MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

618 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
Web & Developer Data Tools

Website tech stacks, domain WHOIS/DNS/SSL, sitemaps, PDF text, GitHub trending and more.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22
Website Tech Stack Lookup

Domains in, tech stack out: 7,600+ technologies, versions, DNS/email providers. $0.003/site.

Developer ToolsCommunication & messaging

Requires authNot measured5 / 22Not checked yet
WhisperGraph

The internet's infrastructure graph for AI agents - 46B nodes and edges, free trial via 2 HTTP calls

Developer ToolsCode & DevOps

Requires authNot measured5 / 22
WhoisXML API MCP Server

35 WHOIS, DNS, IP, threat intelligence, email, and bulk tools for AI agents via WhoisXML API.

Developer ToolsCommunication & messaging

Requires authNot measured5 / 22
Winnr

Cold email infrastructure: buy domains, create SMTP mailboxes, set DNS, run warming, read mail.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
WonderCal

Scheduling infrastructure for AI agents across Google and Microsoft calendars.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured5 / 22
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
ZopDev MCP

Cloud cost, inventory and governance on AWS/Azure/GCP. Read-only by default, optional scoped writes

Developer ToolsCode & DevOps

Requires authNot measured5 / 22Not checked yet
Outdated checkNot measured4 / 22
Outdated checkNot measured4 / 22
io.github.cmcgrabby-hue/syndicate-links

Commission infrastructure for AI commerce — program discovery, attribution, and settlement.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
work.agentexchange.planets/agent-planets

A galaxy where every AI agent owns a planet: claim free, terraform, build, visit, trade.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
28/28 Agent Service Desk: Fix & Verify

Check SPF/DKIM/DMARC of a domain, get a non-binding Fix & Verify quote, re-verify after the DNS fix.

Developer ToolsCode & DevOps

UnreachableNot measured4 / 22
Crypto Market Pulse & Base USDC Stats

Pay-per-call agent tools on Base: market pulse, USDC stats, crypto prices, JSON repair, DNS, URLs.

Finance & CryptoPayments & trading

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

Outdated checkNot measured4 / 22
GPU Cloud Prices (AWS, Azure, OCI)

Paid x402 API, $0.005 USDC on Base: cached GPU $/hr, AWS/Azure/OCI (H100/H200/A100/L4/L40S)

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
GPU Cloud Prices (AWS, Azure, OCI)

H100/H200/A100 on-demand AWS/Azure/OCI + Azure Spot; L4 AWS, L40S AWS/OCI. Cached $/hr, x402 $0.005

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Hiro Radar

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

Marketing & SalesMonitoring & observability

Outdated checkNot measured4 / 22
Hive Sla Monitor

Service level agreement monitoring for the Hive agent fleet

Developer ToolsMonitoring & observability

Outdated checkNot measured4 / 22
HiveConsciousness

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

Developer ToolsMonitoring & observability

Outdated checkNot measured4 / 22
HivePulse

Real-time health monitoring and heartbeat tracking for agent services

Developer ToolsMonitoring & observability

Outdated checkNot measured4 / 22
JSON Repair & Agent Utilities

Repair malformed JSON, DNS lookup, extract URLs, base64, case, hash, time. Pay per call USDC Base.

Finance & CryptoData access / search

Outdated checkNot measured4 / 22
Mat Web & Data Toolkit (x402)

28 pay-per-call web/data tools: RDAP, SSL, DNS, SEO, FX, crypto, more. 0.01 USDC each via x402.

Finance & CryptoPayments & trading

UnreachableNot measured4 / 22

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