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"Free and open-source GPS without an API" matching MCP servers:

  • email-validator-api

    lazymac2x
    F
    license
    -
    quality
    D
    maintenance
    Comprehensive email validation MCP server that checks syntax, MX records, disposable domains, role-based accounts, SPF/DKIM, typo suggestions, and risk scoring.

  • mailtype-api

    GSterlingPress
    F
    license
    -
    quality
    B
    maintenance
    MCP server for inspecting email domains and addresses, providing objective domain-level email infrastructure answers such as MX, SPF, DMARC, MTA-STS, and disposable-domain evidence.

  • yahoo-mail-mcp

    th-an
    A
    license
    -
    quality
    B
    maintenance
    MCP server for Yahoo Mail over IMAP+SMTP that enables AI assistants to manage emails fully—listing, reading, searching, threading, flagging, moving, archiving, handling attachments, and sending/reply/forward/draft—using an app-specific password.
    MIT
  • Sendmux Email Inbox API + Sending by Sendmux

    Sendmux Email Inbox API +official

    Sendmux
    A
    license
    A
    quality
    A
    maintenance
    Sendmux is an email inbox API and email API for AI agents. Use this MCP server to let authorised agents work with Sendmux mailboxes, inbound email, clean JSON parsing, webhooks, outbound sending, provider routing, logs, billing, and team controls.
    30
    78
    MIT

  • SandMail — Disposable Email

    brobin002
    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
    10
    MIT

  • Google Workspace MCP Server

    risvan1605
    A
    license
    A
    quality
    B
    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

  • Samotpravil MCP

    dkanster
    A
    license
    D
    quality
    C
    maintenance
    MCP server wrapping Samotpravil API documentation, providing tools to search for methods, parameters, and examples, with optional proxy to the live API.
    58
    92
    MIT

  • Email Finder API

    Br0ski777
    A
    license
    -
    quality
    B
    maintenance
    Find professional email addresses from name + company domain. Tests 15+ patterns against MX records with confidence scoring, with pay-per-call via x402.
    MIT

  • Email Deliverability Audit API

    Br0ski777
    A
    license
    -
    quality
    B
    maintenance
    Audits email deliverability configuration for a domain, checking SPF, DKIM, DMARC, and MX records, returning a score and recommendations.
    MIT
  • Cakemail API MCP Server by cakemail

    Cakemail API MCP Serverofficial

    cakemail
    F
    license
    -
    quality
    D
    maintenance
    Enables AI assistants to browse, inspect, and call the Cakemail API via dynamically loaded OpenAPI spec.

  • Gmail + SAP MCP Server

    suryanandan1
    F
    license
    -
    quality
    C
    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.
  • plunk-mcp by ignytehq

    plunk-mcpofficial

    ignytehq
    A
    license
    A
    quality
    C
    maintenance
    A Model Context Protocol server for Plunk, the open-source self-hosted email platform. Provides 84 tools for transactional email, contacts, campaigns, segments, templates, workflows, events, and analytics through the Plunk API.
    11
    24
    2
    MIT

  • ox-mcp

    Rheopyrin
    A
    license
    B
    quality
    B
    maintenance
    MCP server for Open-Xchange & standards-based mail: email (IMAP/SMTP), Sieve filters, CalDAV calendar, CardDAV contacts, free/busy.
    12
    33
    53
    MIT

  • iCloud MCP

    jerichosequitin
    A
    license
    -
    quality
    B
    maintenance
    An open-source project for a local iCloud Mail MCP integration. Currently provides only contribution and quality foundations, with Apple Mail access and MCP features deferred.
    52
    MIT

  • gmail-mcp

    elvisoliveira
    A
    license
    -
    quality
    C
    maintenance
    Exposes Gmail inbox actions (list, archive, label) as MCP tools via a browser extension and local bridge, without requiring the Gmail API or OAuth.
    180
    MIT

  • NornWeave

    DataCovey
    A
    license
    -
    quality
    A
    maintenance
    Open-source, self-hosted Inbox-as-a-Service API for AI agents. It enables agents to manage email inboxes, send/receive emails, search messages, and wait for replies via REST or MCP.
    27
    Apache 2.0

  • Agent Email

    UseJunior
    A
    license
    -
    quality
    A
    maintenance
    An open-source MCP server that provides AI agents with secure access to read, search, and manage emails via Microsoft 365 and Gmail. It features security-first defaults like recipient allowlists and markdown content conversion to facilitate safe agent interaction with mailboxes.
    4
    Apache 2.0