Grades are a hygiene check, not a security guarantee.

MCP, MCP server

ai.smithery/kesslerio-attio-mcp-server

Connect AI to your Attio CRM.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. Only try it in a sandbox.

Graded by PlugVetRubric v2

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

Rescanned at commit ae4c6480caf6, unchanged since the check below.

INSTALL_REMOTE_SCRIPT NETWORK_HOST_FROM_INPUT

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/install-claude-code.sh, line 5 # Usage: curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/scripts/install-claude-code.sh | bash

  • NETWORK_HOST_FROM_INPUT Medium

    A file takes a URL or endpoint as input and has no fixed host list.

    examples/cloudflare-mcp-server/worker.ts, line 36 async fetch(request: Request, env: Env): Promise<Response> {

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.

If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.

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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    scripts/generate-report.cjs, line 645

    fs.unlinkSync(latestPath);

    scripts/organize-tests.js, line 76

    fs.unlinkSync(sourcePath);

  • Install and update

    Serious

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

    INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER

    README.md, line 290

    curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/scripts/install-claude-desktop.sh | bash

    README.md, line 296

    curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/scripts/install-cursor.sh | bash

    scripts/install-claude-code.sh, line 5

    # Usage: curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/scripts/install-claude-code.sh | bash

    Show more

    README.md, line 302

    curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/scripts/install-claude-code.sh | bash

    docs/usage/getting-started.md, line 41

    curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/install.sh | bash

    scripts/install-claude-desktop.sh, line 5

    # Usage: curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/scripts/install-claude-desktop.sh | bash

    scripts/install-cursor.sh, line 5

    # Usage: curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/scripts/install-cursor.sh | bash

    scripts/install.sh, line 5

    # Usage: curl -fsSL https://raw.githubusercontent.com/kesslerio/attio-mcp-server/main/install.sh | bash

    scripts/setup-codex.sh, line 72

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

    package.json, line 96

    postinstall

    package.json, line 29

    prepare

    package.json, line 206

    @dqbd/tiktoken

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach app.attio.com. The description does not name that host. accepts a host from input, with no fixed list in this file.

    NETWORK_HOST_FROM_INPUT NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    examples/cloudflare-mcp-server/worker.ts, line 36

    async fetch(request: Request, env: Env): Promise<Response> {

    examples/cloudflare-mcp-server/src/oauth-handlers.ts, line 225

    const tokenResponse = await fetch('https://app.attio.com/oauth/token', {

    examples/cloudflare-mcp-server/src/oauth-handlers.ts, line 523

    const response = await fetch('https://app.attio.com/oauth/token', {

    Show more

    packages/core/src/api/http-client.ts, line 107

    const response = await fetch(url, {

    scripts/attio-oauth.ts, line 88

    const req = https.request(options, (res) => {

    scripts/attio-smoke.js, line 17

    const probe = await http.get('/objects/companies');

    scripts/attio-smoke.ts, line 10

    const probe = await http.get('/objects/companies');

    scripts/e2e-health-check.sh, line 141

    if ! command -v curl >/dev/null 2>&1; then

    scripts/test-runner.sh, line 81

    if curl -s --fail -H "Authorization: Bearer $ATTIO_API_KEY" "https://api.attio.com/v2/workspaces" &>/dev/null; then

    scripts/docker/docker-run.sh, line 124

    --health-cmd "curl -f http://localhost:${PORT}/health || exit 1" \

    docs/api/lists-api.md, line 628

    const response = await axios.post('https://api.attio.com/v2/lists', {

    docs/api/lists-api.md, line 735

    const response = await axios.post('https://api.attio.com/v2/lists', params, {

    docs/api/notes-api.md, line 241

    const response = await axios.post('https://api.attio.com/v2/notes', {

    docs/api/objects-api.md, line 452

    const response = await axios.post('https://api.attio.com/v2/objects', {

    docs/api/records-api.md, line 450

    const response = await axios.post('https://api.attio.com/v2/objects/companies/records', {

    docs/api/tasks-api.md, line 280

    const response = await axios.get('https://api.attio.com/v2/tasks', {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    configs/vitest/vitest.config.integration.ts, line 5

    // Load environment variables from .env file for integration tests

    configs/vitest/vitest.config.integration.ts, line 10

    config({ path: '.env.test' });

    configs/vitest/vitest.config.integration.ts, line 12

    // .env.test is optional

    Show more

    configs/vitest/vitest.config.integration.ts, line 35

    // ATTIO_API_KEY loaded from .env via dotenv

    docs/usage/skills/README.md, line 144

    # 1. Ensure API key is set (add to .env or environment)

    docs/usage/skills/README.md, line 145

    echo "ATTIO_API_KEY=your_key_here" >> .env

    docs/usage/skills/README.md, line 163

    echo "ATTIO_API_KEY=your_key_here" >> .env

    docs/usage/skills/attio-workspace-skill.md, line 123

    # Option B: Add to .env file (recommended)

    scripts/analyze-token-footprint.ts, line 16

    process.env.TOKEN_FOOTPRINT_THRESHOLD,

    scripts/analyze-token-footprint.ts, line 19

    const topN = parseEnvInt(process.env.TOKEN_FOOTPRINT_TOP_N, 10);

    scripts/attio-oauth.ts, line 139

    if (process.env.ATTIO_REFRESH_TOKEN) {

    scripts/attio-oauth.ts, line 140

    return process.env.ATTIO_REFRESH_TOKEN;

    scripts/attio-smoke.js, line 3

    const token = process.env.ATTIO_API_KEY;

    scripts/attio-smoke.ts, line 3

    const token = process.env.ATTIO_API_KEY!;

    scripts/performance-monitor.cjs, line 57

    if (!process.env.ATTIO_API_KEY) {

    scripts/setup-test-data.ts, line 24

    const apiKey = process.env.ATTIO_API_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. the file cap was reached before every file was read.

    OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

    docs/tools/tool-discovery-baseline.json, line 1

    {

    scripts/workflows/claude/parse-command.mjs, line 1

    import { readFileSync } from 'node:fs';

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit ae4c6480caf6. can delete files. install fetches a script from the network. README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. can reach app.attio.com. The description does not name that host. accepts a host from input, with no fixed list in this file. reads a credential or environment file. a file was over the read cap and was not fully read. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: ae4c6480caf6ac25371e66e1a9dc569a23b12d29

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