Grades are a hygiene check, not a security guarantee.

MCP, MCP server

aiochainscan

aiochainscan reads on-chain history from public block explorers across 85 chains through one async client — and hands it back usable, not raw.

Compatibility: Not stated.

Grade C

One Medium finding. Read the report before installing.

Graded by PlugVetRubric v2

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

INSTALL_REMOTE_SCRIPT

Why this grade

  • INSTALL_REMOTE_SCRIPT Medium

    Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).

    scripts/setup-dev.sh, line 12 echo " curl -LsSf https://astral.sh/uv/install.sh | sh"

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

    scripts/agent/ruff_format_hook.py, line 42

    subprocess.run(

  • Install and update

    Serious

    install fetches a script from the network. The docs document an installer that pipes a download into a shell.

    INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER

    scripts/setup-dev.sh, line 12

    echo " curl -LsSf https://astral.sh/uv/install.sh | sh"

    scripts/agent/preflight.sh, line 41

    fail "uv not found - run: curl -LsSf https://astral.sh/uv/install.sh | sh"

    .github/workflows/wheels.yml, line 99

    curl https://sh.rustup.rs -sSf | sh -s -- -y &&

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    aiochainscan/services/pagination.py, line 195

    return await self.fetch(params)

    aiochainscan/services/pagination.py, line 233

    async def fetch(params: dict[str, Any]) -> tuple[list[JSONDict], Cursor]:

    aiochainscan/services/pagination.py, line 301

    1. Fetch a page via ``fetch(params)``.

    Show more

    aiochainscan/services/pagination.py, line 310

    fetch: Async page fetch (see :func:`page_fetcher`). A

    aiochainscan/services/pagination.py, line 369

    items, cursor = await fetch(params)

    aiochainscan/services/pagination.py, line 399

    fetch: Async page fetch (see :func:`page_fetcher`). A

    aiochainscan/services/pagination.py, line 690

    items, cursor = await fetch(request)

    aiochainscan/services/pagination.py, line 739

    fetch: Async page fetch (see

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    AGENTS.md, line 375

    # copies .env, runs uv sync --extra dev --frozen

    aiochainscan/cli.py, line 331

    %(prog)s generate-env > .env # template for the keys in use

    aiochainscan/config.py, line 61

    #: U+FFFD - the only way a decoded ``.env`` line can contain it is

    Show more

    aiochainscan/config.py, line 67

    """Normalize a ``.env`` key: trim whitespace and an optional ``export ``.

    aiochainscan/config.py, line 80

    """Parse the value half of a ``.env`` line.

    aiochainscan/config.py, line 153

    - Automatic .env file loading (on first access)

    aiochainscan/config.py, line 182

    ``~/.aiochainscan/.env`` is read for every cwd), so a second

    aiochainscan/config.py, line 186

    foreign ``.env``/JSON. ``reset_instance()`` (fresh binding) or

    scripts/agent/probe_provider_caps.py, line 415

    if not os.environ.get('ETHERSCAN_KEY'):

  • Agent instructions

    Pass

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

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    uv.lock, line 1

    version = 1

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Note

Hygiene check of commit 6b55e6ed3404. requests shell access. The manifest names this permission. install fetches a script from the network. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: 6b55e6ed34040014db85df4f08433f3b0c4d48db

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen