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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5974 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
Findable

Public website audits and sourced SEO/AEO content drafts, ready for your review.

Marketing & SalesData access / search

Responded517 ms13 / 22
twitr.sh

X/Twitter reads, search, monitors and posting. Pay-per-call in USDC — no signup, no API keys.

Finance & CryptoData access / search

Responded517 ms13 / 22
UGC VZ Creator Search

Find real UGC creators in the DACH region: profiles, pricing, reach, outreach. No API key.

OtherData access / search

Responded518 ms13 / 22
Mansa African Markets

Live African stock market data — NGX, GSE, NSE, JSE, BRVM and 8 more. Prices, indices and movers.

Finance & CryptoData access / search

Outdated check520 ms13 / 22
Hadacart KR/US product search and purchase links

Search KR/US products, dated options and unit prices; original merchant affiliate purchase links.

Marketing & SalesData access / search

Responded521 ms13 / 22
BookResorts — hotel & resort booking

Live hotel and resort prices (taxes included) and secure booking links for travelers. Since 1993.

TravelData access / search

Responded521 ms13 / 22
Onhand

Free local shop search, no sign-in: addresses, hours, contacts and source-labelled offering details.

E-commerceData access / search

Responded523 ms13 / 22
MarketCheck API Docs

MarketCheck API docs for coding assistants: search, endpoint reference, plans. Free, no auth.

Developer ToolsData access / search

Responded524 ms13 / 22
OilPicker

Korean local-currency (지역화폐) discounts: fuel rates, effective prices, merchant search, deep links.

Finance & CryptoData access / search

Responded526 ms13 / 22
LC Mods

Search 140k+ GTA mods (SA, VC, III, IV, V) and install them with the free LC Mod Installer.

OtherData access / search

Responded529 ms13 / 22
Karma for AIs

Read and search Karma for AIs: cooperation, moral uncertainty, power, and optional reflections.

OtherData access / search

Responded532 ms13 / 22
Stock Market Data MCP

Real-time stock quotes, history, options chains, sector performance & screening for agents.

Finance & CryptoData access / search

Outdated check539 ms13 / 22
CitySignal AI

Live road, transit, weather, power and water signals for US cities, plus your own spots and routes.

Data & AnalyticsData access / search

Responded540 ms13 / 22
Meta Ad Library Spend MCP Demo by AdSpendSpy

Keyless demo: Meta Ad Library ads of one advertiser with estimated ad spend and top landing pages.

Marketing & SalesData access / search

Responded540 ms13 / 22
Printags shop

Prepare a cart of printed PVC, NFC and wood cards on the Printags shop; no account needed.

E-commerceData access / search

Outdated check541 ms13 / 22
Foo Guard Library

Search and read free, scanned AI agent skills and configs. Read-only, no account.

Developer ToolsData access / search

Responded543 ms13 / 22
dev.anatome/anatome

Log workouts and meals by telling your AI. 873 exercises, muscle diagrams, food lookup.

OtherData access / search

Responded544 ms13 / 22
PostThisDeal Handpicked Deals

Live deals picked by PostThisDeal's team: search, latest, details and status. No sign-in.

OtherData access / search

Responded544 ms13 / 22
Kompare travel search

Live prices on package holidays and niche trips from Danish travel agencies, with booking links.

TravelData access / search

Responded548 ms13 / 22
HortOS (United States)

Search US wholesale plant growers' live availability lists and price a whole plant list. Read-only.

OtherData access / search

Responded549 ms13 / 22
ViralCat

Schedule and publish social posts across platforms, with drafts, media uploads and analytics.

Data & AnalyticsData access / search

Responded551 ms13 / 22
Giornata Mondiale

Italian world days: search, calendar dates, sources, published content and verification status.

ProductivityData access / search

Responded556 ms13 / 22
Bluerails Hotels

Live hotel search and booking for AI agents in DACH, the UK and 10 US cities.

TravelData access / search

Responded558 ms13 / 22
DeviceLink

Read and search folders on your own computer with explicit consent. Files are never uploaded.

OtherData access / search

Responded563 ms13 / 22

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