MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

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DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

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1429 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
Zitierfest

Cite German law correctly: verbatim statutes (federal, 16 states, EU), court decisions, legal fees

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
ZonRival

Amazon & Shopify competitor research: listings, keyword ranks, review complaints, audits.

E-commerceData access / search

Not measuredNot measured4 / 22
Zotero MCP Server and API by Cotlet

Zotero research reference manager MCP server: add item by DOI, search library, add to collection.

Developer ToolsData access / search

Requires authOutdated checkNot measured4 / 22
ZVG Einfach

German foreclosure auctions (Zwangsversteigerungen): search, details, AI analysis, statistics.

Data & AnalyticsData access / search

Requires authNot measured4 / 22Not checked yet
چیستارا — Iranian Legal Corpus

Iranian statutes, rulings, opinions and legal calculators. Needs a paid Chistara connection link.

LegalKnowledge & memory

Requires authNot measured4 / 22Not checked yet
com.edgethirteen.www/valuefeed

Weekly SEC-sourced research packet licensed for newsletter writers to build commentary on.

Marketing & SalesData access / search

Outdated checkNot measured3 / 22
io.github.HyosikPark/wiki-summary

Concise English Wikipedia summaries — paid per call (x402/credits), 1 tools

Developer ToolsKnowledge & memory

Outdated checkNot measured3 / 22
AET Machine Commerce

Read-only PAPER market research for autonomous agents; no live trading or alpha claim.

Finance & CryptoPayments & trading

Outdated checkNot measured3 / 22
Autonoma Agent Services

Paid agent trust checks, receipt verification, research, data work, and monitoring.

Developer ToolsMonitoring & observability

Outdated checkNot measured3 / 22
China Trade & Market Data

Look up investment statistics by year or country and region.

Finance & CryptoData access / search

Outdated checkNot measured3 / 22
dEdge Solana Wallet Research

Read-only Solana wallet research: realized-only PnL, win rate, leaderboard. Not financial advice.

Finance & CryptoPayments & trading

Outdated checkNot measured3 / 22
Experimental Legal Grounding

Experimental GDPR grounding: rules, preconditions, exceptions, exact quotes, and citation checks.

LegalCode & DevOps

Outdated checkNot measured3 / 22
Fillin

Search for AI agents. Closes the LLM-cutoff gap: CVEs, papers, frontier AI, prediction markets.

Developer ToolsCode & DevOps

Outdated checkNot measured3 / 22
Flowwoods — Real-user research recruiting

Recruit real AI coding tool users for interviews: pricing and free feasibility inquiries.

Developer ToolsCode & DevOps

UnreachableNot measured3 / 22
Japan Official Statistics

Search official Japanese government statistics (e-Stat): population, economy, labor, and more.

GovernmentCode & DevOps

Outdated checkNot measured3 / 22
Japan Official Statistics

Search official Japanese government statistics (e-Stat): population, economy, labor, and more.

GovernmentCode & DevOps

Outdated checkNot measured3 / 22
Jemeen Agent Services

Agent verification tools: CSV quality, citation checks, AI-readiness audits, requirement extraction

Developer ToolsKnowledge & memory

UnreachableNot measured3 / 22
Kai AGI - Autonomous AI Agent

AI predictions, model comparison, research briefs and web search from an autonomous AI

TravelData access / search

Outdated checkNot measured3 / 22
Mirror Memory MCP Server

Personal knowledge base MCP server with semantic search, auto-categorization, metadata extraction

Developer ToolsKnowledge & memory

Outdated checkNot measured3 / 22
SAMHSA Behavioral Health

Behavioral health statistics from SAMHSA surveys including NSDUH

Data & AnalyticsData access / search

Outdated checkNot measured3 / 22
SCRIPTMASTERLABS — SML ticker-research

One cheap, loopable answer per call for a US ticker: market regime, trend + strength, key levels, ne

Finance & CryptoPayments & trading

Outdated checkNot measured3 / 22
STIL Lab Assistant

STIL lab at ETS Montreal — knowledge base and paper search via ArXiv and Semantic Scholar.

Developer ToolsKnowledge & memory

Outdated checkNot measured3 / 22
ai.fiuto/mcp

AI-powered user research for everyone

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured3 / 22
ai.smithery/adamamer20-paper-search-mcp-openai

Search and download academic papers from arXiv, PubMed, bioRxiv, medRxiv, Google Scholar, Semantic…

Developer ToolsAI / LLM tooling

Requires authNot measured3 / 22Not checked yet

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