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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4923 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
Diffusion Love Knowledge

Public knowledge and news search. Unmatched public queries may be retained for research.

Developer ToolsCode & DevOps

Outdated check95 ms14 / 22
kari catalog

kari shoe and accessory stores in Russia, Kazakhstan, Belarus: search, prices, stores, size stock

Finance & CryptoData access / search

Outdated check96 ms14 / 22
402registry

Does an AI crawler see your site? Free registry lookup, x402 pricing; checks paid in USDC on Base.

Finance & CryptoPayments & trading

Responded97 ms14 / 22
blip.zone, the Agent Bazaar

Open network of AI agents: search, posts, replies, reports. Run by AI agents for Kalo Software GmbH.

Developer ToolsData access / search

Responded98 ms14 / 22
xdataapi: X (Twitter) data

Read-only public X (Twitter) data: profiles, tweets, threads, followers, search. Pay per result.

OtherData access / search

Responded99 ms14 / 22
EmojiDig Emoji Search

Search every Unicode emoji by meaning or slang and get the exact character, name and codepoints.

OtherData access / search

Outdated check99 ms14 / 22
Octadesk MCP by usefulapi

Search tickets, read conversations and people; create and update tickets and people in Octadesk.

Developer ToolsData access / search

Responded100 ms14 / 22
WebsiteIQ

Robots-aware website audits, pre-crawl quotes, and structured evidence for people and agents.

Developer ToolsBrowser & web scraping

Outdated check100 ms14 / 22
Ausschreibungsagenten Tender Search

Search public procurement notices from 17 sources across Germany, the EU and the UK. Read-only.

OtherData access / search

Outdated check100 ms14 / 22
Tier 1 Protocol

Search files while they stay encrypted: the problem DARPA chased for a decade. Exact quotes back.

Developer ToolsData access / search

Outdated check100 ms14 / 22
Makeroo

Search the Makeroo product directory and submit your product from your own agent.

Developer ToolsData access / search

Responded101 ms14 / 22
Agent Ready Report

Scan any public website and see how ready it is for AI agents and AI search, explained plainly.

Developer ToolsData access / search

Responded101 ms14 / 22
FrontDesko

Hotel PMS pricing, comparisons, OTA savings math, docs search and live demo availability.

TravelCode & DevOps

Outdated check101 ms14 / 22
a4sx sessions

Search reviewed coding-agent sessions on a4sx anonymously; sign in (OAuth) to load or save sessions.

Developer ToolsData access / search

Outdated check101 ms14 / 22
pracht docs

Search and read the pracht framework documentation: guides, recipes, and API reference.

Developer ToolsFile & docs

Outdated check102 ms14 / 22
Jewelry by Sweet Pea Products

Live fine-jewelry catalog: search, product lookup, compatible chains, size/length variants, store po

Developer ToolsData access / search

Outdated check102 ms14 / 22
Proven Plaza Calculators & Open Data

29 free construction calculators plus Florida contractor, permit, federal award and AI-crawler data.

GovernmentBrowser & web scraping

Outdated check102 ms14 / 22
DEEPBOM

Browser-local and CLI static evidence for deployed AI model artifacts.

Developer ToolsAI / LLM tooling

Outdated check104 ms14 / 22
Dercora

Search products from independent Shopify stores: prices, merchant offers and buy links.

E-commerceData access / search

Responded105 ms14 / 22
trip2g

Serve a folder of Markdown notes as an MCP server: hybrid search, reading, and sourced answers.

Developer ToolsFile & docs

Responded105 ms14 / 22
ddbx — insider dealings

Search rated insider dealings across the UK, US, Sweden, Netherlands and US Congress.

GovernmentCode & DevOps

Outdated check105 ms14 / 22
Dhamma.Gift — Pāli Canon

Search and read the Pāli Canon: Pāli root texts with Russian and English translations.

OtherData access / search

Outdated check105 ms14 / 22
Fairquery Company Jobs Feed

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

Developer ToolsData access / search

Responded106 ms14 / 22
Cuevr

Read-only tools: search the site, read pages, see plans, price a quote, cite sourced figures.

OtherData access / search

Responded106 ms14 / 22

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