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

619 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
Outdated check126 ms8 / 22
Outdated check128 ms8 / 22
CustomDomain™

Custom domains for SaaS and AI agents: search, register, connect DNS, and issue HTTPS over MCP.

Developer ToolsData access / search

Requires authOutdated checkNot measured6 / 22
Simplifyd Cloud

Deploy and manage services, databases, domains and DNS on Simplifyd Cloud.

Developer ToolsDatabase

Requires authOutdated checkNot measured6 / 22
dev.ecoa/ecoa

Verificação de segurança e conformidade de sites: cabeçalhos, TLS, DNS, e-mail, LGPD e pentest.

SecurityMonitoring & observability

Outdated checkNot measured5 / 22
dev.mailkite/mailkite

Send email, manage domains, DNS, webhooks, templates, and inbound routing on MailKite

ProductivityCommunication & messaging

Outdated checkNot measured5 / 22
io.github.acrylicfiddle/x402tools

10 pay-per-call tools for AI agents: QR, screenshots, DNS, OCR, PDF, email & more. USDC on Base.

Developer ToolsCommunication & messaging

Outdated checkNot measured5 / 22
io.github.Baneado98/cloud-pathfinder

IaC attack-path auditor: finds internet-to-crown-jewel chains in Terraform/CFN/K8s.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
io.github.dohyeopsong/nerd-utility-api

Agent utility API: 28+ free endpoints (hash, QR, DNS, scrape, JWT...) run by an autonomous AI agent.

Developer ToolsBrowser & web scraping

Outdated checkNot measured5 / 22
Outdated checkNot measured5 / 22
Outdated checkNot measured5 / 22
io.github.viviooio/vivioo

Trust infrastructure for AI agents. Directory, jobs, verification, and 360 feedback.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
DevOps & Cloud Code Auditor

Detects database migration table locks, terraform cost leaks, and OWASP API flaws.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
DMARC Shark — Email DNS Checker

Check a domain's public SPF, DMARC, MX and DKIM DNS records on demand. No account required.

ProductivityCommunication & messaging

Outdated checkNot measured5 / 22
DNS Lookup API

DNS record lookup — A, AAAA, MX, TXT, CNAME, NS via Cloudflare. x402 micropayment.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
Domain & Company Intel MCP

Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.

Developer ToolsCommunication & messaging

Outdated checkNot measured5 / 22
Domain Intelligence API

WHOIS, DNS records, SSL certificate data for any domain in one call. x402.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
FACTRAIL

Evidence infrastructure for agents: source-backed company verification and beta import assessment.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
GPUQuant AI Infrastructure

Search AI infrastructure, inspect facility evidence and explore sourced company relationships.

OtherData access / search

Outdated checkNot measured5 / 22
Industrial Platform Wallet Monitor

Recurring wallet, USDC and ERC-20 monitoring for autonomous agents.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Industrial Platform Web Monitor

Recurring webpage change, price, inventory and metadata monitoring for autonomous agents.

Developer ToolsMonitoring & observability

Outdated checkNot measured5 / 22
nexus0-agent-rail

Pay-per-call DNS/TLS truth and npm/PyPI breakage checks via x402. No account or API key.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
Phonon

Monitoring + status pages set up by talking to Claude. Auto-detects 30+ SDKs and your URLs.

Developer ToolsMonitoring & observability

Outdated checkNot measured5 / 22
SignalSeek

Reddit lead monitoring for AI agents. Scored threads and drafted replies. Never posts.

Developer ToolsMonitoring & observability

Outdated checkNot measured5 / 22

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