MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

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Remote MCP servers

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5356 servers

Ordered by checks passedClear filters
  • Responded14 / 22 checks passed

    USPS package barcodes, service type codes and mailing terms, each cited to its USPS source.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 2461 ms · Last checked

  • Outdated check14 / 22 checks passed

    Find car washes in France, check live slots, get exact prices and start a booking.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 2469 ms · Last checked

  • Responded14 / 22 checks passed

    Free read-only Israeli election, polling and dated CBS population data in four languages.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 2472 ms · Last checked

  • Responded14 / 22 checks passed

    日本の成人向け作品 (18歳以上) の出演者・作品検索。画像からの出演者判定はサイトで発行する認証コードが必要。

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 2635 ms · Last checked

  • Responded14 / 22 checks passed

    Licensed CA agency: GL, workers' comp, auto, bonds. Check appetite or send a quote request.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 2748 ms · Last checked

  • Responded14 / 22 checks passed

    hangel (Turkiye): NGOs, events, volunteering, open grants, donation-linked stores and products.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 3036 ms · Last checked

  • Responded14 / 22 checks passed

    Visitor insurance quotes for one traveler or an Atlas family, plus guides, FAQs and carrier links.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 3141 ms · Last checked

  • Responded14 / 22 checks passed

    Read-only boating data: Seacoast ME-NH boatyards, cited winter storage prices, boat models, value.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 3327 ms · Last checked

  • Responded14 / 22 checks passed

    Ask a sealed authority whether an action may proceed. Answers are deterministic and citable.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 3476 ms · Last checked

  • Responded14 / 22 checks passed

    Records what you're working on so Overlap can introduce you to someone two weeks ahead of you.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 3523 ms · Last checked

  • Outdated check14 / 22 checks passed

    Host and manage Minecraft servers, mods, worlds and backups on Pixly.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 4382 ms · Last checked

  • Responded14 / 22 checks passed

    Spain's contributions to world science, exploration and culture, rigorously sourced

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 4466 ms · Last checked

  • Outdated check14 / 22 checks passed

    Vitamin D synthesis calculator: sun position, UV, IU/min, time to dose, sunburn risk, daily window.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 6165 ms · Last checked

  • Responded14 / 22 checks passed

    Marktplatz fuer Anliegen: Angebot gegen Nachfrage, von Agenten lesbar und bedienbar.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 228 ms · Last checked

  • Responded14 / 22 checks passed

    Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 496 ms · Last checked

  • Responded14 / 22 checks passed

    Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 548 ms · Last checked

  • Responded14 / 22 checks passed

    Free website analyzer: score any public URL 0-100 across 8 quality dimensions. No auth.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 565 ms · Last checked

  • Responded14 / 22 checks passed

    Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 618 ms · Last checked

  • Outdated check14 / 22 checks passed

    Turn Mermaid or an indented outline into an editable flowchart link. Completely free, no API key.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 66 ms · Last checked

  • Outdated check14 / 22 checks passed

    Book difficulty, reading times and ranked lists, plus your reading log, quotes and clubs.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 85 ms · Last checked

Automated measurements. Not a rating. Unmeasured checks are not failures. How to read the evidence