MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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.

Connect your agent

5939 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
Reevl — Korean Real Estate

Korean apartment data: official transaction prices, jeonse ratios, AI forecasts. 45,000+ complexes.

Real Estate & PropertyData access / search

Outdated check113 ms13 / 22
Commercial Property Today: CRE market data

CRE market data: Treasury, SOFR, bank CRE delinquency, CMBS, prices and cap rates, sourced.

Finance & CryptoData access / search

Outdated check115 ms13 / 22
ToolNav AI

Search AI tools, browse categories and read tool details with source links. Free, read-only access.

OtherData access / search

Responded116 ms13 / 22
Whatic IC Datasheets

IC datasheet search: parametric part finding, spec lookup, price comparison — grounded in real PDFs.

OtherData access / search

Outdated check116 ms13 / 22
dieAnalysten Adressshop – German B2B company addresses

German B2B company addresses: search industries, count target groups, get EUR prices, order.

OtherData access / search

Responded117 ms13 / 22
SpinHire iGaming Jobs

Live iGaming jobs — casino, betting, studios, affiliates — plus market data. No auth.

Finance & CryptoData access / search

Responded117 ms13 / 22
entityindex.ai

Verified hotels in Andorra for AI agents: search by area, spa, pets, ski-in, family; official links.

TravelData access / search

Responded118 ms13 / 22
Foxfind

Affiliate price routing for high-intent PC game purchases across authorized stores.

Marketing & SalesData access / search

Outdated check118 ms13 / 22
Sanctions & Tariff Lookup

Screen names on US, UN, UK and EU sanctions lists; US HTS codes and total duty by origin.

OtherData access / search

Responded119 ms13 / 22
obrotomierz open data

Polish savings bonds, retail bonds in 195 countries, EU bank account bonuses. Open data, CC BY 4.0.

E-commerceData access / search

Outdated check119 ms13 / 22
WoodRoar (US)

Search, filter and compare chainsaws in WoodRoar's catalogue, each with a link to its page.

OtherData access / search

Responded121 ms13 / 22
PPN Hub — public APIs over MCP

One MCP endpoint over 69 public PPN APIs: search_apis to discover, execute_api to call. Free tier.

Developer ToolsData access / search

Responded121 ms13 / 22
AlertaSubastas

Search Spain's public auctions (BOE, Social Security, tax agency, notaries) with full asset records.

Finance & CryptoData access / search

Responded121 ms13 / 22
Agentify — search engine for AI agents

Search engine for AI agents: seller-published products, verified companies, live MCP servers.

Developer ToolsData access / search

Responded121 ms13 / 22
Per Patient Day: SNF benchmarks and valuation math

Skilled nursing benchmarks by state from CMS cost reports, plus SNF valuation and DSCR math.

HealthcareData access / search

Outdated check121 ms13 / 22
TV Music Store

Search royalty-free cinematic and production music for videos, films, trailers, ads and games.

MediaData access / search

Responded122 ms13 / 22
Seller Toolbelt

Check and fix Amazon, eBay and Etsy product images, calculate marketplace fees, look up barcodes.

MediaData access / search

Responded123 ms13 / 22
Remotejobify

Search remote jobs by the country you live in, each with the line that proves you can apply.

OtherData access / search

Responded123 ms13 / 22
Outdated check123 ms13 / 22
StudentLoan.help: federal repayment plan calculator

Federal student loan repayment estimates: RAP, IBR, Standard, Tiered Standard, PSLF, refinance.

GovernmentData access / search

Outdated check123 ms13 / 22
Fuse rooms

Search Fuse's furnished, all inclusive student rooms in Budapest and Riga. Read only, no key.

EducationData access / search

Responded125 ms13 / 22
MortgageExplained Data

Indicative UK lender criteria by borrower scenario, and Land Registry house prices by region.

Real Estate & PropertyData access / search

Outdated check125 ms13 / 22
212medya Growth Check

Audit a public website for B2B marketing readiness and AI search visibility.

Marketing & SalesData access / search

Outdated check126 ms13 / 22
Geotone — Global News Signals

Live global news signals: ranked wire, story timelines, coverage volume/tone/surges. Free, no auth.

MediaData access / search

Outdated check126 ms13 / 22

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