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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7606 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
MCPFax Public-Data Utility API

One public fact when you have no API key: where, what time, what rate. 31 lookups.

OtherData access / search

Responded117 ms14 / 22
Hostamir

Web hosting, VPS and .bd domains in Bangladesh: plans, BDT prices and domain availability.

OtherOther

Responded117 ms14 / 22
bissl - menus in Austria

Dishes, prices, diets, allergens and this week's lunch menus of places to eat in Austria.

OtherOther

Responded117 ms14 / 22
NJ Landscape Pros — book landscaping in North Jersey

Book landscaping in North Jersey, NJ: prices, service area by ZIP, free callback from a local pro.

OtherOther

Responded118 ms14 / 22
The Deploy Log

AI deployments that shipped and are available now, each sourced to the publisher's own page.

OtherCode & DevOps

Responded118 ms14 / 22
Austin Pool Guy — book pool service in Austin

Book pool service in Austin, TX: prices, service area by ZIP, free callback from a local pro.

OtherOther

Responded118 ms14 / 22
Tachtien

Look up the Dutch word tachtien (uncountably many) and rewrite vague amounts as tachtien.

OtherData access / search

Responded118 ms14 / 22
Fynvo Firmenverzeichnis

Deutsche Unternehmen nach Leistung, Zertifikat und Umkreis finden, mit Quelle je Angabe.

OtherOther

Responded119 ms14 / 22
iParts Estonia Parts Catalogue

Read-only iParts Estonia auto parts catalogue: numbers, vehicles, categories, fitment, offers, oils.

OtherOther

Responded120 ms14 / 22
GraphMake

Turn data into infographics (PNG/SVG): 90+ templates, or KPI cards, charts, timelines and maps.

OtherOther

Responded120 ms14 / 22
FortSu DE

Running shoe prices in Germany (fortsu.de): search, specs and minimum price history.

OtherData access / search

Responded121 ms14 / 22
Faceabot Earthquakes

Recent earthquakes worldwide or near a place, from USGS. Free, no key.

OtherOther

Responded121 ms14 / 22
Fliprofit reseller fee calculator

Exact US seller fees, payout and profit for eBay, Poshmark, Mercari, Etsy, Amazon and 7 more.

OtherOther

Responded121 ms14 / 22
Creadal

Packaging design with 3D mockups and print-ready dieline PDFs

OtherOther

Responded121 ms14 / 22
tripfix Reisekosten-Pauschalen

Deutsche Reisekosten-Pauschalen 2026: Verpflegung Inland und BMF-Auslandssätze, km-Pauschale.

OtherOther

Responded122 ms14 / 22
GariDeal

Used car market prices in Spain: what a model and year is worth, by province, and cars for sale.

OtherOther

Responded122 ms14 / 22
Cesure

Write, edit, transpose and play guitar tabs and staff notation in Cesure.

OtherOther

Responded122 ms14 / 22
AIDG Answer Feed

Validate authored product facts and export reviewed Merchant Center supplemental TSV files.

OtherAI / LLM tooling

Responded122 ms14 / 22
Tremor Watch

How many market relationships stopped behaving this week: the Antevo Tremor Index, since 1997.

OtherOther

Outdated check122 ms14 / 22
Fourward AI visibility tools

Score any website's AI search visibility out of 100 and see which of 20 AI crawlers can read it.

OtherBrowser & web scraping

Responded123 ms14 / 22
Paper Plane Post

Create and send an AI-illustrated postcard anywhere in the world

OtherOther

Outdated check123 ms14 / 22
Tempe Pool Guy — book pool service in Tempe

Book pool service in Tempe, AZ: prices, service area by ZIP, free callback from a local pro.

OtherOther

Responded124 ms14 / 22
Goatcade

Real, free browser games that open in the chat: city builder, racer, horde shooter, deckbuilder.

OtherOther

Responded124 ms14 / 22
Sell My Company Data

Estimate what your company's operational data is worth to AI labs. Counts only, never content.

OtherOther

Responded125 ms14 / 22

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