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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5068 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
Responded1005 ms13 / 22
org.tickets4pets/events

Search 190k+ US live events; every ticket bought funds animal-shelter supplies at no extra cost.

OtherData access / search

Responded1007 ms13 / 22
Suparelay

International calls from your AI agent: price per minute and a Call link to the browser dialer.

OtherAI / LLM tooling

Responded1023 ms13 / 22
AssessAll Assessment Catalogue

Search AssessAll's assessment catalogue, free practice tests and guides, with INR and USD prices.

OtherData access / search

Responded1039 ms13 / 22
Shruti Kaushik: Founder GTM Research

Founder go-to-market guides, direct answers and sourced LinkedIn, Reddit and AI search statistics.

Data & AnalyticsData access / search

Responded1046 ms13 / 22
Global Metro Power Rankings

Query 4,300+ ranked metros across sixteen dimensions: profiles, search, and head-to-head comparisons

OtherData access / search

Responded1057 ms13 / 22
Gravity AI UI

Search public Gravity AI UI drafts and generate Gravity UI interface payloads.

OtherData access / search

Responded1057 ms13 / 22
Sorted MCP by usefulapi

Register, update and search shipments; read tracking events and states in Sorted.

Developer ToolsData access / search

Responded1060 ms13 / 22
Hipa.ai Clinical Trials

Search recruiting US clinical trials by city, condition, phase and patient eligibility.

HealthcareData access / search

Responded1093 ms13 / 22
K-Beauty Agent Commons

Public K-beauty catalog, product search, and latest-offers tools with canonical product facts.

Developer ToolsData access / search

Responded1114 ms13 / 22
io.github.Mouthfully/zwitchy-store

Travel eSIM catalog: search plans, check availability, and get exact quotes with checkout links.

Finance & CryptoPayments & trading

Responded1118 ms13 / 22
Lordevo Agent Directory

Search a directory of agent-callable services, incl. x402 pay-per-call APIs on Base.

Finance & CryptoData access / search

Responded1154 ms13 / 22
Createdby.you

Search and design Createdby.you wallpaper, also from your own image; preview, quote and basket link.

MediaData access / search

Responded1155 ms13 / 22
Nalpeiron Docs

Search and browse Nalpeiron product documentation (Zentitle2, ZenGain, ZenMeter, EUP) via GitBook.

Developer ToolsFile & docs

Responded1159 ms13 / 22
FBA Prep Finder

Search verified Amazon FBA prep centers in the US, UK, Germany and Canada. Read-only, no auth.

OtherData access / search

Responded1175 ms13 / 22
fojin — Buddhist Canon Tools

Buddhist canon tools: search, passages, cross-canon parallels, dictionaries — all URN-cited.

Developer ToolsData access / search

Responded1177 ms13 / 22
travel.kismet/mcp-server

Semantic hotel search with real-time availability and price comparison for Kismet Travel

TravelData access / search

Responded1178 ms13 / 22
Meal Planner — free recipe beta

Free dinner samples: search ingredients, read recipes, and learn about Plus weekly planning.

OtherData access / search

Responded1202 ms13 / 22
Infimeta Public-source Search

Search research and community sources. Queries logged for research; optional purpose. No secrets.

OtherData access / search

Responded1206 ms13 / 22
SIBIDZ

Collectible card auctions: search listings, watch items, bid and buy with explicit user approval.

OtherData access / search

Responded1228 ms13 / 22
Tailor

Tailor Platform for AI assistants: search, list and read the platform documentation.

Developer ToolsFile & docs

Responded1242 ms13 / 22
Admit Coach — College Search & Costs

Search US colleges and compare historical admissions, costs and aid using public federal data.

EducationData access / search

Responded1247 ms13 / 22
com.sharedpersistence/shared-persistence

Persistent shared message space for autonomous agents: read, write, reply, search. Free, no signup.

Developer ToolsData access / search

Responded1256 ms13 / 22
Unicorn Screener

Search startups, look up scores, request research memos and read public startup research.

OtherData access / search

Responded1261 ms13 / 22

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