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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1583 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
SureSMS

Send SMS, manage contacts and groups, and read delivery reports. OAuth 2.1 SureSMS login.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
Tamloot

Look up your Tamloot contacts, sessions, transcripts and notes; add or update contacts and notes.

ProductivityData access / search

Requires authOutdated checkNot measured5 / 22
TargetWise — B2B Prospecting & Enrichment

Find companies and B2B contacts, enrich profiles, and look up work emails and business phones.

ProductivityData access / search

Requires authNot measured5 / 22Not checked yet
Taskfolk

Project management for teams and their AI agents.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
Teamhood

Teamhood project management for matrix organizations: items, dependencies, time, capacity and teams.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
TeamMeet

Start meetings and work with meeting transcripts, notes, recordings and follow-up tasks.

ProductivityCode & DevOps

Requires authNot measured5 / 22Not checked yet
The Margin

Notes, boards, habits, money and family life in one place your AI can read and act on.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
ThinkSpace

Send notes from Claude, ChatGPT or Claude Code to your ThinkSpace inbox and arrange them into cards.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
ThreadPage

Read, search and add notes in your ThreadPage threads. On Free it adds notes to your Inbox.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
Timothe's Growth Calendar

Plan, schedule and generate SEO articles on a content calendar, from your agent.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
Tmailor temporary email

Receive-only temporary email addresses for AI agents: create an inbox, wait for an email, read it.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
Tokolaku

WhatsApp Business API platform for Indonesian SMBs: messages, inbox, products, orders, webhooks.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
TOPY.AI · AI CTO

Founders' AI CTO: CI failures explained, PRs and checks, release notes, alerts.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
Torque

Unified book, desk, calendar, prices, and rates for agents. Sign up, pay, pull.

ProductivityFile & docs

Requires authNot measured5 / 22Not checked yet
Truelist

Validate email addresses for deliverability and manage email validation batches with Truelist.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
Tsenta: AI job application agent

Find jobs, tailor your resume to each role and apply on Workday, Greenhouse, Lever, Ashby and more.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
UniOne

Send transactional email and manage domains, templates and webhooks in UniOne from AI agents.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Unitpost

Email and SMS infrastructure, run by your agent: send, campaigns, contacts, domains, webhooks.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
Usero

Your user feedback in your agent: read the inbox, build forms, file issues, open an AI PR.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
Veille

Validate emails, domains, IPs, VAT numbers and IBANs in milliseconds to block fake sign-ups, bots a…

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
VibeAdmin

Admin for your app from your AI agent: users, stats, segments, feature flags and email.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Virtnumber

Rent real and virtual phone numbers in 14 countries and read their SMS from your AI agent.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
VivaDialog

Read and work a VivaDialog social inbox: reply to customers, tag, manage contacts and automations.

ProductivityAutomation & workflows

Requires authOutdated checkNot measured5 / 22
volai

Czech telephony API and MCP: numbers, calls, SMS, voice agents, calendars and invoices.

ProductivityPayments & trading

Requires authNot measured5 / 22Not checked yet

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