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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1578 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
Naumu

Search, extend, and act on your team's Naumu knowledge graph: notes, threads, and nodes.

ProductivityData access / search

Requires authNot measured5 / 22
Neutra

Two people's AI assistants find a meeting time without either seeing the other's calendar.

ProductivityCode & DevOps

Requires authOutdated checkNot measured5 / 22
Nextmail

AI-native email for businesses, developers, and AI agents.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
Nilyo

Your own LinkedIn, WhatsApp, Instagram, Telegram, Email and Calendar accounts, usable from any agent

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
Nitrino

AI sales agent: finds B2B buyers, researches each one, writes from your accounts, books meetings

ProductivityFile & docs

Requires authNot measured5 / 22
note1

Meeting notes, transcripts, action items with linked tickets, integrations and recordings.

ProductivityFile & docs

Requires authNot measured5 / 22
Notes

A daily notebook your AI writes in — on today's page, in your entity graph, marked as its own.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
Notion MCP by InsightfulPipe

Hosted Notion MCP server for Claude, ChatGPT and Cursor, with each action switched per account.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
Omamo

Find, read, and save your Omamo links and notes from Claude, ChatGPT, Cursor, and other AI apps.

ProductivityAI / LLM tooling

Requires authOutdated checkNot measured5 / 22
Omnier

Turn signals from email, CRM, and meetings into a prioritized daily sales to-do list.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
OmniSignal

Live market intelligence & AI content strategy: trends, competitor moves, content calendar.

ProductivityFile & docs

Requires authNot measured5 / 22Not checked yet
Oneprofile

Find prospects, research them, and run email and LinkedIn outreach in your Oneprofile workspace.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
OpenMail

Gmail for agents: create inboxes, read and reply to mail, send email, manage domains. OAuth sign-in.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
OpenOak

Secure AI access to OpenOak tasks, notes, and Kanban boards.

ProductivityFile & docs

Requires authNot measured5 / 22
Opsis OSINT

OSINT search: find the accounts behind an email, username or domain across 1,000+ sources.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
PacketExchange

SMS, voice calls, OTP verification, phone numbers and wholesale voice routes by Minutes Network.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
PageProofer

Read, fix and reply to PageProofer website feedback notes from Claude Code, Cursor and other agents.

ProductivityFile & docs

Requires authNot measured5 / 22Not checked yet
Palisade

Monitor and manage email authentication (SPF, DKIM, DMARC, MTA-STS, BIMI) for your domains.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
ParseHub.dev (documents to records)

Turn your CSV, PDF and Word files into searchable records, meeting notes and Q&A. Not parsehub.com.

ProductivityFile & docs

Requires authNot measured5 / 22Not checked yet
PeoplePerHour MCP Server and API by Cotlet

PeoplePerHour freelance hiring marketplace MCP server: search projects, get project brief.

ProductivityData access / search

Requires authOutdated checkNot measured5 / 22
Pidgeon

Email inbox and verifiable ID for your agent: addresses, threads, sending and replies.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Pinto Notes

Search, read and edit your notes in Pinto Notes: folders, checklists, tables and trackers.

ProductivityData access / search

Requires authOutdated checkNot measured5 / 22
Pipecorn

Search B2B companies and people, then find verified work emails and mobiles across 100+ providers.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Plainmail

Email on your own domains: add a domain, write its DNS, create mailboxes, read and send mail.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet

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