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20 Best Email MCP Servers: compared and ranked, September 2026Ranked from 2,412 matching servers on stars, growth, downloads and maintenance. Updated .

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    Enables AI assistants to search, read, draft, and send Gmail messages, as well as manage labels and trash using natural language.
    18
    45 npm
    MIT
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    maintenance
    A local MCP server that provides Gmail tools (search, read, send, draft, label management) while keeping your emails only between your machine and Google, with no third-party access.
    6
    MIT
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    A
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    A
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    Your mailboxes in ChatGPT and Claude: Gmail, iCloud, Fastmail or any IMAP/SMTP account, as many as you like. Search, read, threaded replies, drafts, allowlisted sending and attachments; passwords are encrypted in the browser and the server stores nothing.
    21
    6 npm
    MIT
  • A
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    MCP server for managing a Bluesky account, enabling posting, replying, liking, reposting, following, searching, and reading timelines/notifications via natural language.
    18
    MIT
  • A
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    quality
    C
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    It enables AI assistants to search, read, and draft email in a Gmail inbox, and at the highest access level to send mail and reorganize labels, archive, or trash messages. Access is gated behind three levels — read-only by default, drafts-only, and full — so the model is only offered the tools its configured level permits.
    5
    MIT
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    Full-stack email MCP server in Rust: IMAP, SMTP, Exchange Web Services, and Microsoft Graph in one binary, with OAuth2 and multi-account support. Read, search, send, reply, forward, bulk operations, and attachment download to disk.
    31
    79
    MIT
  • A
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    Not graded
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    B
    maintenance
    gmail-mcp is a remote MCP server that exposes Gmail as a set of tools — search, read, label, draft, send — over streamable HTTP with OAuth 2.1. It runs on Cloudflare Workers under your own domain.
    89 npm
    8
    MIT
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    B
    maintenance
    Serves a strictly read-only mail archive over MCP: ordered filter rules pull matching messages from any IMAP mailbox or the Gmail API and write them to disk as byte-faithful .eml plus markdown with YAML frontmatter. Exposes list_rules, list_messages, search_messages, read_message (with full-thread reads) and sync; it never sends, deletes or modifies mail.
    3
    MIT
  • A
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    A
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    A
    maintenance
    Live USPS, UPS, FedEx and DHL Express parcel rates from a US origin, domestic or to Canada, the UK, Germany and Australia, from a plain-words item description: no scale, no account, no API key. Also creates checkout links, reports checkout status, tracks parcels bought on smklog.com and serves a monthly US parcel price index.
    4
    5
    1
    MIT
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    Provides cryptographically signed, tamper-evident compute usage receipts via a Model Context Protocol server, exposing tools to record usage, verify receipts, list the ledger, and verify ledger integrity without requiring any account, API key, or single cloud provider.
    4
    4 npm
    Apache 2.0
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    quality
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    Hourly electricity grid carbon intensity (gCO2eq/kWh) for 45 zones across Europe, the US and Great Britain, computed from ENTSO-E, EIA and NESO generation data. Four read-only tools; every value carries its interval timestamp and how stale it is. No API key, no account.
    4
    MIT
  • A
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    A
    quality
    A
    maintenance
    Search, document and execute authenticated API calls across all your apps (Gmail, Slack, Stripe, Notion, GitHub, and more) through 4 universal tools whose context footprint stays constant no matter how many connections you add. Hosted remote server with OAuth at https://mcp.withone.ai/mcp, or run locally via npx @withone/mcp.
    4
    383 npm
    10
    MIT
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    Enables searching and retrieving classical music works, scores, and recordings from IMSLP via natural language, without requiring an API key or account. It respects IMSLP's crawl policies and reports copyright status per jurisdiction.
    7
    47 npm
    MIT
  • A
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    quality
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    Keyless crypto payments for AI agents. One MCP call turns any wallet address into a non-custodial crypto payment link or tip jar, no API key and no account, with funds settling straight to your wallet at a 0% platform fee (USDC/USDT, BTC, LTC, DASH, DOGE, ZCASH).
    3
    28 npm
    MIT