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Alternatives to MCP Observatory

MCP Observatory is a MCP server by KryptosAI: MCP security scanner. If it doesn't fit your setup, these 12 MCP servers cover similar ground. They are ordered by how closely they match MCP Observatory and by our rank, which weighs adoption, freshness and documentation; money never changes the order. HOL Guard leads the list (more GitHub stars (975)). 3 of them are published by the company behind the product. 1 offers a remote endpoint, so there is nothing to install locally. Each entry shows data reasons to switch, and you can open a side-by-side comparison with MCP Observatory.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

You're replacing

MCP Observatory

MCP security scanner.

12 alternatives

Ordered by how closely each matches MCP Observatory (shared product, category or stated alternative) and by rank.

  1. 1
    HOL Guard

    hashgraph-online

    Local-first AI agent security evidence and approval workflows through HOL Guard's stdio MCP server.

    • More GitHub stars (975)

    ★ 975↓ 8.4K/wkLast active Oct 24, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  2. 2
    Agent Security Scanner MCP

    sinewaveai

    Security layer for AI agents: blocks prompt injection, detects fake packages, scans vulnerabilities.

    • Open source (MIT)

    ★ 124Last active Sep 2, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  3. 3
    Shellward

    jnMetaCode

    AI agent security: 7 MCP tools for injection detection, PII scanning, command safety, DLP.

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 139Last active Sep 28, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  4. 4
    SkillTotal

    skilltotal.aiOfficial

    Deterministic security scan of MCP servers, agent skills and npm/PyPI packages.

    • Published by the vendor

    ★ 15↓ 1.7K/wkLast active Oct 23, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  5. 5
    Reversecore MCP

    sjkim1127

    Security-first MCP server for reverse engineering, malware analysis, forensics, and SAST.

    • Active in the last 30 days
    • Open source (MIT)

    ★ 212↓ 170/wkLast active Oct 17, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  6. 6
    CrowdStrike Falcon MCP Server

    CrowdStrikeOfficial

    Connects AI agents with CrowdStrike Falcon for security analysis and automation.

    • Published by the vendor
    • More GitHub stars (273)

    ★ 273↓ 13.7K/wkLast active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  7. 7
    CodeInspectus

    Synvoya

    Local-first MCP security scanner and CLI for AI-generated applications.

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 49Last active Oct 4, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  8. 8
    maintenant

    kOlapsis

    Docker monitoring for AI agents: logs, history, alerts.

    • Remote server, no local install
    • More GitHub stars (531)

    ★ 531Last active Oct 25, 2026Local (stdio), Remote (HTTP)Claude Code, VS Code, Codex, Cursor +2

  9. 9
    Tool Poisoning Scanner

    GuardBee

    Scans MCP tool definitions for hidden instructions and confused-deputy sinks

    • Active in the last 30 days
    • Open source (MIT)

    ★ 1↓ 1.1K/wkLast active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  10. 10
    Prompt Injection Scanner

    GuardBee

    Scans RAG content/scraped pages for indirect prompt injection

    • Active in the last 30 days
    • Open source (MIT)

    ★ 1↓ 1K/wkLast active Oct 22, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  11. 11
    Snyk API & Web MCP Server

    snykOfficial

    MCP server for Snyk API & Web — DAST scanning, findings management, and vulnerability triage

    • Published by the vendor

    ★ 8↓ 62/wkLast active Sep 28, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

  12. 12
    Dvalincode

    arthurpanhku

    Deterministic security scanning, no model or API key, plus offline-verifiable proof a fix worked.

    • Active in the last 30 days
    • Open source (MIT)

    ★ 118Last active Oct 19, 2026Local (stdio)Claude Code, Codex, VS Code, Cursor +2

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