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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5041 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
kiddinglab

Search DC/MD/VA kids' camps: dates, prices, ages, live availability, checkout links. Parents pay.

Finance & CryptoPayments & trading

Responded1072 ms14 / 22
io.github.cyanheads/inaturalist-mcp-server

Search iNaturalist sightings, identification threads, phenology, and look-alike species.

Developer ToolsCode & DevOps

Outdated check1074 ms14 / 22
io.github.cyanheads/eurostat-mcp-server

Search and query the Eurostat catalogue — EU economy, demography, trade, and NUTS regional data.

Developer ToolsCode & DevOps

Outdated check1074 ms14 / 22
unesco-heritage-mcp-server

Search UNESCO World Heritage sites, intangible heritage, biosphere reserves, and Global Geoparks.

Developer ToolsCode & DevOps

Outdated check1074 ms14 / 22
Christian Tech Jobs

Search current job listings on Christian Tech Jobs and read each one.

OtherData access / search

Responded1084 ms14 / 22
A1 Synthetic Oil (independent AMSOIL dealer)

AMSOIL catalog search, account options, and dealer-referral shopping links from A1 Synthetic Oil

E-commerceData access / search

Responded1084 ms14 / 22
search-mcp

Web search and clean-text page fetch for AI agents, with SSRF protection.

Developer ToolsData access / search

Responded1086 ms14 / 22
io.github.cyanheads/college-scorecard-mcp-server

Search, compare, and analyze U.S. college data — costs, earnings, programs, and outcomes.

Developer ToolsCode & DevOps

Outdated check1086 ms14 / 22
Daylily Catalog

Search daylily catalogs and cultivar traits. Manage your grower catalog with scoped OAuth.

Developer ToolsCode & DevOps

Outdated check1096 ms14 / 22
Harness Atlas

Search 650+ wire-harness & cable-assembly manufacturers and production & test equipment suppliers.

Developer ToolsCode & DevOps

Outdated check1099 ms14 / 22
io.github.cyanheads/pubmed-mcp-server

Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms.

Developer ToolsCode & DevOps

Outdated check1099 ms14 / 22
Triremes

Search real problems people have and business websites with poor SEO/AEO. Read-only, free.

Marketing & SalesData access / search

Responded1108 ms14 / 22
AgentIndex

Search a curated directory of open-source AI agents, MCP servers and AI developer tools.

Developer ToolsData access / search

Responded1116 ms14 / 22
MANDA

Search Japan's M&A marketplace MANDA - public business-for-sale listings (read-only, no auth)

OtherData access / search

Responded1118 ms14 / 22
2b2t Atlas

Search 2b2t bases, WDLs, signs, saved inventories, rare blocks, mobs, map art and NoCom history.

Developer ToolsCode & DevOps

Outdated check1123 ms14 / 22
io.github.cyanheads/us-lobbying-mcp-server

Search US lobbying disclosures and foreign-agent registrations via MCP.

Developer ToolsCode & DevOps

Outdated check1128 ms14 / 22
io.github.cyanheads/courtlistener-mcp-server

Search US court opinions, federal dockets, judges, citations, and oral arguments via CourtListener.

LegalCode & DevOps

Outdated check1128 ms14 / 22
Tu Lugar

Search and manage Paraguay & LatAm real estate from any AI assistant.

Real Estate & PropertyData access / search

Outdated check1134 ms14 / 22
Foundplay for creators

For browser game makers: check a game, free listing link, Boost plans, checkout links. Read-only.

Finance & CryptoPayments & trading

Responded1137 ms14 / 22
com.advisorfinder/mcp

Search and vet SEC-registered financial advisors: profiles, disclosures, firm fees, credentials.

Developer ToolsData access / search

Responded1146 ms14 / 22
ManyLives

Web search, point-in-time crypto market data, verified strategy track records and 160+ agent tools.

Finance & CryptoData access / search

Responded1147 ms14 / 22
PV Solaire Énergie — Estimation solaire et devis (France)

Rooftop solar potential, RGE installer search and quote requests. France only, no API key.

OtherData access / search

Responded1158 ms14 / 22
com.kitsdeals/deals

Curated, human-reviewed deal feed for AI agents — live deal search + price watches. No auth.

OtherData access / search

Responded1161 ms14 / 22
$199 Domains marketplace

Search and price-check brandable and keyword domains for sale at fixed prices of $199 or less.

OtherData access / search

Responded1168 ms14 / 22

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