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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2952 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
LeadBoxer: company and contact enrichment, IP to company

Company and contact enrichment: firmographics from a domain or IP, profiles from a work email.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
Leads Locales de Google Maps — Email, Teléfono, Web y CNPJ

Extrae negocios locales de Google Maps en Brasil con teléfono, email, sitio web y CNPJ.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured3 / 22
Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun

Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

ProductivityCommunication & messaging

Requires authNot measured3 / 22Not checked yet
Liminary

Your AI's memory for what you actually know: recall across your documents, notes, and meetings

ProductivityFile & docs

Requires authOutdated checkNot measured3 / 22
LinkupAPI

Run LinkedIn, email, WhatsApp and iMessage outreach from any MCP client.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured3 / 22
lintlab PDF To Markdown

Convert PDF URLs to clean Markdown and text for RAG and LLM input. Pay per PDF on Apify.

Developer ToolsFile & docs

Requires authNot measured3 / 22Not checked yet
Living Brain

Turn your notes, links and conversations into a Living Brain your AI tools share and build on.

ProductivityFile & docs

Requires authNot measured3 / 22
Loom

Manage Loom projects, tasks, bugs, defects, clients and phases from AI assistants

Developer ToolsCode & DevOps

Requires authNot measured3 / 22Not checked yet
LooperTask

AI-native Kanban board — connect Claude to claim, work and move your tasks over MCP.

Developer ToolsAI / LLM tooling

Requires authOutdated checkNot measured3 / 22
Loops

Manage Loops contacts, mailing lists, campaigns, and transactional email from your Loops account.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured3 / 22
LowlandData Company Identity

GDPR-clean company enrichment: domain, logo, socials, EU VAT and email-security from a name.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
LPD eIDAS Stamp

Stamps files/text with eIDAS & Polygon. Requires API Key. Docs: laprueba.digital/mcp/docs

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured3 / 22
mailfloss

Email verification for AI agents: verify addresses and lists, check credits, manage integrations.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
MailInApp

Build and send interactive email campaigns: studio editing, contacts, sending, results.

Marketing & SalesCommunication & messaging

Requires authOutdated checkNot measured3 / 22
MarleyFetch

Let AI agents send email from your own Gmail, Microsoft 365 or SMTP inbox, with guardrails.

ProductivityCommunication & messaging

Requires authNot measured3 / 22
MCP for iCloud

Read and send iCloud Mail, manage iCloud Calendar. Needs an approved account at icloud.mcp.visin.ch.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured3 / 22
MCPBinder

Read project context and manage tasks in MCPBinder, with access you control.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured3 / 22
Media & Document AI Tools MCP

Files to text for AI agents: audio/podcast transcription, OCR, video frames, screenshots, web to MD.

MediaFile & docs

Requires authNot measured3 / 22Not checked yet
MeisterTask

Create and manage MeisterTask projects, tasks, and notes from your AI assistant.

ProductivityFile & docs

Requires authOutdated checkNot measured3 / 22
Melt Peer Review

Send AI-made document changes for human review, then read the decisions back.

OtherFile & docs

Requires authNot measured3 / 22
Mem

Securely search, create, and organize your Mem notes and collections from AI assistants.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured3 / 22
Mint

Work journal for coding agents: worklogs, tasks, project state and costs across projects.

Developer ToolsCode & DevOps

Requires authNot measured3 / 22Not checked yet
Morfee

Turn an HTML template plus JSON into a finished PDF: a quote, invoice, work order or certificate.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured3 / 22
NourishVedha: Clinical Nutrition & Dietitian AI

Practitioner-led nutrition specialist. Access patient care profiles, dietitian notes & logs.

HealthcareData access / search

Requires authOutdated checkNot measured3 / 22

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