Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Wefact Mcp

A local MCP server for the Dutch/Belgian invoicing platform WeFact.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED SECRETS_ENV_READ

Why this grade

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    wefact_mcp/server.py, line 40 raise WeFactError("WEFACT_API_KEY is not set. Put it in .env or the MCP server env.")

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    packaging/build_mcpb.py, line 35 subprocess.run(

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    wefact_mcp/server.py, line 38 api_key = os.environ.get("WEFACT_API_KEY", "")

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    packaging/build_mcpb.py, line 35

    subprocess.run(

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    wefact_mcp/server.py, line 38

    api_key = os.environ.get("WEFACT_API_KEY", "")

    wefact_mcp/server.py, line 40

    raise WeFactError("WEFACT_API_KEY is not set. Put it in .env or the MCP server env.")

    .github/release-notes/v1.0.0.md, line 30

    **Local only.** The server runs on your machine over stdio. Your API key lives in a local `.env` and only travels to `api.mijnwefact.nl`. No telemetry, no intermediate server.

    Show more

    .github/release-notes/v1.0.0.md, line 38

    cp .env.example .env # add WEFACT_API_KEY

    .gitignore, line 1

    .env

    INSTALL.md, line 89

    Maak in de map `C:\Users\stefa\wefact-mcp` een kopie van `.env.example` met

    INSTALL.md, line 90

    de naam `.env`:

    INSTALL.md, line 93

    copy .env.example .env

    INSTALL.md, line 94

    notepad .env

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit 997f5ce8575b. requests shell access. The manifest names this permission. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 997f5ce8575b9630a4d252a9b63d935ad5f0ea4d

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Read how this letter is chosen