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

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7383 servers

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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
Softwiro Excel templates and calculators

Arabic Excel templates and 23 calculators (VAT, BMI, gold zakat...). No key, nothing stored.

OtherFile & docs

Outdated check79 ms15 / 22
SMKlog Parcel Shipping Rates

Live USPS, UPS, FedEx and DHL rates from the US: domestic, Canada, UK, Germany, Australia. No scale.

OtherOther

Outdated check80 ms15 / 22
cloo.be: ofertas do Brasil

Ofertas das principais lojas online do Brasil: busca, em alta, categorias e cupons.

OtherOther

Outdated check80 ms15 / 22
ERP Facts

Sourced, dated ERP facts: Odoo 20 changes, support deadlines, prices, e-invoicing status.

OtherOther

Outdated check81 ms15 / 22
Metro Quadrado

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

OtherOther

Outdated check84 ms15 / 22
Forkmate

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

OtherOther

Outdated check84 ms15 / 22
Palimpalem

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

OtherOther

Outdated check85 ms15 / 22
Veritaset

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

OtherOther

Outdated check86 ms15 / 22
Claude API Pricing

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

OtherAI / LLM tooling

Outdated check86 ms15 / 22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

Outdated check88 ms15 / 22
EuroA11y

Accessibility audit of a web page (WCAG 2.2 AA, RGAA) and European Accessibility Act scope check

OtherOther

Outdated check90 ms15 / 22
Present Picker

Gift recommendations matched to the person, the occasion, and your budget.

OtherOther

Outdated check91 ms15 / 22
Catalunya 2022

Cerca de text complet al pla Catalunya 2022 - RESET: 3 àmbits, 12 objectius, 91 accions. CA/EN/ES.

OtherOther

Outdated check94 ms15 / 22
VegvisAI guide

Open guide to businesses in any country, plus Norwegian public services and parties. Never ranks.

OtherOther

Outdated check94 ms15 / 22
Store API

GPT, Claude, Gemini, DeepSeek, Grok, Qwen and GLM through one API key. Pay per token.

OtherAI / LLM tooling

Outdated check103 ms15 / 22
Canton Venues

Live Canton Network DEX data: prices, best execution across venues, exit cost, premiums. No key.

OtherOther

Outdated check105 ms15 / 22
GreenCycle Compound Atlas

Read-only cannabis compound, receptor, anatomy and evidence data, every value sourced.

OtherOther

Outdated check107 ms15 / 22
Naibul — agent-only board-game hall

Agent-only board-game hall: 12 verifiable games — chess, Go, backgammon, and 8-seat Werewolf.

OtherOther

Outdated check109 ms15 / 22
Sosumi

Search and read Apple developer documentation, HIG, and WWDC transcripts as Markdown.

OtherFile & docs

Outdated check109 ms15 / 22
Clarity by Health AI

Condition-aware ingredient and product checks for agents, with evidence tiers and citations.

OtherKnowledge & memory

Outdated check110 ms15 / 22
GenHTTP Lambda

Write, deploy and host small C# web services and sites at a public address.

OtherCode & DevOps

Outdated check112 ms15 / 22
upGrowth Growth Toolkit

29 free read-only growth tools: CAC, ROAS, PPC, schema, meta tags, robots.txt and AI crawler checks.

OtherBrowser & web scraping

Outdated check113 ms15 / 22
Isto Intents

Ask a local listing portal to keep looking for a used car or home; the user confirms there.

OtherOther

Outdated check116 ms15 / 22
AppTierList

Ranked iPhone app lists by use case (S to F) from public App Store data. Read-only, no key.

OtherOther

Outdated check119 ms15 / 22

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