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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1451 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
Chatfuel

Create AI agents that answer customers on WhatsApp, Instagram, Messenger, TikTok and web chat.

Developer ToolsCommunication & messaging

Requires authNot measured3 / 22
Chatty: WhatsApp Business

Your WhatsApp Business inbox in Claude or ChatGPT: who's waiting, follow-ups and replies.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
Cloud for Bots

Sandboxes, storage, secrets, queues, timers, locks, inboxes and run ledger for AI bots. One MCP.

Finance & CryptoCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Company and Lead Research

Emails and socials from company sites, WHOIS, live job listings, Hacker News and App Store search.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
Data Breach Notification Deadlines (bulk, Apify)

Bulk breach notice deadline checks: US states, SEC, HIPAA, GDPR, UK, per check billing via Apify.

Finance & CryptoCommunication & messaging

Requires authNot measured3 / 22Not checked yet
dmswift

Instagram and Facebook Pages for AI agents: publish, comments, DM by keyword, inbox, insights.

Developer ToolsCommunication & messaging

Requires authOutdated checkNot measured3 / 22
DNS Lookup — Bulk SPF, DKIM, DMARC & Mail Policy Findings

Check DNS records and email authentication (SPF, DKIM, DMARC) for domains, as findings by severity

Developer ToolsCommunication & messaging

Requires authNot measured3 / 22Not checked yet
DNSai

DNS, email-security and website intelligence for your domains: SPF/DKIM/DMARC, changes, subdomains.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
DocDigest

Corporate email and chat thread summarization parser.

Developer ToolsCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Domain Intelligence Check

Domain enrichment: email provider, DMARC/SPF/DKIM, WHOIS age, SSL, hosting and CDN per domain.

Developer ToolsCommunication & messaging

Requires authOutdated checkNot measured3 / 22
Eaglecross

Find buying signals for B2B leads and write personalized cold-email icebreakers.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured3 / 22
Echoly

Schedule posts to X and Telegram channels from your AI app. Posts wait for your approval.

Developer ToolsCommunication & messaging

Requires authOutdated checkNot measured3 / 22
Edge Actors: email verifier, DNS facts, URL to Markdown

Email verifier ($0.60/1k), SPF/DMARC/MX facts, URL to Markdown, on your own Apify account.

Developer ToolsCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Email List Validation Email Verification

Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Email Verifier

Verify emails: syntax, MX, disposable, role, typo fix, optional SMTP probe, SPF/DMARC.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
email59

Send transactional email from AI agents: sign up by email code, no domain or DNS setup.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Emelia

Run Emelia cold email and LinkedIn campaigns, lists, enrichment and your Emelia inbox from AI.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured3 / 22
EnvoAPI

People, company, job and LinkedIn post data, plus email finding and verification.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
EpicTexting

Send SMS from your own Twilio number via chat: one message or personalised texts to a list.

Developer ToolsCommunication & messaging

Requires authOutdated checkNot measured3 / 22
EZTexting MCP

Official EZTexting MCP server: SMS/MMS messaging, contacts, workflows, reports.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured3 / 22
Facebook Page Contact Finder

Get email, phone, website and Instagram from public Facebook business pages for lead generation

Marketing & SalesCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Firmfold: Company Enrichment API

Firmfold: company enrichment by domain/email/name: logo, tech, contacts, jobs, firmographics.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Flagram

Ad marketplace: search Telegram/VK/Max channels by topic, geo, price; reach, ER, CPV stats.

Developer ToolsCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Flow Productivity

Notes, kanban tasks, and a capture inbox: read and create Flow data with a personal token.

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet

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