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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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"Tools to Automate Sales Outreach Emails" matching MCP servers:

  • astrodynamics-mcp

    astro-tools
    A
    license
    Not graded
    quality
    A
    maintenance
    An MCP server that equips LLM clients with authoritative astrodynamics tools including TLE/SGP4 propagation, Lambert solving, ground-station access, time-scale and coordinate-frame conversions, and more.
    1
    MIT

  • NASA MCP Server

    BACH-AI-Tools
    A
    license
    B
    quality
    D
    maintenance
    Provides standardized access to 20+ NASA data sources including astronomy pictures, Mars rover photos, near-Earth objects, satellite imagery, space weather, and planetary data through a unified interface optimized for AI consumption.
    23
    12
    ISC

  • propagation-mcp

    rmp
    A
    license
    A
    quality
    A
    maintenance
    MCP server that exposes NOAA/SWPC HF band-condition and space-weather tools, providing real-time solar indices, band conditions, forecasts, alerts, solar wind, and X-ray flux for ham radio operators.
    6
    0
    MIT

  • mavlink-mcp

    hieutachi
    A
    license
    A
    quality
    C
    maintenance
    Connects AI agents to MAVLink drones (PX4, ArduPilot) via a capability layer with safety guardrails, enabling telemetry, flight control, and mission management through natural language.
    12
    1
    MIT

  • SkyQuery

    KarthikSubramanian07
    A
    license
    A
    quality
    B
    maintenance
    A local, open-source MCP server that wraps astronomy data services (SIMBAD, JPL Horizons, VizieR, etc.) behind a conversational interface, enabling AI assistants to answer astronomy questions with real, typed, and provenance-tracked data.
    13
    MIT

  • dronelytics

    markpdxt
    A
    license
    A
    quality
    C
    maintenance
    US drone airspace intelligence and mission planning. 24 MCP tools: check airspace restrictions across 11 FAA data layers, plan grid/orbit/corridor surveys, validate Part 107 compliance, generate pre-flight briefings, and export to KML/GPX/QGC/Litchi/WPML.
    25
    3
    MIT

  • EMS MCP Server

    mattsq
    A
    license
    A
    quality
    C
    maintenance
    Provides LLM access to the Event Monitoring System (EMS) API for comprehensive flight data analytics and monitoring. It enables users to query flight records, retrieve time-series analytics, and explore aircraft assets or database hierarchies.
    10
    MIT

  • satellite-mcp

    badchars
    A
    license
    B
    quality
    B
    maintenance
    Full-spectrum GEOINT server with 171 tools covering satellite imagery, aircraft tracking, maritime surveillance, military intelligence, conflict monitoring, environmental analysis, critical infrastructure, sanctions compliance, and cyber-geo intelligence from open-source data.
    100
    39
    2
    MIT

  • Yamcs MCP Server

    PaulMRamirez
    A
    license
    B
    quality
    D
    maintenance
    Enables AI assistants to interact with Yamcs mission control systems through natural language, providing tools and resources for telemetry, commands, links, storage, instances, and alarms.
    34
    3
    MIT

  • viznoir

    kimimgo
    A
    license
    B
    quality
    A
    maintenance
    Viznoir empowers AI agents to directly analyze and visualize complex 3D scientific and engineering data in cinematic resolution using a fully headless VTK engine. It enables LLMs to seamlessly execute advanced physical analysis, 3D rendering, and generate publication-ready animations purely through natural language commands.
    23
    18
    MIT