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.

Connect your agent

40673 servers

Ordered by checks passed
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
LabelQueue — Avery Label Dimensions, Margin & Bleed Layout Engine

Look up exact Avery & standard sheet label dimensions, pitch, margins & print layout specs.

Developer ToolsData access / search

Responded84 ms15 / 22
Metro Quadrado

Preço do m² por bairro em 6 cidades de Santa Catarina, Brasil. Dados abertos do Minuto Jaraguá.

OtherOther

Responded84 ms15 / 22
Forkmate

Free AI calorie & macro tracker: tell your AI what you ate and it logs it to your private food diary

OtherOther

Responded84 ms15 / 22
Partelisto

Guest check-in, SES.HOSPEDAJES status, and booking creation for Spanish vacation rentals. No PII.

TravelCode & DevOps

Responded85 ms15 / 22
Zero Slop

Score and rewrite AI-assisted prose while preserving names, numbers, quotes, links, and facts.

Developer ToolsCode & DevOps

Responded85 ms15 / 22
Library of Alexandria

Classic books in 25 languages: search, print editions, the free shelf. Read-only, no sign-in.

Developer ToolsCode & DevOps

Responded85 ms15 / 22
GingerLive

GingerLive livestream ad formats, network reach stats, campaign case studies, and streamer program.

Marketing & SalesData access / search

Responded85 ms15 / 22
Palimpalem

Build a free website draft for a small local business from a description or its old website.

OtherOther

Responded85 ms15 / 22
CurrencyCore

Live FX rates, conversion, IMF PPP, and historical currency analytics.

Finance & CryptoCode & DevOps

Responded86 ms15 / 22
Books Like This

Books like one you enjoyed, a book's details and any film of it, and an author's books.

Developer ToolsCode & DevOps

Responded86 ms15 / 22
Crypto Link Check

Check crypto links for phishing lookalikes of wallets, exchanges and dapps before wallet connect

Finance & CryptoPayments & trading

Responded86 ms15 / 22
Veritaset

Mobile, home internet and energy prices in 34 countries, read on operators' pages and dated.

OtherOther

Responded86 ms15 / 22
Claude API Pricing

Current Claude API prices and cost estimates with prompt caching and Batch API pricing.

OtherAI / LLM tooling

Responded86 ms15 / 22
Cheapest Price

The lowest current price for a product, checked live, with the typical price and links to compare.

Developer ToolsCode & DevOps

Responded87 ms15 / 22
Bible Swipe

A Bible reading a day, line by line, any passage by reference, and search.

Developer ToolsCode & DevOps

Responded87 ms15 / 22
Zaps

Photos and a brief in, finished social-media designs out. First design free, no account.

Marketing & SalesData access / search

Responded87 ms15 / 22
Havoptic AI Release Intelligence

Release intelligence for AI coding tools: releases, typed changes, breaking changes, cadence.

Developer ToolsCode & DevOps

Responded87 ms15 / 22
Rozo Checkout

Pay OpenRouter and Coinbase payment links with USDC, USDT, ETH, BNB, POL, SOL or BTC Lightning.

Finance & CryptoPayments & trading

Responded88 ms15 / 22
Grandet

Cheapest API for any model across official, inference and relay providers; find free credits

Developer ToolsCode & DevOps

Responded88 ms15 / 22
AI application security research and assessments

Read AI security guides and lab research, and request an LLM or AI agent security assessment.

Developer ToolsAI / LLM tooling

Responded88 ms15 / 22
Agentery

Find and compare 41,000+ AI agents, MCP servers and APIs, with daily prices and the AEPI price index

OtherAI / LLM tooling

Responded88 ms15 / 22
Shared Forest

Plant or sponsor trees in a shared forest that grows from its traffic. Sponsoring uses OAuth.

Developer ToolsCode & DevOps

Responded89 ms15 / 22
Archestack

Search, rank and compare open-source AI projects with Archestack's open data

Developer ToolsCode & DevOps

Responded89 ms15 / 22
Perfboard Designer

Design perfboard and stripboard layouts, check the wiring and get a link to open them in the editor.

Developer ToolsCode & DevOps

Responded89 ms15 / 22

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