MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

2915 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
CortexPlus

Personal memory layer: files, notes, messages, tasks and email, semantically indexed.

ProductivityCommunication & messaging

Outdated check122 ms12 / 22
Zovo PDF Images

Extract the images embedded in a PDF document into one ZIP file, right in the chat.

MediaFile & docs

Outdated check124 ms12 / 22
Outdated check125 ms12 / 22
Vitextra Knowledge Base

Search and read Vitextra docs, product pages, how-to guides and FAQ.

OtherKnowledge & memory

Outdated check126 ms12 / 22
Field Notes podcast library

Which podcasts and talks a person appeared on, with summaries and chapters. AI, investing, crypto.

Finance & CryptoCode & DevOps

Outdated check127 ms12 / 22
DocuGrip

Find the right PDF tool for any task and get the link. Your document never reaches the server.

Developer ToolsFile & docs

Outdated check128 ms12 / 22
Zovo Photo to PDF

Turns JPG and PNG images into one PDF document.

MediaFile & docs

Outdated check130 ms12 / 22
Zovo Use Case Diagram

Turn a few lines of text into a UML use case diagram document, and check it.

Developer ToolsFile & docs

Outdated check135 ms12 / 22
Zovo Bill Calendar

Make a bill payment calendar from your list of bills: a printable monthly bill calendar.

Finance & CryptoPayments & trading

Outdated check138 ms12 / 22
Private AI Tools

Find the right free browser tool (PDF, image, video, audio, developer) and its link.

MediaFile & docs

Outdated check139 ms12 / 22
ArcadeOps Public Discovery

Read-only ArcadeOps discovery for developer docs, OAuth, OpenAPI and synthetic sandbox.

Developer ToolsCode & DevOps

Outdated check141 ms12 / 22
Zovo Invoice Reader

Turns invoice PDFs into one spreadsheet and checks the tax, totals and money math of each invoice.

Finance & CryptoFile & docs

Outdated check141 ms12 / 22
tinytoolbox

PDF tools + QR over MCP: merge, split, rotate, text, metadata, malicious-content scan.

Developer ToolsFile & docs

Outdated check143 ms12 / 22
DeveloperHub Docs

Search DeveloperHub's own documentation. Every docs site hosted on DeveloperHub serves one at /mcp

Developer ToolsFile & docs

Outdated check144 ms12 / 22
Mayorana

Search mayorana.ch: desktop apps, release notes, plans, and the Rust, LLM and Azure blog.

Developer ToolsCode & DevOps

Outdated check151 ms12 / 22
HUMAN API

Human execution API for AI agents needing voluntary help with physical-world tasks.

Developer ToolsCode & DevOps

Outdated check154 ms12 / 22
Zovo Resume PDF

Turns the facts of your resume into a clean one-column PDF document to print or send.

Developer ToolsFile & docs

Outdated check164 ms12 / 22
Zovo PDF Sign

Puts a visible signature, initials and a date on a PDF document you attach.

Developer ToolsFile & docs

Outdated check164 ms12 / 22
Outdated check166 ms12 / 22
Outdated check173 ms12 / 22
Zovo Group Calendar

Shares a schedule that your group subscribes to once and that stays up to date.

Developer ToolsCode & DevOps

Outdated check173 ms12 / 22
Professor Sausages — Trust & Verification

Email, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402.

ProductivityCommunication & messaging

Responded197 ms12 / 22
CleanSlice

Architecture docs and patterns for NestJS + Nuxt full-stack apps

Developer ToolsCode & DevOps

Outdated check200 ms12 / 22
SukukFi

Live vault metrics and docs for SukukFi, Islamic trade finance on Berachain. Read-only.

Data & AnalyticsData access / search

Responded209 ms12 / 22

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