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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5025 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
Afterlight Commons

Shared memory for AI agents: search and record errors, fixes, gotchas and dead ends.

Developer ToolsKnowledge & memory

Responded442 ms14 / 22
DiarioBitcoin

Spanish crypto, Bitcoin, AI and finance news since 2014. Free search and excerpts, paid full text.

Finance & CryptoPayments & trading

Responded445 ms14 / 22
io.github.claracarspt/mcp

Used & imported cars in Portugal: search stock, ISV/IUC tax calc, resale value, contact.

Finance & CryptoCode & DevOps

Responded446 ms14 / 22
io.github.Nadeus/toolradar

Search, compare and price software tools. Verified prices with their date, real alternatives.

Developer ToolsCode & DevOps

Outdated check447 ms14 / 22
ISMS Directory

Read-only search of a curated directory of ISO 27001, SOC 2 and compliance services.

SecurityData access / search

Responded449 ms14 / 22
PublicLeads

Search B2B business lead lists by industry and location: counts, prices, masked samples. Read-only.

Marketing & SalesData access / search

Responded452 ms14 / 22
BotLens AI Gateway

MCP gateway for getbotlens.com: articles, search and full text. Read-only, no auth.

Developer ToolsData access / search

Responded452 ms14 / 22
VeteranHQ

Veterans benefits and VA claims reference: VA disability ratings, compensation rates, 38 CFR search

OtherData access / search

Responded452 ms14 / 22
Acosta Curated Travel

Search Acosta Curated Travel articles, browse upcoming group trips, and reach Ivone Acosta.

TravelData access / search

Responded453 ms14 / 22
Youanai Docs

Search and read public youanai.com pages on pricing, products and guides. No sign-in needed.

OtherData access / search

Responded455 ms14 / 22
Rezifi job search

Search open jobs on employers' own careers sites, each confirmed open in the last 3 days.

ProductivityData access / search

Responded455 ms14 / 22
ELIB - Armenian Digital Library

Search and cite books, authors and subjects of elib.am, the free Armenian digital library.

OtherData access / search

Responded455 ms14 / 22
Bereishes

Search and read classical Jewish texts: Tanach, Talmud, Midrash, halacha, and commentaries.

OtherData access / search

Responded459 ms14 / 22
StealthStack ARD Discovery

Search a public index of agents, MCP servers and skills found on the open web. Free, no auth.

Developer ToolsData access / search

Responded460 ms14 / 22
Moving Polygons (published maps)

Search and read published animated maps of borders and history. No sign-in needed.

OtherData access / search

Responded461 ms14 / 22
EscapeStays by Luxury Lodging

Book vacation rentals direct: search homes, check live availability, get a real total.

TravelData access / search

Responded462 ms14 / 22
Landed

Search AI-native jobs, inspect application forms, and fetch free interview-prep resources.

Developer ToolsCode & DevOps

Outdated check462 ms14 / 22
Doviandi Cyprus corporate and tax

Reviewed Cyprus corporate and tax facts, statutory tests, and company register search.

Finance & CryptoData access / search

Responded464 ms14 / 22
LegalAIMCP Directory

Search a curated directory of AI tools and MCP servers for law firms. Read-only, free, no auth.

LegalData access / search

Responded465 ms14 / 22
agentbuilt

Free AI-readiness audit of any URL: AI crawler rules, JS-free text, JSON-LD, llms.txt. Tool catalog.

OtherBrowser & web scraping

Outdated check465 ms14 / 22
UICapsule

Search and install interactive React components with unusual motion, via the shadcn CLI.

Developer ToolsData access / search

Outdated check465 ms14 / 22
AegeanBot Direct Stays

Search verified Greek vacation rentals with live availability, prices, policies, and booking links.

TravelData access / search

Responded467 ms14 / 22
Crystal Suppliers MCP

Search verified crystal bracelets and source beads, accessories, and raw materials.

Developer ToolsCode & DevOps

Responded467 ms14 / 22
JoinTheDeal

Search Southern California home deals and group buys. Read-only, no login.

OtherData access / search

Responded469 ms14 / 22

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