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.

Connect your agent

1494 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
QueryAction

Site growth from your agent: GA4, Search Console, PageSpeed, SEO research and weekly reports.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
Raechly

Run cold email from your agent: mailboxes, warmup, campaigns, contacts, replies and deals.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured5 / 22
Rampify

Turn your coding agent into a marketing agent: search data, specs to build, fixes verified by scan.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
RedditGrow

Reddit growth toolkit — opportunities, replies, cold DMs, brand mentions, SEO, autopilot.

Marketing & SalesData access / search

Requires authNot measured5 / 22Not checked yet
Refract

Draft, approve and schedule social media posts from Claude, ChatGPT, Cursor and other AI apps.

Marketing & SalesAI / LLM tooling

Requires authNot measured5 / 22
Reletter

Search and analyze 7M+ newsletters, issues, contacts, and chart rankings from Reletter.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
RepeatPost

Schedule and publish social media posts, write captions and create branded graphics with RepeatPost.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
RestoSignals

Pre-opening US restaurant and bar leads, scored from liquor, permit and business filings.

Marketing & SalesData access / search

Requires authNot measured5 / 22Not checked yet
Roasby

Manage Google, Microsoft, ChatGPT and Meta Ads safely: previewed, logged, revertible changes.

Marketing & SalesAI / LLM tooling

Requires authOutdated checkNot measured5 / 22
RuSender

Manage email campaigns, contacts and deliverability analytics in RuSender from an AI assistant.

Marketing & SalesCommunication & messaging

Requires authNot measured5 / 22
Scalelist

Find B2B leads with verified work emails and mobile numbers from your AI assistant.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured5 / 22
Schedule & Chill

A free social media scheduler your AI tools can post through — LinkedIn, Bluesky, Mastodon, YouTube.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
Scrapemint Lead Data

Company enrichment, email finding, tech stack, new store leads, press requests and bid notices

Marketing & SalesCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Scrollhound

Your AI reads comments, threads, transcripts and ads on 11 platforms, and links every quote.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
Searcher OS

AI agent access to your Searcher OS deal feed, pipeline, buy boxes, CIM analysis, and broker CRM.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
Searcherries: AI Visibility & SEO

Connect AI agents to your AI visibility and SEO data: competitors, citations, GSC, GA4, Bing.

Marketing & SalesKnowledge & memory

Requires authOutdated checkNot measured5 / 22
SelieeAI

Run your business from Claude: websites, SEO, ads, social, payments, leads and AI media.

Marketing & SalesPayments & trading

Requires authOutdated checkNot measured5 / 22
Send4

Ask about and change your Send4 flows, campaigns, conversations, leads and calendar.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
SendFast

Agent-native marketing email: draft, edit, screenshot, and send from your verified domain.

Marketing & SalesCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Sendinel

AI-controlled email ops for campaigns, contacts, segments, analytics, and sending.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured5 / 22
Sendsets

Cold email API for AI agents: connect mailboxes, warm up, run campaigns and handle replies.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured5 / 22
SEO Perception

Search Console, crawl, and SEO to-dos in Cursor and Claude. OAuth or token; close to-dos optionally.

Marketing & SalesBrowser & web scraping

Requires authOutdated checkNot measured5 / 22
SEO Rank Fixer

Google Search Console performance and the SEO fixes worth the most clicks, ranked for your sites.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
SEO Trends API

Spot keyword demand rising or fading across search and social. Free key at trendsapi.ai

Marketing & SalesData access / search

Requires authNot measured5 / 22Not checked yet

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