# io.github.SemanticDataCharter/sdcdcatus (pypi · sdcdcatus)

DCAT-US 3.0 catalogs (data.json) of published Semantic Data Charter models; no account.

- Trust score: 89/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- pypi · `sdcdcatus`: 89/100 (this document), [markdown](https://verifymcp.io/servers/semanticdatacharter-sdcdcatus/sdcdcatus.md), [page](https://verifymcp.io/servers/semanticdatacharter-sdcdcatus/sdcdcatus)

## Channel facts

- Registry: `pypi`
- Package: `sdcdcatus`
- Version: `4.1.1`
- 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**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs setuptools.build_meta at install time, a recognised build step with no custom scripting around it.
  - 0 of 8 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to SemanticDataCharter/sdc_dcat3_us).
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 10 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 64/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 293 tokens (~293/item across 1 items; 1 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 70/100
  - Stability observed for 21 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 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 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.

## Install

### How do I install the io.github.SemanticDataCharter/sdcdcatus MCP server?

io.github.SemanticDataCharter/sdcdcatus runs locally as a PyPI package, launched with uvx sdcdcatus. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add semanticdatacharter-sdcdcatus -- uvx sdcdcatus
```

### Cursor

```json
{
  "mcpServers": {
    "semanticdatacharter-sdcdcatus": {
      "command": "uvx",
      "args": [
        "sdcdcatus"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "semanticdatacharter-sdcdcatus": {
      "command": "uvx",
      "args": [
        "sdcdcatus"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add semanticdatacharter-sdcdcatus -- uvx sdcdcatus
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "semanticdatacharter-sdcdcatus": {
      "type": "local",
      "command": [
        "uvx",
        "sdcdcatus"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add semanticdatacharter-sdcdcatus --command uvx --arg sdcdcatus
```

### Hermes

```yaml
mcp_servers:
  semanticdatacharter-sdcdcatus:
    command: "uvx"
    args: ["sdcdcatus"]
```

### Netclaw

```json
{
  "McpServers": {
    "semanticdatacharter-sdcdcatus": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "sdcdcatus"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add semanticdatacharter-sdcdcatus -t stdio -c uvx -a sdcdcatus
```

### Other

```json
{
  "mcpServers": {
    "semanticdatacharter-sdcdcatus": {
      "command": "uvx",
      "args": [
        "sdcdcatus"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 89, +1)

- [functional] Package version: 4.1.0 → 4.1.1

### 2026-11-04 (score 88, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-11-03 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 71, −15)

- [security regression] Malware scan: pass → unverified

### 2026-10-29 (score 86, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-10-27 (score 70, −14)

- [security regression] Malware scan: pass → unverified

### 2026-10-26 (score 84, +15)

- [security improvement] Malware scan: unverified → pass

## MCP tools (1)

### `write_catalog` (~216 tokens)

Write a DCAT-US 3.0 catalog (data.json) describing one or more published Semantic Data Charter models as datasets, each with the model's schema cited as describedBy (the data dictionary) and conformsTo by URL and SHA-256. A contact name and e-mail are mandatory in DCAT-US; the package's defaults apply unless given. Validated in this package's CI with GSA's own JSON Schema at a pinned commit.

Input parameters:

- `contact_email` (string): The publisher's contact e-mail; the package's declared default applies when omitted.
- `contact_name` (string): The publisher's contact point name; the package's declared default applies when omitted.
- `ct_ids` (array): Model identifiers (CUID2) in the public catalog, fetched from the host this server was started with.
- `date` (string): The catalog date, YYYY-MM-DD; today when omitted.
- `directories` (array): Package directories on disk. Give ct_ids or directories or both; at least one model.

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/semanticdatacharter-sdcdcatus/sdcdcatus#diagnostics

## Score history

- 2026-11-05: 89
- 2026-11-04: 88
- 2026-11-03: 73
- 2026-11-02: 72
- 2026-11-01: 72
- 2026-10-31: 71
- 2026-10-30: 71
- 2026-10-29: 86
- 2026-10-28: 70
- 2026-10-27: 70
- 2026-10-26: 84
- 2026-10-25: 69
- 2026-10-24: 83
- 2026-10-23: 83
- 2026-10-22: 82
- 2026-10-21: 79
- 2026-10-20: 79
- 2026-10-19: 79
- 2026-10-18: 79
- 2026-10-17: 79
- 2026-10-16: 79
- 2026-10-15: 79
- 2026-10-14: 49
- 2026-10-13: 49

## Common questions

### What is the io.github.SemanticDataCharter/sdcdcatus MCP server?

io.github.SemanticDataCharter/sdcdcatus is an MCP server listed in the public MCP registry as io.github.SemanticDataCharter/sdcdcatus. DCAT-US 3.0 catalogs (data.json) of published Semantic Data Charter models; no account. This page covers its PyPI package (sdcdcatus).

### Is the io.github.SemanticDataCharter/sdcdcatus MCP server safe to use?

io.github.SemanticDataCharter/sdcdcatus scores 89 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. Its build provenance is signed and verified. 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.SemanticDataCharter/sdcdcatus MCP server expose?

io.github.SemanticDataCharter/sdcdcatus exposes 1 tool: write_catalog. Their descriptions and schemas cost roughly 216 tokens of context every time the server is loaded.

### Is the io.github.SemanticDataCharter/sdcdcatus MCP server still maintained?

io.github.SemanticDataCharter/sdcdcatus 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.SemanticDataCharter/sdcdcatus MCP server under?

io.github.SemanticDataCharter/sdcdcatus declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/sdcdcatus/
- Socket report: https://socket.dev/pypi/package/sdcdcatus
- Repository: https://github.com/SemanticDataCharter/sdc_dcat3_us
- Changelog RSS feed: https://verifymcp.io/servers/semanticdatacharter-sdcdcatus/sdcdcatus.xml
- Changelog JSON feed: https://verifymcp.io/servers/semanticdatacharter-sdcdcatus/sdcdcatus.json
- HTML version of this page: https://verifymcp.io/servers/semanticdatacharter-sdcdcatus/sdcdcatus