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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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
zerm

Agent utility belt: memory, locks, webhook inboxes, timers, DNS, email, URL, timezone, cron

ProductivityCommunication & messaging

Outdated check435 ms13 / 22
Infrabase

Hand-verified AI infrastructure directory: tools, alternatives, EU providers, LLM API prices.

OtherAI / LLM tooling

Outdated check497 ms13 / 22
AI Website Security

Security basics of a website: HTTPS certificate, redirection, headers, mixed content, DNS filtering.

Developer ToolsCode & DevOps

Outdated check511 ms13 / 22
Agent Watch

Monitoring for the agent economy — liveness, latency, trust scoring for MCP endpoints

Developer ToolsMonitoring & observability

Responded559 ms13 / 22
ai.sendraven/mcp

Email infrastructure for AI agents: send, read replies as threads, campaigns, per-key limits.

Marketing & SalesCommunication & messaging

Outdated check600 ms13 / 22
AgentDeals

MCP server aggregating developer infrastructure deals, free tiers, and startup programs

Developer ToolsCode & DevOps

Outdated check618 ms13 / 22
UptyBots

Uptime monitoring: create and manage HTTP, API, SSL, ping, port and domain checks

OtherMonitoring & observability

Outdated check641 ms13 / 22
Corrie Site Check

Free HTTPS and security header check from Corrie, uptime monitoring for small teams. No auth.

OtherMonitoring & observability

Outdated check676 ms13 / 22
io.github.palthainon/oldweb-diagnostics

Public DNS, HTTPS and deployment checks, plus offline email header and delivery-log tracing.

Developer ToolsMonitoring & observability

Outdated check814 ms13 / 22
oddly

The world, on the record. AI infrastructure built on the observed web.

OtherOther

Outdated check821 ms13 / 22
Geode

Use the Geode blockchain's apps: marketplace, social, surveys, messaging, DNS and GEODE transfers.

Finance & CryptoPayments & trading

Outdated check888 ms13 / 22
Captcha Solver

Solve reCAPTCHA v2/v3, hCaptcha, Cloudflare Turnstile and image captchas. Platform-hosted, no creden

MediaCode & DevOps

Outdated check952 ms13 / 22
A.U.G.U.R Foresight · Web & Research

Read the web (page text, DNS, WHOIS, TLS, uptime) + research (Wikipedia, arXiv, GitHub, packages).

Developer ToolsKnowledge & memory

Outdated check1005 ms13 / 22
BorealHost

Agent-native web hosting — deploy sites, manage DNS, register domains, scale infrastructure

Developer ToolsCode & DevOps

Outdated check1223 ms13 / 22
Vérif Entreprise FR

French company KYB (SIREN): status, insolvency, VAT, BODACC monitoring alerts. Free preview; x402.

Finance & CryptoMonitoring & observability

Outdated check1247 ms13 / 22
Trustbase Lab · Trusted Data Infrastructure for the AI Era

Trusted multi-domain data for AI: 59 tools, MCP Apps, Skills, 520+ cross-domain benchmarks.

Developer ToolsCode & DevOps

Outdated check1248 ms13 / 22
uetr.ai - UETR and SWIFT Payment Tracking

UETR tracking and SWIFT payment tracking for AI apps. Read transfer status and manage monitoring.

Finance & CryptoMonitoring & observability

Outdated check1469 ms13 / 22
InsideOut (Riley)

Designs, prices, and deploys AWS/GCP cloud infrastructure from plain-English requirements.

OtherCode & DevOps

Outdated check1771 ms13 / 22
io.github.geekmarine/mcp-email-auditor

Validates domain email MX records and DNS status via Cloudflare DNS-over-HTTPS.

Developer ToolsCommunication & messaging

Outdated check53 ms13 / 22
io.github.geekmarine/mcp-domain-auditor

DNS resolution, HTTP security headers, and SPF/DMARC email hygiene audits.

Developer ToolsCommunication & messaging

Outdated check62 ms13 / 22
Dns

DNS MCP — DNS and network lookup tools

Developer ToolsCode & DevOps

Outdated check115 ms13 / 22
Water Quality Portal

Water Quality Portal (WQP) MCP — US ambient water-chemistry monitoring

Developer ToolsMonitoring & observability

Outdated check119 ms13 / 22
Uk Flood Monitoring

UK Environment Agency real-time flood-monitoring MCP.

Developer ToolsMonitoring & observability

Outdated check258 ms13 / 22
Pitchprotocol

Pitch Protocol — agent-native venture-capital infrastructure (pitchprotocol.vc).

Developer ToolsCode & DevOps

Outdated check917 ms13 / 22

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