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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6024 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
CallerKit

Caller ID and phone lookup: names, spam reports, fraud risk score, name/email search.

ProductivityData access / search

Requires authOutdated checkNot measured5 / 22
Camberstack: Google Ads

Hosted MCP for Google Ads, Search Console, GA4, Merchant Center, Tag Manager: approve every change.

Marketing & SalesData access / search

Requires authOutdated checkNot measured5 / 22
Canopy API

Amazon product API & MCP server: search, prices, ratings, sellers, deals, and ASIN lookup by Canopy.

OtherData access / search

Requires authNot measured5 / 22Not checked yet
cars-data.com — Car Specs API

Search, compare & filter 103,372 car variants — 224 specs, 20 languages. Free demo, no key; x402.

Finance & CryptoData access / search

Requires authNot measured5 / 22Not checked yet
Cenogram - Polish Real Estate Prices & Parcel Data

Polish real estate for AI: 8M+ deed transaction prices (RCN) + per-parcel context by cadastral ID

Real Estate & PropertyData access / search

Requires authNot measured5 / 22
Censible

The Australian Census (2011, 2016, 2021) for any suburb, postcode or council, with projections.

Real Estate & PropertyData access / search

Requires authOutdated checkNot measured5 / 22
Central Command

Crypto perps market data, backtests and BloFin trading agents. Free with a key or x402 per call.

Finance & CryptoData access / search

Requires authNot measured5 / 22Not checked yet
Channel3 Shopping

Shopping search across 100M+ products, with every retailer's offer and live price in one place.

E-commerceData access / search

Requires authNot measured5 / 22Not checked yet
ChatterAPI

Live Reddit and X (Twitter) data: search, threads, users, subreddits, leads and mentions.

Marketing & SalesData access / search

Requires authNot measured5 / 22Not checked yet
China Company Registry & USCC Lookup

Chinese company search by English or Chinese name and Unified Social Credit Code (USCC).

Developer ToolsData access / search

Requires authNot measured5 / 22
Chipp Analytics and evals

Chipp: conversations, messages, usage and engagement analytics, end users and their memories, and.

Data & AnalyticsData access / search

Requires authNot measured5 / 22
Chipp Newsletters

Chipp: newsletter topics, audiences, contacts, campaigns and sends

Marketing & SalesData access / search

Requires authNot measured5 / 22
CitedOrNot - AI Search Visibility

AI search visibility for your brand: which AI engines name it, who wins instead, what to publish.

OtherData access / search

Requires authNot measured5 / 22Not checked yet
CityAlert

Free live public-safety incident map: global crime, fire, disaster, weather and news feeds

Data & AnalyticsData access / search

Requires authNot measured5 / 22Not checked yet
Clerkfield

Verify U.S. businesses against state registries and search UCC liens by business or lender.

Developer ToolsData access / search

Requires authNot measured5 / 22Not checked yet
Clonvo

Web search, scraping, crawling, research, a browser agent, and company and people data.

Developer ToolsData access / search

Requires authOutdated checkNot measured5 / 22
Cloudinary Asset Management

Upload, generate, organize, search, and transform images, videos, and files with AI-powered tools.

MediaData access / search

Requires authNot measured5 / 22Not checked yet
CodeQR

Create and manage CodeQR short links, QR codes, and analytics from any MCP client.

Data & AnalyticsData access / search

Requires authOutdated checkNot measured5 / 22
Cofound

MCP-native co-founder directory your AI agent searches, screening inbound pitches for you.

Developer ToolsData access / search

Requires authOutdated checkNot measured5 / 22
CoinCryptoRank MCP

Real-time crypto market data, funding rates, arbitrage and trading tools from 60+ exchanges.

Finance & CryptoData access / search

Requires authNot measured5 / 22Not checked yet
CoinRithm Agent Trading

Keyless prediction-market data across 12 venues plus paper-trading of crypto spot, futures, and PM.

Finance & CryptoData access / search

Requires authNot measured5 / 22Not checked yet
COLA Cloud

Search US TTB alcohol label approvals, permittees and processing times. Read-only; account required.

Developer ToolsData access / search

Requires authNot measured5 / 22
Colorado SOS Business Entity & Registered Agent Search

Colorado Secretary of State business entity search with status and registered agent lookup.

Developer ToolsData access / search

Requires authNot measured5 / 22
Commercializer

Commercial strategy for medical device and life-science companies, read from the governed registers.

HealthcareData access / search

Requires authNot measured5 / 22

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