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.

Connect your agent

324 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
Uptimy

Uptime monitoring from your assistant: see what's down, run incidents, set up monitors and reports.

Developer ToolsMonitoring & observability

Requires authOutdated checkNot measured5 / 22
Visual Sentinel

Website monitoring for AI assistants: catches pages that look broken even when the site is up.

Developer ToolsMonitoring & observability

Requires authNot measured5 / 22
vulntel

Free hosted CVE intel for bug-bounty agents: CVE fact-check, attack approaches from paid H1 reports

SecurityMonitoring & observability

Requires authNot measured5 / 22Not checked yet
Watchr

Competitive intelligence and brand monitoring for AI assistants via Watchr.

Developer ToolsMonitoring & observability

Requires authNot measured5 / 22
Web & Business Monitoring (DMARC, sitemaps, Shopify, jobs)

Monitor DMARC/WHOIS, site changes, Shopify and WooCommerce prices, ATS jobs, Bluesky, podcasts.

E-commerceMonitoring & observability

Requires authNot measured5 / 22Not checked yet
Website Screenshot API

Full-page, first-screen, mobile or element screenshots of any URL as PNG, JPEG or PDF.

Developer ToolsMonitoring & observability

Requires authNot measured5 / 22Not checked yet
Website Tech Stack Detector

What a website is built with: CMS, frameworks, analytics, CDN, hosting. 7,000+ technologies.

Developer ToolsMonitoring & observability

Requires authNot measured5 / 22Not checked yet
WhiteBoxXAI

AI observability, explainability and governance: drift, fairness, ISO 42001, risk register.

Developer ToolsMonitoring & observability

Requires authNot measured5 / 22Not checked yet
Xcatcher — Recent X Posts

Fetch recent public X/Twitter posts by named handle for monitoring, comparison, OSINT, and research.

Developer ToolsMonitoring & observability

Requires authNot measured5 / 22Not checked yet
Xitoring

Connect AI assistants to Xitoring monitoring: servers, uptime, incidents, metrics, SSL, and alerts.

Developer ToolsMonitoring & observability

Requires authNot measured5 / 22Not checked yet
UnreachableNot measured4 / 22
UnreachableNot measured4 / 22
com.cve-security/cve-intelligence

CVE intelligence: exploitation (KEV/EPSS), detection coverage, fixed versions, CPE configurations.

SecurityMonitoring & observability

UnreachableNot measured4 / 22
AgentPing

Production observability for AI agents: search runs, read evaluations, acknowledge incidents.

Developer ToolsMonitoring & observability

UnreachableNot measured4 / 22
Agentry — The Trust Layer for the Agent Economy

Agent registry with Nostr identity, reputation, escrow, observability, and Lightning payments.

Finance & CryptoMonitoring & observability

UnreachableNot measured4 / 22
Cybret findings

Validated API and app vulnerability findings with remediation guidance.

SecurityMonitoring & observability

Outdated checkNot measured4 / 22
Environmental Compliance

EPA air quality monitoring and HUD foreclosure data. 3 MCP tools for environmental and housing data.

Real Estate & PropertyMonitoring & observability

UnreachableNot measured4 / 22
FET112

Security intelligence for AI agents monitoring Ethereum before actions.

Finance & CryptoMonitoring & observability

UnreachableNot measured4 / 22
Hiro Radar

Hiro Radar: AI-assisted monitoring for leads, competitors, opportunities and web changes.

Marketing & SalesMonitoring & observability

UnreachableNot measured4 / 22
Hive Sla Monitor

Service level agreement monitoring for the Hive agent fleet

Developer ToolsMonitoring & observability

UnreachableNot measured4 / 22
HiveConsciousness

System self-awareness, health monitoring, and autonomous self-repair

Developer ToolsMonitoring & observability

UnreachableNot measured4 / 22
HivePulse

Real-time health monitoring and heartbeat tracking for agent services

Developer ToolsMonitoring & observability

UnreachableNot measured4 / 22
Is This Site Down?

Check if any website is down, from two continents, with uptime history and TLS expiry

OtherMonitoring & observability

UnreachableNot measured4 / 22
Nizh

Compliance frameworks (SOC 2, ISO 27001, CMMC, NIST, more) delivered to AI agents as MCP tools.

SecurityMonitoring & observability

UnreachableNot measured4 / 22

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