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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1560 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
SMSPVA Documentation

SMSPVA API docs: search and code examples for SMS activation, number rental and private email.

ProductivityCommunication & messaging

Outdated check614 ms12 / 22
x402 Domain Lookup & DNS Email Auth

Domain lookup (DNS records + RDAP registrar/age/expiry), bulk, and SPF/DKIM/DMARC audit via x402.

ProductivityCommunication & messaging

Outdated check617 ms12 / 22
RoxSkin HYROX

HYROX race calendar, race-weekend city guides, training guides and athletes to sponsor.

ProductivityFile & docs

Outdated check621 ms12 / 22
Nityaflow

Build WhatsApp, Sheets and Gmail automations for Indian businesses; check GST credit.

ProductivityCommunication & messaging

Outdated check622 ms12 / 22
digger.fans

Certify Digger (2026) cinema viewings from original ticket emails; leaderboard, fan cards, theaters.

ProductivityCommunication & messaging

Outdated check705 ms12 / 22
Run Memory

Checkpoint and resume for AI agent runs, so crashed runs pick up where they left off.

ProductivityKnowledge & memory

Responded841 ms12 / 22
ai.powerline/inbox-preview

Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them

ProductivityCommunication & messaging

Outdated check873 ms12 / 22
Execution Evidence Lab

Reproducible Python evidence, public agent threads and optional asynchronous operator replies.

ProductivityAI / LLM tooling

Outdated check895 ms12 / 22
VeritaHire live jobs

Live US jobs from employers' own career sites, still-open checks, competitive hiring reports.

ProductivityFile & docs

Outdated check929 ms12 / 22
network.lucie/sync

Check availability, book meetings and find group times — without sharing your calendar.

ProductivityFile & docs

Outdated check936 ms12 / 22
Nova Inbox Agent by Nova (CIVAI)

Read and send mail from your Nova Inbox (@nova.civai.co) for OTPs, directory signups, and inbound m…

ProductivityCommunication & messaging

Outdated check954 ms12 / 22
io.github.Anon2052/doc-convert-mcp

Document conversion MCP server: PDF to Markdown, image OCR, spreadsheet parsing.

ProductivityFile & docs

Outdated check965 ms12 / 22
Mila

Create and manage documents, spreadsheets, and presentations from your AI assistant.

ProductivityFile & docs

Outdated check1164 ms12 / 22
Vokolla Press Release Agent

Draft press releases from notes, run editorial checks, compare packages and track live coverage.

ProductivityFile & docs

Outdated check1181 ms12 / 22
cn.pianam/calendar-mcp

MCP server for China public holidays and lunar calendar: solar-lunar conversion and yearly schedule.

ProductivityFile & docs

Outdated check1218 ms12 / 22
MailX Email Deliverability

Check SPF/DKIM/DMARC/BIMI, blacklists, SMTP/IMAP; DNS lookups; generate email DNS records.

ProductivityCommunication & messaging

Outdated check1442 ms12 / 22
com.domainposture/mcp

Remote MCP server: 19 domain-hygiene and email-auth tools (DNS, SPF, DMARC, DKIM, TLS).

ProductivityCommunication & messaging

Outdated check1466 ms12 / 22
LifeStep Workbook, Email, QR and DNS Tools

Inspect XLSX/XLSM workbooks, validate email, generate SVG QR codes, and look up domain DNS and TLS.

ProductivityData access / search

Outdated check1498 ms12 / 22
Whenly — group meeting scheduler for AI agents

Find a time a group can meet: no-login availability poll that picks the best meeting slot.

ProductivityFile & docs

Outdated check1703 ms12 / 22
Fragrance & Perfume MCP (Noteboxd)

Fragrance & perfume MCP: search fragrances, notes, accords, brands, perfumers, reviews & charts.

ProductivityData access / search

Outdated check2599 ms12 / 22
Agile Today

Project management methodology graph: route planning, stage-gate decisions and plan checks.

ProductivityFile & docs

Outdated check2770 ms12 / 22
com.printinglabs/printing-labs

Corporate gifting: catalog search, bulk GST pricing, quotes, meetings, HR welcome-kit automation.

ProductivityAutomation & workflows

Outdated check3524 ms12 / 22
person.work — Agent-maintained CV

Maintain your CV with your agent. Review changes, then share one record as web, PDF and open data.

ProductivityFile & docs

Outdated check3728 ms12 / 22
NumProof

Deterministic signed verification of numeric & financial claims for AI agents & spreadsheets.

ProductivityFile & docs

Responded198 ms12 / 22

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