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
PlainError

Plain-English fixes for Windows, PC games, and code. Search or paste an error. No account needed.

OtherData access / search

Responded76 ms13 / 22
Tryvon

Dutch price comparison, starting with travel eSIMs: total price, delivery and price history.

TravelData access / search

Outdated check77 ms13 / 22
AIKIZI

Search decoded art styles and their prompts; decode your own images with your account.

MediaData access / search

Outdated check77 ms13 / 22
Tennessee Property Records

Who owns any Tennessee parcel: owner search, ownership and sale history across 2.8M parcels.

OtherData access / search

Outdated check77 ms13 / 22
VanAuto Campers

Search VanAuto camper and rental listings: specs, photos, prices, equipment, contacts.

MediaData access / search

Outdated check78 ms13 / 22
Quietwork Lead Feeds

Public-records leads: trucking insurance signals, liquor licenses, new nonprofits, LLCs, carriers.

GovernmentData access / search

Outdated check78 ms13 / 22
DocketTrail

Healthcare transaction reviews, CON projects and nonprofit facility notices, with agency sources.

HealthcareData access / search

Outdated check79 ms13 / 22
io.github.DarthSander/agentdata-nl

x402-paid tools: EU company & sanctions data, web search, LLM chat, crypto intel, x402 monitoring.

Finance & CryptoData access / search

Outdated check80 ms13 / 22
SeatWiFi

In-flight WiFi: provider by flight, airline or tail, measured speeds, Starlink rollout.

TravelData access / search

Outdated check80 ms13 / 22
WIPE Around

Local businesses in Israel: search by trade and town, read prices, services and contacts.

OtherData access / search

Outdated check81 ms13 / 22
$199 Domains marketplace

Search and price-check brandable and keyword domains for sale at fixed prices of $199 or less.

OtherData access / search

Outdated check81 ms13 / 22
PixilUI components

Search and install PixilUI React components for AI product UI into your app.

OtherData access / search

Outdated check81 ms13 / 22
ISHOB Knowledge Archive

License-checked research archive and technical-spec search for AI agents. Pay per call via x402.

Finance & CryptoData access / search

Outdated check81 ms13 / 22
org.rrmacademy/library

Search 4,130+ peer-reviewed articles on restorative reproductive medicine, with fact verification

HealthcareData access / search

Outdated check82 ms13 / 22
CNPJ Completo

Brazilian company data by CNPJ from Receita Federal: partners, CNAE, address, debts and sanctions.

GovernmentData access / search

Outdated check82 ms13 / 22
Atviri teisės aktai – Lithuanian law

Lithuanian laws article by article, with whether each applies today, past versions and search

LegalData access / search

Outdated check83 ms13 / 22
VI Update

Search and read VI Update and Good Day (U.S. Virgin Islands news) and The Straight Record.

MediaData access / search

Outdated check83 ms13 / 22
OptiLibra Optical Networking

Search 400G/800G DCI, DWDM and optical switching gear for AI data centers and request quotes.

OtherData access / search

Outdated check83 ms13 / 22
GdzieZabawa.pl

Local events and things to do in every Polish municipality: festivals, fairs, kids' events.

GovernmentData access / search

Outdated check84 ms13 / 22
Destava job search

Search current job postings from companies' own career sites. Free, no account.

ProductivityData access / search

Outdated check84 ms13 / 22
AgentDNA by ANGELS

Company catalogs for AI agents: products, prices, availability. Search, read, or start one free.

OtherData access / search

Outdated check84 ms13 / 22
Fairquery Company Jobs Feed

COMING SOON: indexed search, 8,700+ boards. Apify $5 credit. Free 135-board scan.

Developer ToolsData access / search

Outdated check85 ms13 / 22
theoPros

Search and verify 79k state-licensed US contractors, checked weekly against the licensing boards.

Developer ToolsData access / search

Outdated check86 ms13 / 22
AETHER by ANGELS

Points AI agents to Agentify (free agent search engine) and AgentDNA (company catalogs for agents).

Developer ToolsData access / search

Outdated check86 ms13 / 22

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