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75,634 servers. Updated
20 Best Email MCP Servers — compared and ranked, August 2026Ranked from 1,989 matching servers on stars, growth, downloads and maintenance. Updated .

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"A tool for converting emails into 5-minute podcasts" matching MCP servers:

  • mcp-tool-poison-guard

    princeruhulofficial
    A
    license
    Not graded
    quality
    B
    maintenance
    MCP server that detects and guards against tool poisoning and prompt injection attacks in tool descriptions and schemas. It provides risk scoring, pattern detection, safe rewriting, and audit reports with zero external API cost.
    MIT

  • gef-mcp-for-ctf

    guaidao2
    F
    license
    Not graded
    quality
    D
    maintenance
    GDB Enhanced Features MCP server for remote debugging and CTF exploitation with 41 specialized tools including ROP search, format-string detection, and memory patching.
    9

  • EvalKit MCP Server

    tr4m0ryp
    A
    license
    B
    quality
    B
    maintenance
    Enables testing AI safety classifier robustness against query decomposition, obfuscation, and multi-agent attacks. Provides tools for full evaluation pipelines, query previews, and status checks.
    4
    4
    MIT

  • Mythic MCP

    johanrobbenites
    F
    license
    B
    quality
    B
    maintenance
    Enables LLMs to perform automated penetration testing and Active Directory reconnaissance through Mythic, with tools for executing PowerShell, AD recon, domain user enumeration, and Kerberoasting.
    12

  • Eidolon

    sudohnim
    A
    license
    A
    quality
    B
    maintenance
    Privacy-first OSINT scanning MCP server that aggregates ~25 sources into a risk report, running locally with no data leaving your machine.
    5
    1
    AGPL 3.0

  • vibecheck

    ArisRhiannon
    A
    license
    A
    quality
    B
    maintenance
    Agent-native "safe to ship?" security gate for AI-generated code. Uses real parsers and inter-rocedural taint analysis (JS/TS, Python, Go) to flag the classes AI coding agents get wrong — secrets, SQL injection, SS, SSRF, path traversal, command injection, weak JWT/CORS — and ranks findings by confidence. Exposes a scan tool over MCP.
    1
    6
    2
    MIT
  • Polygraph by polygraphso

    Polygraphofficial

    polygraphso
    A
    license
    A
    quality
    A
    maintenance
    Open behavioral litmus for MCP servers — grades A–F across tool-output injection, egress, sensitive-data, and adversarial-input, with reproducible, content-addressed evidence. Tools: run_litmus, verify_attestation.
    4
    157
    7
    Apache 2.0

  • mcp-http

    Llamatron2112
    F
    license
    A
    quality
    C
    maintenance
    Provides a generic HTTP client tool allowing AI agents to make arbitrary HTTP requests from their environment, with support for environment-variable placeholders for secrets.
    1

  • mcp-toolkit-server

    GonzaBot
    A
    license
    A
    quality
    C
    maintenance
    Converts Claude into a cybersecurity assistant by exposing 17 tools for network reconnaissance, cryptography, and security analysis, enabling users to perform tasks like SSL certificate checking, port scanning, and JWT analysis directly within conversations.
    17
    MIT

  • meok-mcp-injection-scan-mcp

    CSOAI-ORG
    A
    license
    A
    quality
    C
    maintenance
    Scans MCP servers for prompt-injection, tool-poisoning, and SSRF vulnerabilities using 30+ canonical rules across 5 severity tiers, with optional signed safety reports for procurement.
    5
    MIT

  • fingerprint-mcp

    badchars
    A
    license
    A
    quality
    B
    maintenance
    A universal digital fingerprinting MCP server that combines 103 techniques across TCP, TLS, SSH, HTTP, DNS, and more into a single interface for AI agents, enabling full-spectrum fingerprinting on demand.
    2
    13
    20
    3
    AGPL 3.0

  • theHarvester MCP Server

    schwarztim
    A
    license
    A
    quality
    F
    maintenance
    Enables AI assistants to perform domain reconnaissance using theHarvester OSINT tool, including email harvesting, subdomain discovery, DNS brute force, and Shodan integration, via SSH on a Kali Linux host.
    8
    1
    MIT

  • Xploit47

    aloc999
    A
    license
    A
    quality
    B
    maintenance
    AI-powered penetration testing reasoning engine (MCP server) for attack path planning, step scoring, and tool recommendations using Beam Search and Monte Carlo Tree Search.
    1
    1
    MIT

  • Tengu

    rfunix
    A
    license
    A
    quality
    D
    maintenance
    Turns Claude into a penetration testing copilot with 80 security tools, safety controls, and automatic reporting.
    80
    58
    MIT