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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5788 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
Arzbin MCP Server

Live Iran exchange rates, gold, crypto, and Toman market data for AI agents.

Finance & CryptoData access / search

Responded275 ms15 / 22
Agent Stack Directory

Search, inspect and compare infrastructure tools for AI agents from a checked directory.

Developer ToolsData access / search

Responded276 ms15 / 22
Ahel

Data and tools for your AI agent: company, people, SEO, social and EU register data. Pay per call.

Marketing & SalesData access / search

Responded291 ms15 / 22
Car Rental Brain

Real cost of car hire at 120+ airports: second driver, cover, deposits, debit cards, desk hours.

TravelData access / search

Responded295 ms15 / 22
UnoRouter

Search 200+ UnoRouter models (most free), check pricing, and chat through one key

Developer ToolsData access / search

Responded296 ms15 / 22
Padel Expert Lab

Padel racket comparator for France and Belgium, in French: search, brand specs, profile-based picks.

OtherData access / search

Responded307 ms15 / 22
NebenkostenPro

German utility costs (Nebenkosten): city data, property tax, housing benefit, deadlines, bill check

Real Estate & PropertyData access / search

Responded310 ms15 / 22
Index Agentica

Search a curated directory of agent tools, MCP servers, APIs, protocols and skills. No auth.

Developer ToolsData access / search

Responded320 ms15 / 22
Live weather and air quality (GAIA)

Weather, air quality and nearest live sensors anywhere, each with a signed receipt. Free, no key.

Data & AnalyticsData access / search

Responded325 ms15 / 22
MCP security checks — WARDEN and HISTOR

Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.

Developer ToolsData access / search

Responded327 ms15 / 22
Findabis

Public directory of UK medical cannabis clinics, pharmacies, products and strains.

HealthcareData access / search

Responded344 ms15 / 22
fysio.care clinic discovery

Discover Swedish MSK clinics on fysio.care: search clinics, services, and open appointment times.

HealthcareData access / search

Responded353 ms15 / 22
BinaSmart

Ethiopia: Addis rides, jobs, tenders, hotels, health, homes, cars, news and government guides

GovernmentData access / search

Responded364 ms15 / 22
Neuronto ARD Registry: Agentic Resource Discovery (ARD) Index

Agent Resource Discovery (ARD, IETF draft) registry: search every ARD registry + verified MCP tools

Developer ToolsData access / search

Responded369 ms15 / 22
DaedalMap Reverse Geocoding (coordinates to loc_id)

Convert WGS84 coordinates to the latest available administrative loc_id chain.

Data & AnalyticsData access / search

Responded370 ms15 / 22
4dayweek.io Jobs

Search reduced-hours jobs and employers: 4-day weeks, 9-day fortnights, half-day Fridays and more.

OtherData access / search

Responded375 ms15 / 22
ViaFrei

The German Real-Time Mobility Context Platform for AI: traffic, trains, charging, parking, weather.

Data & AnalyticsData access / search

Responded380 ms15 / 22
Analytics Legends — SAP AI & Analytics MCP Server

SAP AI & analytics market data for agents: SAP firms, day rates, jobs, Joule & BDC news

Finance & CryptoData access / search

Responded382 ms15 / 22
Add to CRM

Find work contact details and add people and companies to your own CRM.

Marketing & SalesData access / search

Responded387 ms15 / 22
Vibes-Coded Agent Tools

Web search, page-to-markdown, memory, leases and proof for agents. x402, no signup.

Developer ToolsData access / search

Responded406 ms15 / 22
Guitar Practice Routine App — Chord Charts

Look up a guitar chord by name and get a text chord diagram. 12,708 standard-tuning names.

Developer ToolsData access / search

Responded408 ms15 / 22
SkyAccess

Search 5,000+ live empty leg flights, get charter estimates and booking links. Free, no API key.

TravelData access / search

Responded413 ms15 / 22
AgentsCPA

Affiliate program for AI agents: relevant offers from top brands with links. Earn per purchase.

Marketing & SalesData access / search

Responded413 ms15 / 22
WebinarIgnition

Webinar leads and revenue from several WordPress sites, in one chat.

Marketing & SalesData access / search

Responded419 ms15 / 22

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