Is io.github.mcpcustoms/mcp-customs safe to use?

io.github.mcpcustoms/mcp-customs has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.

How do I install io.github.mcpcustoms/mcp-customs?

io.github.mcpcustoms/mcp-customs supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What AI clients work with io.github.mcpcustoms/mcp-customs?

io.github.mcpcustoms/mcp-customs is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.

Is io.github.mcpcustoms/mcp-customs actively maintained?

io.github.mcpcustoms/mcp-customs is actively maintained — last commit was 27 days ago. It has 2 GitHub stars.

io.github.mcpcustoms/mcp-customs

mcp-customs

Inspect an MCP server for common security risks before you install it. Offline, zero telemetry.

2 56/wk GitHub npm

No known CVEs

Apache-2.0 license

Actively maintained

Last commit 27d ago

Works with most clients

Transport: stdio, http

0 tools

Grade F

MCPpedia last refreshed this data 18h ago

Edit this pageView history

io.github.mcpcustoms/mcp-customs is an MCP server that inspect an MCP server for common security risks before you install it. Offline, zero telemetry. Its tool list has not been published yet over stdio and http, requires no API key, and scores 56/100 on MCPpedia's security, maintenance and efficiency rubric.

Analytics

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-mcpcustoms-mcp-customs": {
      "args": [
        "-y",
        "mcp-customs"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-mcpcustoms-mcp-customs)](https://mcppedia.org/s/io-github-mcpcustoms-mcp-customs)

Read me

What io.github.mcpcustoms/mcp-customs does

Inspect an MCP server for common security risks before you install it. Runs fully offline. No telemetry, no cloud upload, no account.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'mcp-customs' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

56/100across 5 weighted dimensions

How we score →

0255075100

−44

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked mcp-customs against OSV.dev.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.mcpcustoms/mcp-customs safe to use?: io.github.mcpcustoms/mcp-customs has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.
How do I install io.github.mcpcustoms/mcp-customs?: io.github.mcpcustoms/mcp-customs supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with io.github.mcpcustoms/mcp-customs?: io.github.mcpcustoms/mcp-customs is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.mcpcustoms/mcp-customs actively maintained?: io.github.mcpcustoms/mcp-customs is actively maintained — last commit was 27 days ago. It has 2 GitHub stars.

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Analytics

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-mcpcustoms-mcp-customs": {
      "args": [
        "-y",
        "mcp-customs"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-mcpcustoms-mcp-customs)](https://mcppedia.org/s/io-github-mcpcustoms-mcp-customs)

Read me

What io.github.mcpcustoms/mcp-customs does

Inspect an MCP server for common security risks before you install it. Runs fully offline. No telemetry, no cloud upload, no account.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'mcp-customs' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

mcp-customs

Inspect an MCP server for common security risks before you install it. Runs fully offline. No telemetry, no cloud upload, no account.

npx mcp-customs scan ./some-mcp-server

──────────────────────────────────────────────────────
MCP-CUSTOMS INSPECTION REPORT
──────────────────────────────────────────────────────
target        ./some-mcp-server
files scanned 14
score         62 / 100
stamp         [ REVIEW ]
──────────────────────────────────────────────────────
[HIGH] MCP002 — Unsanitized file path (possible path traversal)
  server.js:41  return fs.readFileSync(userPath, 'utf8');
  fix: Resolve the path against an allowed base directory ...

Why

Developers install MCP servers the way they used to install npm packages — quickly, trusting the name, and moving on. An MCP server can read your files, call your APIs, and execute commands on your behalf. Almost nobody checks what it can actually do before connecting it to their agent.

mcp-customs is the "audit before install" step, run locally, in seconds.

What it checks (v0.1)

Rule	Severity	What it looks for
MCP001	critical	Shell command execution with unsanitized interpolation
MCP002	high	File reads/writes without a path-traversal guard
MCP003	critical	`eval()` / dynamic code execution
MCP004	high	Hardcoded API keys / credentials
MCP005	critical	Tool descriptions containing hidden-instruction language (prompt injection via the tool's own metadata)
MCP006	medium	Outbound network calls combined with environment-variable reads (possible exfiltration)
MCP007	low	No permissions/scopes declared in the manifest

These are heuristic, regex-based checks — fast and fully auditable in one sitting, not a dataflow analysis. They will produce false positives and will miss things a deeper analysis would catch. Treat a CLEARED stamp as "nothing obvious," not "verified safe."

CI usage

# .github/workflows/mcp-customs.yml
- run: npx mcp-customs scan . --sarif results.sarif --fail-on high
- uses: github/codeql-action/upload-sarif@v3
  with:
    sarif_file: results.sarif

Get a badge for your README

npx mcp-customs scan . --badge --name your-server-name

Roadmap

Publish scan results to a public registry (mcp-customs.dev) with searchable trust scores
Dynamic/sandboxed analysis (catch what static checks miss)
Python-specific AST checks (current Python rules are regex-only)
Community flagging / verification on registry entries

License

Apache-2.0. No open-core trap — this CLI stays free either way. If a hosted registry/dashboard ships later, that's a separate paid product; this tool's local scanning will never require it.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

56/100across 5 weighted dimensions

How we score →

0255075100

−44

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked mcp-customs against OSV.dev.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.mcpcustoms/mcp-customs safe to use?: io.github.mcpcustoms/mcp-customs has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.
How do I install io.github.mcpcustoms/mcp-customs?: io.github.mcpcustoms/mcp-customs supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with io.github.mcpcustoms/mcp-customs?: io.github.mcpcustoms/mcp-customs is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.mcpcustoms/mcp-customs actively maintained?: io.github.mcpcustoms/mcp-customs is actively maintained — last commit was 27 days ago. It has 2 GitHub stars.

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MCP Security Weekly

Get CVE alerts and security updates for io.github.mcpcustoms/mcp-customs and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?