecords/calcport`
- Version: `0.1.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Supply Chain Security**: 0/100
  - No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.
  - Known CVEs could not be checked: this artifact ships no SBOM or dependency manifest, so there is no dependency list to read.
  - Install-script risk not yet assessed.
  - Dependency health could not be checked: this artifact ships no SBOM or dependency manifest, so there is no dependency list to read.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 8 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 173 tokens (~34/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 30/100
  - Stability observed for 9 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the io.github.CloudCorpRecords/calcport MCP server?

io.github.CloudCorpRecords/calcport runs locally as a container image, launched with docker run --rm -i ghcr.io/cloudcorprecords/calcport:0.1.0. Ready-made configuration for Claude, Cursor, VS Code, Codex and 3 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add cloudcorprecords-calcport -- docker run --rm -i ghcr.io/cloudcorprecords/calcport:0.1.0
```

### Cursor

```json
{
  "mcpServers": {
    "cloudcorprecords-calcport": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/calcport:0.1.0"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "cloudcorprecords-calcport": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/calcport:0.1.0"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add cloudcorprecords-calcport -- docker run --rm -i ghcr.io/cloudcorprecords/calcport:0.1.0
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cloudcorprecords-calcport": {
      "type": "local",
      "command": [
        "docker",
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/calcport:0.1.0"
      ],
      "enabled": true
    }
  }
}
```

### Hermes

```yaml
mcp_servers:
  cloudcorprecords-calcport:
    command: "docker"
    args: ["run", "--rm", "-i", "ghcr.io/cloudcorprecords/calcport:0.1.0"]
```

### Netclaw

```json
{
  "McpServers": {
    "cloudcorprecords-calcport": {
      "Transport": "stdio",
      "Command": "docker",
      "Arguments": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/calcport:0.1.0"
      ]
    }
  }
}
```

### Other

```json
{
  "mcpServers": {
    "cloudcorprecords-calcport": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/cloudcorprecords/calcport:0.1.0"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 45, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 44, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 43, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 42, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 41)

First indexed and scored.

## MCP tools (5)

### `calculate` (~28 tokens)

Evaluate an arithmetic expression and return its numeric result.

Input parameters:

- `expression` (string, required): Arithmetic expression to evaluate

### `add` (~35 tokens)

Add two numbers and return their sum.

Input parameters:

- `a` (number, required): First addend
- `b` (number, required): Second addend

### `subtract` (~41 tokens)

Subtract the second number from the first and return the difference.

Input parameters:

- `a` (number, required): Number to subtract from
- `b` (number, required): Number to subtract

### `multiply` (~33 tokens)

Multiply two numbers and return their product.

Input parameters:

- `a` (number, required): First factor
- `b` (number, required): Second factor

### `divide` (~36 tokens)

Divide the first number by the second and return the quotient.

Input parameters:

- `a` (number, required): Dividend
- `b` (number, required): Divisor

## Diagnostics

Captured diagnostic sections: Provenance. The full working is on the page: https://verifymcp.io/servers/cloudcorprecords-calcport/ghcr-io-cloudcorprecords-calcport#diagnostics

## Score history

- 2026-11-05: 45
- 2026-11-04: 45
- 2026-11-03: 44
- 2026-11-02: 44
- 2026-11-01: 43
- 2026-10-31: 43
- 2026-10-30: 42
- 2026-10-29: 42
- 2026-10-28: 41
- 2026-10-27: 41

## Common questions

### What is the io.github.CloudCorpRecords/calcport MCP server?

io.github.CloudCorpRecords/calcport is an MCP server listed in the public MCP registry as io.github.CloudCorpRecords/calcport. Safe arithmetic: evaluate expressions and add, subtract, multiply, divide. This page covers its container image (ghcr.io/cloudcorprecords/calcport).

### Is the io.github.CloudCorpRecords/calcport MCP server safe to use?

io.github.CloudCorpRecords/calcport scores 45 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.CloudCorpRecords/calcport MCP server expose?

io.github.CloudCorpRecords/calcport exposes 5 tools: calculate, add, subtract, multiply, divide. Their descriptions and schemas cost roughly 173 tokens of context every time the server is loaded.

### Is the io.github.CloudCorpRecords/calcport MCP server still maintained?

io.github.CloudCorpRecords/calcport is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.CloudCorpRecords/calcport MCP server under?

io.github.CloudCorpRecords/calcport declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- GitHub Container Registry: https://ghcr.io/cloudcorprecords/calcport
- Repository: https://github.com/CloudCorpRecords/calcport
- Changelog RSS feed: https://verifymcp.io/servers/cloudcorprecords-calcport/ghcr-io-cloudcorprecords-calcport.xml
- Changelog JSON feed: https://verifymcp.io/servers/cloudcorprecords-calcport/ghcr-io-cloudcorprecords-calcport.json
- HTML version of this page: https://verifymcp.io/servers/cloudcorprecords-calcport/ghcr-io-cloudcorprecords-calcport