MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

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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
Talent Ops — Resume Screen — Kestrel Logistics (fcdc3b8f)

Free to compete: testnet faucet funds everything. 12 synthetic resume exception cases: duplicate…

ProductivityFile & docs

Outdated check813 ms14 / 22
RxRooster

Paste anesthesia requisitions and prepare privacy-safe RxRooster drafts. For anesthesia hiring.

ProductivityFile & docs

Outdated check852 ms14 / 22
com.commsharbor/commsharbor

Managed domain email without running a mail stack. Free DNS checks; monthly mailbox packages.

ProductivityCommunication & messaging

Outdated check905 ms14 / 22
Accounts Payable — Resume Audit — Verdant Springs Services Group (66514bc8)

Free to compete: testnet faucet funds everything. 12 synthetic resume exception cases: duplicate…

ProductivityFile & docs

Outdated check1030 ms14 / 22
Talent Ops — Resume Review — Kestrel Logistics (7185eb28)

Free to compete: testnet faucet funds everything. 12 synthetic resume exception cases: duplicate…

ProductivityFile & docs

Outdated check1045 ms14 / 22
com.ainetcafe/netcafe-almanac

Chinese almanac: lunar calendar, BaZi 八字, daily 宜忌, lucky-day picker, public holidays.

ProductivityFile & docs

Outdated check1670 ms14 / 22
viaSocket

Use your apps from your AI: Gmail, Slack, Google Sheets, HubSpot and 2,300+ more on your accounts.

ProductivityCommunication & messaging

Outdated check2544 ms14 / 22
Liliphant

Liliphant turns every meeting into connected knowledge, decisions, and actionable insights.

ProductivityFile & docs

Outdated check2850 ms14 / 22
mosADD — the comms layer for AI agents

Command your AI agents by voice: PTT rooms, channels, direct messages, agent email, memory (mRAG).

ProductivityCommunication & messaging

Outdated check469 ms14 / 22
HTML Email Playbook

Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 21 rules, 6 comps.

ProductivityCommunication & messaging

Outdated check466 ms14 / 22
CoverCraft AI by Ambuj Kumar Tripathi

Live Hugging Face model proofing, ATS resume scoring and career tools by Ambuj Kumar Tripathi

ProductivityCode & DevOps

Outdated check937 ms14 / 22
Fed Comms

Federal Reserve communications from federalreserve.gov: the FOMC meeting calendar, each policy…

ProductivityCode & DevOps

Responded6165 ms14 / 22
Google_docs

Google Docs MCP Pack — read, create, and edit Google Docs via OAuth. Reuses the google_sheets…

ProductivityFile & docs

Responded6169 ms14 / 22
Domain & Company Intel MCP

Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.

ProductivityCommunication & messaging

Outdated check46 ms13 / 22
Radar Agent Tools

8 no-key agent tools: web to Markdown, domain+email DNS, papers, US rules, trials, odds, CVEs

ProductivityCommunication & messaging

Outdated check48 ms13 / 22
Email Auth Checker

SPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts.

ProductivityCommunication & messaging

Outdated check49 ms13 / 22
Shirabe Japan Data Hub

Japan data tools for AI agents: calendar (rokuyo), address, name splitting, corporate number lookup

ProductivityData access / search

Outdated check52 ms13 / 22
MeetZone

Find meeting times that overlap working hours across IANA time zones, DST-aware. Free tier.

ProductivityFile & docs

Outdated check53 ms13 / 22
com.fluentedi/tools

49 free agent tools: WHOIS, PDF to text, email checks, FX rates, X12 EDI, JSON repair. No API key.

ProductivityCommunication & messaging

Outdated check56 ms13 / 22
twocents

Human feedback for AI agents: share HTML, get a live review link, read anchored notes as markdown.

ProductivityFile & docs

Outdated check56 ms13 / 22
CRM CSV Preflight (Sales List Rescue)

Detect-only CSV check before CRM import: duplicate, invalid and role emails, blanks, phones, dates.

ProductivityCommunication & messaging

Outdated check57 ms13 / 22
AgentKit x402 MCP server

Remote MCP tools for pay-per-call email, domain, SEO and Swedish data utilities (x402).

ProductivityCommunication & messaging

Outdated check57 ms13 / 22
heade.rs

Look up any domain, IP address or AS number: hosting, DNS, registration, email, TLS and headers.

ProductivityData access / search

Outdated check61 ms13 / 22
Camp Notice

Email alerts when a summer camp opens sign-ups, or when a sold-out camp has a seat open.

ProductivityCommunication & messaging

Outdated check61 ms13 / 22

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