Github Actions Audit MCP Server

GitHub Actions Security Audit

MCP server that audits .github/workflows/*.yml files for supply-chain risks. Catches script injection, leaked tokens, unpinned actions, broad permissions, and pull_request_target foot-guns — the patterns behind several 2024–2025 supply-chain incidents.

Built by Unbearable Labs. Pay-per-event — only billed when a tool is actually called.

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Available on

• Apify Actor Store — primary, metered usage (PPE)
• MCPize — pending submission
• MCP.so — pending submission
• PulseMCP — pending submission
• Smithery — pending submission
• Glama — pending submission

Newsletter: Unbearable TechTips Weekly · All Actors: github.com/UnbearableDev

What it does

Point any MCP-capable client (Claude Desktop, Cursor, n8n, Make, Zapier, custom agents) at this server, hand it a workflow YAML, and get back structured findings with:

• Severity — critical / high / medium / low / info
• Affected job and step — exact location of the problem
• Description — why it matters, with the actual attack vector
• Remediation — what to do about it
• Fix snippet — YAML you can paste directly

Tools

Provide exactly one of workflow_yaml (paste the content) or workflow_url (HTTPS URL — typically a GitHub raw URL to a specific workflow file).

Check catalog (v2: 21 checks)

Pricing

Connecting from Claude Desktop

{
  "mcpServers": {
    "gha-audit": {
      "transport": "streamable-http",
      "url": "https://YOUR-ACTOR-URL.apify.actor/mcp"
    }
  }
}

Sibling MCPs from Unbearable Labs

• docker-compose-audit — docker-compose.yml security audit
• dockerfile-audit — Dockerfile security & quality
• hu-postcode-validator — Hungarian postcode lookup

What's NOT covered (yet)

• Reusable workflow auditing (multi-file resolution)
• CodeQL-grade dataflow tracking
• Marketplace-listed action reputation scoring

Source / contact

Source: github.com/UnbearableDev/github-actions-audit. Issues + ideas: unbearabledev@gmail.com.

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📬 Built by Noel @ Unbearable Labs. More MCP servers + audit tips in the newsletter: https://unbearabletechtips.beehiiv.com