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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2945 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
CommSync

One inbox for SMS and email: read threads, search, manage contacts, and send texts and emails.

ProductivityCommunication & messaging

Requires authNot measured4 / 22
Componecat

Software component catalog: search your org's services, docs, APIs, dependencies, and ownership.

OtherData access / search

Requires authOutdated checkNot measured4 / 22
Conduit Mail

Your mailbox for MCP clients: search, read, draft, send, rules and notes. Sending is off by default.

ProductivityData access / search

Requires authNot measured4 / 22
Conecto

The whole back office for your AI agent: CRM, invoices, books, email and more. Pay per action.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22
Conecto Calendar

Booking pages, free times and meetings for your agent. Pay per action.

ProductivityFile & docs

Requires authNot measured4 / 22Not checked yet
Conecto CRM

Contacts, companies and deals, with every email, call and meeting on one record. Pay per action.

ProductivityCommunication & messaging

Requires authNot measured4 / 22Not checked yet
Conecto Email

Inboxes on your business's own subdomain that send, receive and keep threads. Pay per action.

ProductivityCommunication & messaging

Requires authNot measured4 / 22Not checked yet
Conecto Help desk

Support tickets from email, with SLAs, queues and ratings. Pay per action.

ProductivityCommunication & messaging

Requires authNot measured4 / 22Not checked yet
ConnectWise MCP Server and API by Cotlet

ConnectWise managed service provider PSA MCP server: list tickets, read ticket notes, update ticket.

ProductivityFile & docs

Requires authOutdated checkNot measured4 / 22
Constant Contact MCP Server and API by Cotlet

Constant Contact small business email marketing MCP server: get email report.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured4 / 22
ContextLayer

Intelligent context infrastructure for AI teams: knowledge graph, sessions, tasks, documents.

Developer ToolsFile & docs

Requires authNot measured4 / 22Not checked yet
Contextli Voice Notes

Search, browse and read your Contextli voice notes and transcriptions from any MCP client.

MediaData access / search

Requires authNot measured4 / 22
Convert.Online

Convert files between 400+ image, video, audio, document, ebook, archive and font formats.

MediaFile & docs

Requires authOutdated checkNot measured4 / 22
Copix

Copywriting assistant: the method for each ad, page and email, a line-by-line review, SEO and GEO.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured4 / 22
Corebee Customer Support

Hosted support inbox over MCP: answer web chat, WhatsApp, email and SMS, manage knowledge.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured4 / 22
CoreNexis API

PDF from HTML or Markdown, OCR, email validation, image conversion and hosting, QR and barcodes.

MediaFile & docs

Requires authNot measured4 / 22Not checked yet
Cormak.app

Manage websites, tasks, AI agents, employees and media with scoped OAuth and spending approvals.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured4 / 22
Corvio

Cloud notes and AI workspace: search your notes and save AI answers as editable, shareable docs.

ProductivityData access / search

Requires authNot measured4 / 22
Couryo

Transactional email API: send, read delivery timelines, explain bounces, manage domains (OAuth).

ProductivityCommunication & messaging

Requires authNot measured4 / 22
ctlsurf

System-of-record notebook for AI coding agents: pages, datastores, tasks, skills over MCP.

Developer ToolsCode & DevOps

Requires authNot measured4 / 22Not checked yet
Curatively

Search, read and save to your private vault of images, links and notes.

MediaData access / search

Requires authOutdated checkNot measured4 / 22
Custodo

Documents, mail, tasks, CRM and expenses of Italian businesses, from the Custodo archive.

Marketing & SalesFile & docs

Requires authNot measured4 / 22
Customermates

Native MCP access to CRM contacts, organizations, deals and tasks with user permissions.

Developer ToolsCode & DevOps

Requires authNot measured4 / 22Not checked yet
CV Booster by MT-Transition

Score and improve a CV, match it to a job offer, check figures, export Word/PDF.

OtherFile & docs

Requires authOutdated checkNot measured4 / 22

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