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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1557 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
Sky and Signs — horoscopes and sky calendars

Daily horoscopes (en/es/pt, 7 days ahead), moon phases, Panchang, solar terms, Maya, Ramadan dates.

ProductivityFile & docs

Outdated check94 ms12 / 22
The List Access

Search the public Dutch event calendar by artist, city, venue, genre and date. Read-only.

ProductivityData access / search

Outdated check95 ms12 / 22
LsTuvi - Tử Vi & Lịch âm

Vietnamese Tử Vi charts, lunar calendar, good-day finder and age compatibility. Free, no sign-in.

ProductivityFile & docs

Outdated check101 ms12 / 22
Sheetwise Label Maker

Print address labels from a list or a spreadsheet without opening Word.

ProductivityFile & docs

Outdated check107 ms12 / 22
intaern jobs

Open physiotherapy jobs in Germany from practice careers pages, with 60-second apply links.

ProductivityFile & docs

Outdated check110 ms12 / 22
voidjet empty legs

Search empty-leg private jet offers; prepare inquiries and alerts the user confirms by email.

ProductivityCommunication & messaging

Outdated check113 ms12 / 22
CortexPlus

Personal memory layer: files, notes, messages, tasks and email, semantically indexed.

ProductivityCommunication & messaging

Outdated check122 ms12 / 22
Jobroulette

Jobs in Germany, Austria and Switzerland matched to your resume.

ProductivityFile & docs

Outdated check128 ms12 / 22
com.infobip/mcp

Infobip MCP server for omnichannel communication and messaging. SMS, RCS, WhatsApp, Viber and more.

ProductivityCommunication & messaging

Outdated check130 ms12 / 22
MCPFax Agent Continuity

Resume the work, not the conversation. A checkpoint by one model is resumable by another.

ProductivityFile & docs

Outdated check131 ms12 / 22
Studio Natali – hair salon booking (Říčany, CZ)

Book a haircut with Vilma Strakatá, Studio Natali Říčany (CZ): prices, free times, SMS-verified.

ProductivityCommunication & messaging

Outdated check133 ms12 / 22
Revexa: B2B buying signals

B2B buying signals: companies hiring salespeople, startups hiring sales, weekly funding rounds.

ProductivityFile & docs

Outdated check152 ms12 / 22
Outdated check166 ms12 / 22
Outdated check173 ms12 / 22
SPLIDIA — operational notes and capabilities

Fibre optics, OTDR, network design and data centre notes from SPLIDIA, plus its service catalogue.

ProductivityFile & docs

Outdated check188 ms12 / 22
Free Small Biz Tools

Free quote and late-fee calculators, paid reminder emails and a $1 small-business tool stack report.

ProductivityCommunication & messaging

Outdated check189 ms12 / 22
ReminderIt

Schedule real phone-call reminders with WhatsApp follow-up — medication, wake-ups, family check-ins.

ProductivityCommunication & messaging

Outdated check212 ms12 / 22
Up To Tech

Pitch Yann Ravel-Sibillot's angel fund, book a meeting, and run the deal from terms to wire.

ProductivityFile & docs

Outdated check216 ms12 / 22
Ariel Adler: branding, websites & systems (Israel)

Read about Ariel Adler (Israeli brand designer) and book an intro meeting with him.

ProductivityFile & docs

Outdated check216 ms12 / 22
Heffl Free Tools

Free email verification, business calculators, UAE estimates and drafts. No API key.

ProductivityCommunication & messaging

Outdated check218 ms12 / 22
ai.kaiv/email-check

Email posture for any domain: can it receive mail, can it be spoofed? MX, SPF and DMARC.

ProductivityCommunication & messaging

Outdated check242 ms12 / 22
getwork.dev

Search developer jobs read straight from employers' hiring systems: stack, level, remote, salary.

ProductivityData access / search

Outdated check246 ms12 / 22
com.preesy/preesy

Print at a print shop with a short label instead of email or USB. Files expire on their own.

ProductivityCommunication & messaging

Outdated check252 ms12 / 22
com.machineinbox/machine-inbox

Task-scoped email inboxes for AI agents: read mail, extract verification codes, and reply.

ProductivityCommunication & messaging

Outdated check254 ms12 / 22

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