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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5042 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
Nukafever Photography

Search, quote, buy and download licensed documentary photos. No account, fixed prices.

MediaCode & DevOps

Responded125 ms13 / 22
Contractors Near Me

Search licensed US contractors by trade or location, fetch profiles and reviews, and submit leads.

Marketing & SalesData access / search

Responded125 ms13 / 22
AI Crawler Index

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

OtherBrowser & web scraping

Responded125 ms13 / 22
Fuse rooms

Search Fuse's furnished, all inclusive student rooms in Budapest and Riga. Read only, no key.

EducationData access / search

Responded125 ms13 / 22
FiltreCharbon

Search FAC charcoal filters, check specifications and prepare a checkout link for France or Belgium.

Finance & CryptoPayments & trading

Responded125 ms13 / 22
NanoTools

44 tools for AI agents: Trends, SERP, SEO audits, screenshots, weather, FX, whois, RSS.

Developer ToolsCode & DevOps

Responded126 ms13 / 22
io.github.NeousAxis/aya-registry

Search 367k+ verified businesses; earn cashback when an agent routes a real purchase.

Developer ToolsCode & DevOps

Responded126 ms13 / 22
Black Label Bots Website MCP

Search and read public Black Label Bots pages with source URLs.

Developer ToolsData access / search

Responded128 ms13 / 22
Nagora

Buy real goods with Nano (XNO) through escrow. Search, purchase, track orders, get signed receipts.

E-commerceData access / search

Responded128 ms13 / 22
Pressbox News Wire

Search published Pressbox press releases and newsrooms with original source links and dates.

MediaCode & DevOps

Outdated check128 ms13 / 22
YappyKids shop

Children's furniture catalogue of YappyKids (Latvia): search, prices, stock, delivery. Read-only.

Finance & CryptoData access / search

Responded129 ms13 / 22
Symbola

Search software packs on symbola.sh, read their decisions, and get steps to build them.

Developer ToolsCode & DevOps

Responded129 ms13 / 22
HeavenPC (US)

Search, filter and compare server racks in HeavenPC's catalogue, each with a link to its page.

OtherData access / search

Responded129 ms13 / 22
Flowie Developer Docs

Search and read the Flowie Exchange API docs and OpenAPI contract. No sign-in needed.

LegalCode & DevOps

Responded129 ms13 / 22
Ace Website MCP

Search and read public Ace pages with source URLs.

Developer ToolsData access / search

Responded130 ms13 / 22
AOPX

Selects between supported SEARCH providers for ECONOMY or CRITICAL mode.

OtherData access / search

Responded130 ms13 / 22
Arcalune Music

Search royalty-free BGM and sound effects (commercial use OK, no credit) and game fan arrangements.

MediaData access / search

Responded132 ms13 / 22
UltraTech Pakistan

IT services in Lahore, Pakistan: search services, read pages, CCTV and UPS calculators.

OtherData access / search

Responded133 ms13 / 22
KitchenWatt (France)

French food processor comparison: search, filter and compare KitchenWatt's catalogue.

OtherData access / search

Responded134 ms13 / 22
TechPartPrices

UK PC component prices: search parts, look one up, and read price history.

OtherData access / search

Responded135 ms13 / 22
Gondar

Search open grants, tenders and fellowships from official sources, with facts and official links.

Developer ToolsCode & DevOps

Responded136 ms13 / 22
com.securesvault/catalogue

Search 10,209 products for sale in euros and return buyable links with live prices.

OtherData access / search

Responded137 ms13 / 22
Listen to Sadhu

Read-only semantic search over Vedic scripture verses, commentaries, and recorded lectures.

OtherData access / search

Responded137 ms13 / 22
fi.okunkoneosa/okun-koneosa

Finnish industrial supplies store. Read-only MCP: catalog search, product details, cart, policies.

Developer ToolsData access / search

Responded138 ms13 / 22

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