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117,192 servers. Updated
20 Best Observability MCP Servers: compared and ranked, November 2026Ranked from 684 matching servers on stars, growth, downloads and maintenance. Updated .

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  • A
    license
    A
    quality
    C
    maintenance
    Enables AI agents to inspect any public domain’s web technology stack, email deliverability and DNS health (MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI), and HTTPS security posture with typed JSON scores and remediation-ready findings, plus history, bulk checks, monitoring alerts, and reverse technology lookups.
    12
    476 npm
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    MCP server that provides read-only business operations tools: list businesses, get status, identify missing inputs, and prepare email drafts/attachment manifests from synthetic evidence, with strict no-send/no-write safeguards.
    Apache 2.0
  • A
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    Not graded
    quality
    A
    maintenance
    Enables AI apps on the local computer to search and read Thunderbird mail, organize messages, manage contacts, and prepare drafts, with optional controlled sending. Access is limited to user-selected accounts and tool groups, with local-only communication and a pause control.
    GPL 3.0
  • A
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    Not graded
    quality
    C
    maintenance
    A collection of small MCP servers for macOS automation that expose Apple Mail, MoneyMoney, and Spotlight functionality as tools via AppleScript and command-line, enabling AI applications to search mail, manage contacts and transactions, and perform system-wide file searches through natural language.
    MIT
  • A
    license
    A
    quality
    D
    maintenance
    MCP server that encapsulates Apple Mail on macOS via AppleScript, enabling invoice PDF search, attachment saving, and message flagging through natural language.
    5
    MIT
  • A
    license
    A
    quality
    D
    maintenance
    An MCP-compliant server that exposes Gmail and Google Docs as tools, enabling AI agents to draft, send, and manage emails, as well as create, read, and append to documents through natural language.
    9
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    Send email, find out why an email failed, set up sending domains, and manage templates, contacts, lists and campaigns in your AhaSend account.
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    This foundation-only service is intended to enable narrowly bounded, typed operations over Shayona business data, starting with an approval-bound, redacted-preview workflow for emailing customer service credentials. It is designed to keep usernames and decrypted passwords out of MCP results, previews, errors, logs, traces, and approval state.
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables ChatGPT and Codex to interact with Zoho Mail through Zoho's official MCP service, with safe workflows and capability boundaries.
    MIT
  • F
    license
    Not graded
    quality
    D
    maintenance
    Provides MCP tools for searching, reading, and drafting Gmail emails, as well as querying SAP OData endpoints with safe read operations and mock mode.
    -
  • A
    license
    A
    quality
    D
    maintenance
    Enables AI assistants to manage multiple Outlook/Microsoft 365 mailboxes simultaneously through MCP tools, with local OAuth token storage.
    1
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Enables Claude to check, search, read, and organize email across multiple Spacemail (Spaceship) inboxes, and to compose threaded drafts or replies that are saved to Drafts for review before sending. Optional direct sending, safe move-to-Trash instead of permanent deletion, and keychain-backed credentials keep the workflow private and controlled.
    10
    569 npm
    MIT
  • F
    license
    Not graded
    quality
    C
    maintenance
    MCP server that exposes Gmail and SAP tools, enabling natural-language email management and SAP data browsing through a Mistral-powered AI assistant.
    -
  • A
    license
    A
    quality
    A
    maintenance
    A stdio MCP server exposing a validate_emails tool that lets agents screen email lists without sending mail or probing SMTP, checking syntax, DNS/MX records, disposable domains, role accounts, free providers, typo suggestions, and SPF/DMARC. Each address comes back with a valid/risky/invalid/unknown verdict plus machine-readable reason codes so agents can clean leads and signups before outreach or import.
    2
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Send email through your own Amazon SES account, and check domain verification, the suppression list and sandbox status. Works with any SES account; Wraps adds send history and delivery events.
    7
    1
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    Enables AI agents to create and send Gmail messages and append content to Google Docs through the MCP protocol.
    3
    35 npm
    ISC
  • A
    license
    A
    quality
    D
    maintenance
    Create disposable email inboxes, extract OTP codes in 15 languages, and receive webhooks — all from your AI agent. One call: create inbox → wait for email → get the verification code. Supports 7 domains, email forwarding, and HMAC-signed webhooks with OTP included in payload. Free tier available.
    8
    5 npm
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    MCP server for SentVia that provides email infrastructure for AI agents, enabling them to create inboxes, send, reply, forward, search messages, manage drafts, domains, webhooks, and allow/block rules through 21 tools.
    21
    414 npm
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    Analyze LinkedIn & email outreach campaigns, track pipeline performance, and review lead conversations for RevOps, Sales Managers, and SDR teams.
    Apache 2.0
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables Claude Desktop on Windows to search and read Yahoo Mail messages in read-only mode, without sending, deleting, or otherwise modifying them.
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    MCP server giving Claude access to Tuta mail, calendar, contacts and drive. Supports mail modes (dedicated/shared/folder), trusted sender filtering with E2E verification, and Docker-based setup.
    AGPL 3.0
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables Codex on Windows to search, read, and manage Naver Mail over IMAP/SMTP, including thread viewing, attachment downloads, draft creation, and sending or replying to messages. Credentials are stored encrypted with Windows DPAPI, and the local server provides tools for profiles, folders, and drafts.
    MIT