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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2930 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
Dead Simple Email

Give an agent its own inbox: send, receive, and pull signup codes from real email.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
demo.st

Reserve a subdomain, upload .zip via MCP, get a link. Optional document API at api.demo.st.

Developer ToolsFile & docs

Requires authNot measured5 / 22Not checked yet
devBoard

Tasks, comments, start and finish work, and time tracking in devBoard, a small-team tracker.

OtherOther

Requires authNot measured5 / 22Not checked yet
DevInbox

Real email inboxes for AI agents: create inboxes, catch verification codes, extract OTPs, reply.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Diamond Painting Converter

Find your purchased diamond painting patterns and download the PDF with DMC colour legend.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured5 / 22
Diktuy (Диктуй)

Search meetings, transcripts and dictations in Diktuy: speakers, timestamps, tasks. Russian-first.

ProductivityData access / search

Requires authNot measured5 / 22
Dilligence — certidões de empresas

Certidões negativas de empresas (CNPJ) num pedido: pede nos órgãos, lê cada PDF e resume.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
Dilohost

Hosting run by your AI agent: publish websites, apps, databases, domains and email from chat.

Developer ToolsDatabase

Requires authOutdated checkNot measured5 / 22
Divblox MCP

Define requirements, plan tickets and tasks, and track delivery with your Divblox projects.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured5 / 22
DocKit

Extract text and metadata from PDFs; convert Markdown or text to PDF

Developer ToolsFile & docs

Requires authNot measured5 / 22Not checked yet
Doconda

Convert, create and edit Word, PowerPoint, Excel and PDF documents from any AI agent.

Developer ToolsFile & docs

Requires authNot measured5 / 22Not checked yet
DocSpring

Fill PDF and Word templates, generate PDFs and Word documents, and collect e-signatures.

Developer ToolsFile & docs

Requires authOutdated checkNot measured5 / 22
DocSpring (EU)

DocSpring for EU accounts: fill PDF and Word templates, generate PDFs, and collect e-signatures.

Developer ToolsFile & docs

Requires authOutdated checkNot measured5 / 22
Document & media tools (Apify)

Documents to Markdown and PDF, OCR, transcription, TTS, screenshots, domain checks, video frames.

MediaFile & docs

Requires authOutdated checkNot measured5 / 22
Document to JSON – PDF Invoice/Statement/Contract Parser

Turn any PDF into structured JSON via AI + OCR: invoices, bank statements, contracts.

Finance & CryptoFile & docs

Requires authNot measured5 / 22Not checked yet
Document to Markdown

PDF/DOCX/XLSX to markdown + RAG chunks, $0.001/page; failed files never charged.

Developer ToolsFile & docs

Requires authNot measured5 / 22Not checked yet
Documents to Data (PDF to Markdown, document to JSON)

Turn PDFs, documents, podcasts and drone photos into Markdown, structured JSON, summaries, reports.

MediaFile & docs

Requires authNot measured5 / 22Not checked yet
DocVerdict

PDF, photo, email, and file comparison evidence checks with plain-language reports.

MediaCommunication & messaging

Requires authNot measured5 / 22Not checked yet
DOCX.now MCP Server

Convert DOCX documents to and from PDF, TXT, HTML, ODT, JPG and RTF.

Developer ToolsFile & docs

Requires authNot measured5 / 22Not checked yet
Domain Lab

Track domain expiry, DNS, SSL and email security across registrars, and explain what changed.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
DomainDNA: Tech Stack Detector, WHOIS & Domain Age API

DomainDNA: a domain's tech stack, email security (MX/SPF/DMARC), TLS expiry and age in one record.

Developer ToolsCommunication & messaging

Requires authNot measured5 / 22Not checked yet
DomainDNA: Tech Stack Detector, WHOIS & Domain Age API

DomainDNA: a domain's tech stack, email security (MX/SPF/DMARC), TLS expiry and age in one record.

Developer ToolsCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Dooit

Read and run a user's task board: tasks, schedules, projects, and weekly/monthly/yearly goals.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22
Doriku

Shared control plane for AI coding agents — tasks, memory, decisions, file locks. 12 tools.

Developer ToolsKnowledge & memory

Requires authNot measured5 / 22Not checked yet

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