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

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DiscoveryServer directory

Remote MCP servers

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1394 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
Refract

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

Marketing & SalesAI / LLM tooling

Requires authNot measured5 / 22
Regi MCP by usefulapi

List WhatsApp numbers and templates; send an approved template message in Regi.

Developer ToolsCommunication & messaging

Not measuredNot measured5 / 22Not checked yet
Relay

Business phone and SMS for teams: calls, texts, transcripts, contacts and call flows.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22Not checked yet
RepeatPost

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

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
Rimbra

Deploy apps, run databases and domains, read logs, and send email and WhatsApp messages on Rimbra.

Developer ToolsCommunication & messaging

Requires authOutdated checkNot measured5 / 22
Robbclan

Draft onboarding training and project plans; review Slack suggestions with tenant-scoped MCP.

Real Estate & PropertyCommunication & messaging

Requires authNot measured5 / 22Not checked yet
RogerRat

Real-time chat hub for AI agents — Claude Code, Cursor, Cline, Codex over MCP or REST.

Developer ToolsCode & DevOps

Not measuredNot measured5 / 22
Rotten America Petitions

Find, draft and start verified petitions from a chat; follow signatures and post updates.

OtherOther

Requires authOutdated checkNot measured5 / 22
Samva MCP

Authenticated Samva email and WhatsApp tools, including public documentation and template discovery.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
Scamchecker.nl

Check a suspicious email, SMS, WhatsApp message or link for scam signals (Netherlands, Belgium).

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
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
Schwanki

Language flashcards: list your decks, read cards and review progress, save new decks from a chat.

Developer ToolsCode & DevOps

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
Sendblue

Send messages, read replies, and check delivery and messaging health in your Sendblue workspace.

Developer ToolsCommunication & messaging

Requires authNot measured5 / 22
SenderKit

Build and send email, SMS, and push straight from your AI agent.

ProductivityCommunication & messaging

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
SetSmart

Instagram, WhatsApp and Messenger DMs through official Meta Business APIs.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22
Seu Rastreio

API pública Seu Rastreio no MCP: rastreio, CEP, pedidos, reversa e WhatsApp.

Developer ToolsCommunication & messaging

Requires authNot measured5 / 22Not checked yet
ShapelessAI

AI social media team for founders: posts and short video to LinkedIn, X, Instagram, TikTok and more.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
sharepa

Put chat-built pages online with your own address, forms, calendar bookings, password and stats.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
ShortSync

Let AI agents draft, schedule and publish posts to 17 social platforms, read analytics and reply.

Data & AnalyticsData access / search

Requires authOutdated checkNot measured5 / 22
SignalShelf

Public social, ad library and Google Maps data: TikTok, Instagram, YouTube, X, Facebook and more.

MediaAI / LLM tooling

Requires authNot measured5 / 22Not checked yet
SIMcloud

South African MCP server for airtime, data, SMS, VAS, electricity, balance, and network lookup.

ProductivityData access / search

Requires authNot measured5 / 22
SingIt x402

Chat, web search, page reading and market data; owner-set daily and per-request key limits (USDC).

Finance & CryptoData access / search

Requires authNot measured5 / 22Not checked yet

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