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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1440 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
GeoSpark

Verifiable geospatial tools: distances, topology, isochrones, Overture Maps, with sources.

Data & AnalyticsCode & DevOps

Outdated check1695 ms15 / 22
Election Odds Desk

Kalshi odds for 2026 Senate, governor and House races, the Senate map, and the next Fed meeting.

ProductivityFile & docs

Outdated check1962 ms15 / 22
Weather Markets Edge Desk

Kalshi weather markets: daily-high board beside the NWS forecast, live edges, EV, Kelly, base rates.

Data & AnalyticsData access / search

Outdated check2047 ms15 / 22
Cashew

Live Singapore mortgage rates, package recommendations and home-loan calculators.

Real Estate & PropertyData access / search

Responded2200 ms15 / 22
Pro Flight Search Airport Delays

Read-only airport delay, weather, and 24h forecast tools for AI assistants. Airport-level only.

TravelData access / search

Outdated check2299 ms15 / 22
Aviation & Space Weather Data (Tanod)

Flight and sky conditions for agents, from METAR/TAF and airports to aurora and satellite passes.

TravelData access / search

Outdated check2341 ms15 / 22
Eigenheim Invest – Berlin Real Estate Market

Live Berlin property prices per m², rental yields, land values 2026 and listings. Read-only.

Real Estate & PropertyCode & DevOps

Outdated check2447 ms15 / 22
Departi – Travel Compliance & Curated Booking

Travel-compliance intelligence and curated booking for digital nomads and long-stay travellers.

TravelData access / search

Outdated check6155 ms15 / 22
Dubai Data — Dubai real estate statistics

Dubai property prices, AED/sqft, sales, rents, yields and projects from DLD registered transactions.

Real Estate & PropertyData access / search

Outdated check35 ms14 / 22
Open To Close MCP by usefulapi

Review Open To Close properties and transaction records; add contacts and property notes.

ProductivityFile & docs

Responded56 ms14 / 22
Quarterwise MCP by usefulapi

Read properties, HMRC categories and transactions; add income and expenses in Quarterwise.

Developer ToolsCode & DevOps

Responded58 ms14 / 22
Hostfully MCP by usefulapi

Check properties, calendars, leads, quotes, guests and messages in Hostfully, and send replies.

Marketing & SalesData access / search

Responded60 ms14 / 22
FlightFix

EU261/UK261 flight compensation check, rights and claim letters. Free.

TravelCode & DevOps

Outdated check65 ms14 / 22
io.github.flowzap-xyz/flowzap

Create workflow, sequence, architecture, and mind map diagrams via AI assistants.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
UNPKG

Live npm and UNPKG data for AI agents: resolution, audits, import maps, malware/CVE checks.

SecurityCode & DevOps

Responded83 ms14 / 22
io.github.foxdavidson/property-mortgage-mcp

UK mortgage calculators: stamp duty, MCOB 3A HNW qualification, and bridging loan cost.

Real Estate & PropertyCode & DevOps

Outdated check83 ms14 / 22
BlinkCodes catalog

Read-only catalog of gift cards, service top-ups and travel eSIMs sold by BlinkCodes.

TravelData access / search

Outdated check87 ms14 / 22
io.github.fdcommercial/property-finance-mcp

UK property finance: bridging cost, dev appraisal, BTL stress test, stamp duty (SDLT/LBTT/LTT).

Developer ToolsCode & DevOps

Outdated check87 ms14 / 22
com.skipshit/mcp

People and property search for Claude and ChatGPT. Phones, emails, addresses, relatives, properties.

ProductivityCommunication & messaging

Outdated check88 ms14 / 22
McpStamp Per Diem

Travel allowances from bundled Polish, HMRC and GSA rate tables, with partial days and meals.

TravelCode & DevOps

Outdated check89 ms14 / 22
Quartermaster eSIM

Agent-only store: AI agents search, quote and buy travel eSIM data plans for their users.

TravelCode & DevOps

Outdated check123 ms14 / 22
Agent Vending Factory

Pay-per-call MCP tools via x402 USDC: ZAR prices, data extraction, Python sandbox, SA flights.

Finance & CryptoPayments & trading

Responded131 ms14 / 22
German Real Estate Depreciation & Restnutzungsdauer

German property depreciation (AfA), Restnutzungsdauer, Kaufpreisaufteilung & appraisals via AfAMax

Real Estate & PropertyData access / search

Outdated check135 ms14 / 22
Propertyware MCP by usefulapi

Read Propertyware properties, leases and work orders; add maintenance tasks and comments.

Developer ToolsCode & DevOps

Responded142 ms14 / 22

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