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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1549 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
MailVakt

Use when email lands in spam: audits SPF, DKIM, DMARC, MX and returns the DNS records to fix it.

ProductivityCommunication & messaging

Outdated check362 ms13 / 22
thenetworkery

DNS, email auth, TLS, BGP/RPKI, WHOIS and subnet tools with plain-English fixes, plus webhook URLs.

ProductivityCommunication & messaging

Outdated check370 ms13 / 22
Junto group calendar

Shared group calendar with RSVPs, no login. Create calendars, read events, add events, RSVP.

ProductivityFile & docs

Outdated check379 ms13 / 22
Kras-Trans: transport quotes, CMR, WZ and interest notes

Van transport quotes in Poland and the EU, quote status, CMR in 25 languages, WZ, interest notes.

ProductivityFile & docs

Outdated check395 ms13 / 22
Krish Parekh

Read-only access to Krish Parekh's profile, projects, articles and hiring info.

ProductivityFile & docs

Outdated check430 ms13 / 22
zerm

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

ProductivityCommunication & messaging

Outdated check435 ms13 / 22
ShareNotes

Create and read text notes at memorable links like sharenotes.dev/blue-fox-42. No key, no account.

ProductivityFile & docs

Outdated check438 ms13 / 22
AI-Safe Careers

AI exposure scores (0-100) for ~1,000 U.S. occupations, and recent AI-attributed layoffs.

ProductivityFile & docs

Outdated check455 ms13 / 22
Rezifi job search

Search open jobs on employers' own careers sites, each confirmed open in the last 3 days.

ProductivityData access / search

Outdated check456 ms13 / 22
GTM for One

Find companies that could buy from a business and draft the first cold emails, from its website.

ProductivityCommunication & messaging

Outdated check456 ms13 / 22
Voix contact

Reach a human at Voix: submit the studio contact form and get a reply by email.

ProductivityCommunication & messaging

Outdated check458 ms13 / 22
Distributed Risk desk

Read the Distributed Risk desk notes and the official US record they cite.

ProductivityFile & docs

Outdated check464 ms13 / 22
Off the Floor Nurse Jobs

Remote, hybrid and non-bedside RN, LPN and NP jobs from employers' own career sites.

ProductivityFile & docs

Outdated check471 ms13 / 22
Skillfolio

Turn a resume into a portfolio website, look up published profiles, and ask about Skillfolio.

ProductivityData access / search

Outdated check472 ms13 / 22
Signatoro

The agentic email signature platform: one saved signature for your people and your AI agents.

ProductivityCommunication & messaging

Outdated check486 ms13 / 22
codercops

Search developers and remote developer jobs on codercops, a hiring marketplace.

ProductivityData access / search

Outdated check507 ms13 / 22
RoleWeek

Developer roles posted in the last 7 days, read from employers' own hiring systems. No sign-in.

ProductivityFile & docs

Outdated check508 ms13 / 22
Haystack Jobs

Search live jobs from employers' own careers sites in the US, UK, Canada, Australia and Europe.

ProductivityData access / search

Outdated check516 ms13 / 22
The Notetakers

Read-only search and Markdown for The Notetakers reviews of AI meeting notetakers.

ProductivityFile & docs

Outdated check557 ms13 / 22
Mash Prime

Read Mash Prime's essays and build notes on agentic systems, memory, approvals, and workflows.

ProductivityAutomation & workflows

Outdated check560 ms13 / 22
searchnapply

1M+ jobs from company career sites. Search in your words, catch new ones daily, tailor your resume.

ProductivityData access / search

Outdated check566 ms13 / 22
BriefMe

Meeting agenda timer for AI assistants: build agendas in chat, share a live synced countdown.

ProductivityFile & docs

Outdated check569 ms13 / 22
Sonlight Window Cleaning

Book window & gutter cleaning in Colorado and New Mexico: instant firm quote, real calendar slot

ProductivityFile & docs

Outdated check581 ms13 / 22
Universal Agents

Ask Universal Agents what we sell (Interplay), pricing, and FAQs; draft an intro email.

ProductivityCommunication & messaging

Outdated check595 ms13 / 22

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