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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5233 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
hangel

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

OtherOther

Outdated check3831 ms14 / 22
Pixly

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

OtherOther

Responded4382 ms14 / 22
D Fetcher

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

OtherOther

Responded6165 ms14 / 22
Flowsimp

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

OtherOther

Responded66 ms14 / 22
ReadingRate

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

OtherOther

Responded85 ms14 / 22
CostBench

Verified pricing, hidden costs, negotiation data, price changes & TCO for 3,390+ software products.

OtherOther

Responded155 ms14 / 22
designare.at Knowledge

Lesender Zugriff auf Profil, Projekte und Fachwissen von Michael Kanda (designare.at, Web & KI).

OtherOther

Responded458 ms14 / 22
Western Container Sales

Shipping-container sale and rental pricing, availability, delivery, and product discovery.

OtherOther

Responded1400 ms14 / 22
Aztec Energy

Dimensionnement de pompe à chaleur sur la consommation réelle, estimation des aides (France)

OtherOther

Outdated check39 ms13 / 22
Scanverity Resolution Rules

Polymarket resolution-rule research for approved customers; public discovery is separate.

OtherOther

Outdated check42 ms13 / 22
First Sale Scout

Playbooks and a 14-day checklist for founders winning their first paying customers.

OtherOther

Responded44 ms13 / 22
HaMitaperim · Tel Aviv tech meetups

Upcoming in-person tech meetups in Tel Aviv from hamitaperim.com. Free, read-only, updated daily.

OtherOther

Outdated check45 ms13 / 22
com.brainonbnb/lp-placement

PancakeSwap V3 fee tiers of a BSC token, free; tier and range plan paid, or free holding 1M $BOBAI.

OtherOther

Responded46 ms13 / 22
com.brainonbnb/yield-optimizer

Venus supply rates on BNB Chain, free; whether moving pays its gas paid, or free holding 1M $BOBAI.

OtherOther

Responded47 ms13 / 22
com.brainonbnb/rebalancer

PancakeSwap best route, free; a rebalance priced on real pools paid, or free holding 1M $BOBAI.

OtherOther

Responded48 ms13 / 22
Dr. Mais Vida

Explica exames de sangue em português: artigos, faixa do laudo e diretrizes médicas com fonte.

OtherOther

Outdated check48 ms13 / 22
Pauhu

European data products with cited sources. Annual bulk access: not open for online purchase yet.

OtherOther

Outdated check49 ms13 / 22
check.tattoo: tattoo size and placement guide

Tattoo size minimums, body-area comparison, line-spacing check and a pre-booking checklist.

OtherOther

Responded50 ms13 / 22
Clipping Daily

Live clipping pay rates per 1,000 views, an earnings calculator and clipping guides.

OtherOther

Outdated check50 ms13 / 22
UK Charging Solutions

UK business EV charging: council charger data, charge times, charger sizing, grants, host income.

OtherOther

Responded51 ms13 / 22
Localstreet

Local businesses, opening hours, events and noticeboards across London boroughs.

OtherOther

Responded51 ms13 / 22
FitMyCall — Answering Service Prices

Verified pricing for 21 answering services & AI receptionists, dated weekly. Missed-call ROI calc.

OtherOther

Outdated check51 ms13 / 22
dotsweep

Domain availability across 1,200+ TLDs, with renewal price, minimum term and eligibility

OtherOther

Outdated check51 ms13 / 22
org.heathy/nutrition

Nutrition for more than 1,100 plant foods from 30 national tables, plus GB/EU & US claim checking

OtherOther

Responded53 ms13 / 22

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