MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

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

Read-only probes

DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

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7642 servers

Ordered by checks passedClear filters
Dated server measurements. The status describes the last probe or a listed authentication requirement. Checks that have not been measured are not failures. Open a server to inspect the evidence.
Server / capabilityLast probeMedian latencyChecks passedLast checked
Spelling Bee Hive

Spelling bee words: spellings, pronunciations, definitions, practice quizzes and winning words.

OtherOther

Responded489 ms14 / 22
Sarao

Free, open, in-person AI meetups in Spain: search by city, date and topic. Read-only, no key.

OtherData access / search

Responded489 ms14 / 22
Elliott Wave Atlas

Daily Elliott Wave counts for 100 markets: targets, invalidation levels, time windows.

OtherOther

Responded490 ms14 / 22
PermitStack

U.S. building permits, permit histories by address and contractors from city and county records.

OtherOther

Responded491 ms14 / 22
EAN Check barcode tools

GS1 check digits, code identification, UPC-E and ISBN conversion, GTIN repair and barcodes.

OtherOther

Responded491 ms14 / 22
ConferenceDB

Which companies sponsor and exhibit at conferences, with dates and published sponsor packages.

OtherOther

Responded492 ms14 / 22
Rooms by Aurmada

Multiplayer AI rooms: bring your AI (Claude, ChatGPT, Cursor) into one shared room with your team.

OtherAI / LLM tooling

Responded493 ms14 / 22
Mediawork

Search Mediawork's directory of post-production and distribution vendors, plus FAQ and plans.

OtherData access / search

Responded493 ms14 / 22
Rent-a-Skip UK skip hire

Indicative UK skip hire prices by town, council skip permit rules and skip size recommendations.

OtherOther

Responded495 ms14 / 22
SKUit Network & Security Catalog

AI helper for choosing and speccing network & security products from Cisco, Arista, Juniper and more

OtherOther

Responded495 ms14 / 22
Macfax

Identify any Apple serial and read its device record, plus used-Mac prices, listings and checks.

OtherOther

Outdated check495 ms14 / 22
NetArz FX Rates

Iranian rial/toman exchange rates (~30 currencies), conversion, history and gold. Free tier, no key.

OtherOther

Responded496 ms14 / 22
12 Chinese Zodiac Signs

Chinese zodiac animal and element by birth date, sign guides, years, matches and daily readings.

OtherOther

Responded497 ms14 / 22
Agentic Kingdoms

Play a live strategy MMO as a labelled player beside people: build, ally, fight for the Palace.

OtherOther

Responded497 ms14 / 22
ExitValue.ai M&A Multiples

Median EV/EBITDA and EV/Revenue multiples by industry and deal size from real M&A transactions.

OtherOther

Responded497 ms14 / 22
Susman Insurance Agency quote requests

Request auto, home, renters, condo, life, earthquake, flood and other insurance quotes in California

OtherOther

Responded499 ms14 / 22
Cosec

Indicative UAE Employer of Record estimates and Cosec's published prices. Not binding quotes.

OtherOther

Responded500 ms14 / 22
Quantlix public content

Search and read published Quantlix services, company information and insights.

OtherData access / search

Outdated check500 ms14 / 22
Mane

Find a barber, stylist or esthetician who has opted in on Mane and get a prefilled booking link.

OtherOther

Responded501 ms14 / 22
Advisors AI — Route a Store Need to a Service

Describe a store's problem: get the matching service, its fixed price, and a request link.

OtherOther

Responded501 ms14 / 22
app.applybolt/applybolt

Search 200k+ live jobs and internships. Filter remote, salary, H-1B, then auto-apply on ApplyBolt.

OtherData access / search

Responded502 ms14 / 22
Docs MD — Markdown Share

Share markdown as public links from your AI assistant — expiring or permanent, no API key.

OtherFile & docs

Outdated check502 ms14 / 22
Get Chinese Astrology

BaZi, zodiac year, compatibility, five elements, Kua, I Ching, Zi Wei and Flying Stars charts.

OtherOther

Responded505 ms14 / 22
com.siftivo/siftivo

Book recommendations from your reading history, plus your shelves, ratings and series order.

OtherOther

Responded506 ms14 / 22

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