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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1452 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
LowlandData Company Identity

GDPR-clean company enrichment: domain, logo, socials, EU VAT and email-security from a name.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
LowlandData Social

Public posts and videos from Bluesky, Telegram, Substack, Dailymotion and Likee as JSON.

MediaCommunication & messaging

Requires authOutdated checkNot measured3 / 22
MailDignity

Audits outbound emails for clarity, respect, and higher reply rates

ProductivityCommunication & messaging

Requires authOutdated checkNot measured3 / 22
mailfloss

Email verification for AI agents: verify addresses and lists, check credits, manage integrations.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
MailInApp

Build and send interactive email campaigns: studio editing, contacts, sending, results.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured3 / 22
MailJunky

Send emails, track events, and manage contacts with MailJunky.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
MarleyFetch

Let AI agents send email from your own Gmail, Microsoft 365 or SMTP inbox, with guardrails.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
MCP Hub — your personal data for AI

Your personal data for AI — Telegram, bank, courses, Zoom & more, scoped to you.

Finance & CryptoCommunication & messaging

Requires authOutdated checkNot measured3 / 22
Mojeeb

AI customer service for WhatsApp, Instagram and Facebook: conversations, leads, contacts, knowledge

Marketing & SalesCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Oryah Mail

Governed email for agents: Gmail, M365 and IMAP; per-mailbox permissions, send allowlist, audit log

ProductivityCommunication & messaging

Requires authNot measured3 / 22
OutreachBox

Cold email, prospect research, inbox triage, and content marketing in OutreachBox.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Pachca

A tool for each Pachca API method: messages, chats, threads, reminders, users and more

ProductivityCommunication & messaging

Requires authNot measured3 / 22
PlatformDTC

Run your online store with your own AI: products, orders, customers, ads, emails and reports.

E-commerceCommunication & messaging

Requires authNot measured3 / 22
Pombity

Compliance-first SMS and email: consent, STOP/HELP, quiet hours, verified destinations, reports.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
PostZen

Schedule and publish social posts, manage the inbox, and read analytics across 10 platforms

Data & AnalyticsCommunication & messaging

Requires authOutdated checkNot measured3 / 22
Privaku Talk

Message your owner in Privaku Talk and ask for Face ID approval before risky actions.

OtherCommunication & messaging

Requires authNot measured3 / 22
QR Rápido

Generate QR codes for URLs, PIX, Wi-Fi, vCards, WhatsApp and more. For AI agents.

Developer ToolsCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Radar noEixo

Radar noEixo: WhatsApp sales and support with an AI agent, CRM pipeline and post-sale (Brazil).

Marketing & SalesCommunication & messaging

Requires authNot measured3 / 22
RevenueBase

Find B2B contacts, inspect audience coverage, enrich emails, and verify deliverability.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
Robase SMS

Prepaid SMS OTP and transactional SMS API. Eight priced markets: NG, GH, KE, ZA, GB, BJ, CI, US.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Runbear

Create and manage Runbear team AI agents, their apps, triggers, and schedules, and deploy to Slack.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured3 / 22
SAFTI France Real Estate Agents

SAFTI France independent real estate advisors with phones, emails, city and sector, by region

Real Estate & PropertyCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Sendblox

AI outreach + email sending connected to your CRM. Requires a paid Sendblox account.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Sendly

Send email, manage contacts, campaigns and workflows, and diagnose deliverability in Sendly.

Marketing & SalesCommunication & messaging

Requires authNot measured3 / 22Not checked yet

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