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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438 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
Outdated check99 ms12 / 22
Black Label Real Estate Website MCP

Search and read public Black Label Real Estate pages with source URLs.

Real Estate & PropertyData access / search

Outdated check110 ms12 / 22
NSW Planning Data (x402)

NSW DAs, CDCs and property planning reports: zoning, height, FSR, nearby DAs. Pay per call via x402.

Real Estate & PropertyCode & DevOps

Outdated check113 ms12 / 22
InfoGrunt

Check a land plot in Poland: zoning plan, flood risk, utilities, local land prices. No account.

Real Estate & PropertyData access / search

Outdated check129 ms12 / 22
UK Property Data

UK property data — Land Registry comps, EPC, Rightmove, rental yields, stamp duty, Companies House

Real Estate & PropertyCode & DevOps

Outdated check149 ms12 / 22
SiteCheck Jobs & Property

112 pay-per-call agent tools: job market and real estate data tools. x402

Real Estate & PropertyCode & DevOps

Outdated check154 ms12 / 22
Registers

French public registers: companies (SIRENE, BODACC) and real estate (cadastre, DVF, DPE, risks).

Real Estate & PropertyData access / search

Outdated check169 ms12 / 22
Huisly

Dutch rental and for-sale listings, CBS area figures and Huisly's housing guides, read-only.

Real Estate & PropertyData access / search

Outdated check188 ms12 / 22
Aeralas Maps

Print-ready annotated aerial maps of US addresses for real estate and engineering, paid via x402.

Real Estate & PropertyPayments & trading

Outdated check190 ms12 / 22
Conversion Ledger (RAD)

HUD RAD conversions, housing authority records, 2026 RAD rents, program facts and debt sizing.

Real Estate & PropertyData access / search

Outdated check200 ms12 / 22
new.estate

Search real estate listings for sale or rent in many countries, published on new.estate.

Real Estate & PropertyData access / search

Outdated check205 ms12 / 22
Contract Lily

UK tenancy and employment rule checks: deposits, notice, rent increases, holiday and minimum wage.

Real Estate & PropertyData access / search

Outdated check233 ms12 / 22
Umarelli

Building records for New York City and Jersey City: permits, taxes, tax breaks and zoning.

Real Estate & PropertyData access / search

Outdated check278 ms12 / 22
Germandex Student Guides

Read-only student guides to Germany: ten cities, housing, banking, jobs and everyday life.

Real Estate & PropertyData access / search

Outdated check292 ms12 / 22
Tendeck: AI-run real estate CRM + broker recruiting

Free AI-run real estate CRM. Brokers: Florida recruiting lists, County Watch, auto email, BYO MLS.

Real Estate & PropertyCommunication & messaging

Outdated check325 ms12 / 22
CPF Mortgage Home Values

U.S. home values, comparable sales, rent estimates, forecasts and PDF reports from CPF Mortgage.

Real Estate & PropertyCode & DevOps

Outdated check349 ms12 / 22
Capucine — ScoreCredit

French mortgage tools: HCSF capacity, dated rates, usury caps, ORIAS 26000195.

Real Estate & PropertyData access / search

Outdated check364 ms12 / 22
Wholesale Heaven

AI real estate assistant: listings, tour scheduling, lead nurturing, market analysis, and CMA report

Real Estate & PropertyData access / search

Outdated check408 ms12 / 22
Dar — free real-estate tools

Real-estate AI website builder, commission calculator, lease, FAL licence check, listing writer.

Real Estate & PropertyData access / search

Outdated check420 ms12 / 22
Florida Home Search by U.S. Prime Realty

Search Florida properties and new construction for sale with U.S. Prime Realty.

Real Estate & PropertyData access / search

Outdated check440 ms12 / 22
Domly — rentals in Bulgaria

Search long-term rentals in Bulgaria, get rent prices by city and district, contact a local realtor.

Real Estate & PropertyData access / search

Outdated check454 ms12 / 22
SendPay free business calculators

Free VAT, card fee, loan, mortgage, margin, ROI and break-even calculators plus IBAN/SWIFT checks

Real Estate & PropertyData access / search

Outdated check533 ms12 / 22
Outdated check636 ms12 / 22
Japan Real Estate Transaction Prices (MLIT)

What real estate transaction prices has MLIT published for this Japanese municipality? As published.

Real Estate & PropertyCode & DevOps

Outdated check672 ms12 / 22

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