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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6022 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
com.peek/mcp

Build travel itineraries with Peek's 300k+ experiences. Search, details, and availability.

TravelData access / search

Responded1695 ms10 / 22
GameDev.net

Search and cite GameDev.net forums, tutorials, postmortems, and game-industry news.

MediaData access / search

Responded2621 ms10 / 22
MCP Registry Search: Find, Discover & Install MCP Servers & Tools | Directory, Catalog, Marketplace

MCP registry & directory: search, find & install 31k+ MCP servers & tools. Catalog and marketplace.

Developer ToolsData access / search

Unreachable116 ms10 / 22
ROAS Expert free AI SEO audit

Free AI SEO audit, product page check, agent readiness check and site comparison. No key.

Marketing & SalesData access / search

Unreachable94 ms10 / 22
CedarGrant

Open federal grants from Grants.gov, plus a kit to draft and review applications in your assistant.

GovernmentData access / search

Responded118 ms9 / 22
IFSO

Conditional USDG payments on Robinhood Chain: look up, explain and prepare if-so payments.

Finance & CryptoData access / search

Unreachable732 ms9 / 22
Applystead

Search open jobs from employers' own career sites: roles, companies and posting status.

ProductivityData access / search

Unreachable1136 ms8 / 22
Was ist MCP? Demo-Server

Plain-language MCP explainer in German: search and read was-ist-mcp.ch. Most tools need no login.

Developer ToolsData access / search

Unreachable118 ms7 / 22
PearlGraph

Open, source-backed Uganda tourism data: parks, fees, road routes, trips, lodges, districts.

TravelData access / search

Unreachable363 ms7 / 22
Salsmart — Israeli Grocery Prices

Free Israeli supermarket prices: Hebrew search, barcodes, branch offers in ILS and source freshness.

OtherData access / search

Unreachable300 ms7 / 22
Unreachable689 ms7 / 22
ScoutRail

Find business leads and live opportunities for a business, with the proof and the next step.

Marketing & SalesData access / search

Unreachable339 ms7 / 22
Space Kitty Archive

Frontier-research archive: free catalog and search; premium dossiers cost $0.20 per call via x402.

Finance & CryptoData access / search

Unreachable78 ms6 / 22
chathome.lu — Luxembourg Real Estate

Luxembourg real estate for AI agents: property search, price estimates, market data, commutes.

Real Estate & PropertyData access / search

Unreachable577 ms6 / 22
Mostly Right

Search, sample and query open reproducible datasets published as immutable Parquet with schemas.

Data & AnalyticsData access / search

Unreachable636 ms6 / 22
ai.iturri/market-data

Verified market data for AI trading agents: quality-flagged candles, funding, OI, order flow. x402.

Finance & CryptoData access / search

Requires authNot measured6 / 22Not checked yet
ai.windsock/windsock

Aircraft valuations, registry lookup, cost of ownership, market metrics, reports and logbooks.

Data & AnalyticsData access / search

Requires authNot measured6 / 22
Affiliate Networks MCP

Affiliate network reporting in your AI client. Bring your own keys. Most adapters experimental.

Marketing & SalesData access / search

Requires authNot measured6 / 22
AgentMash

All your bookmarks in one library. Share them with your AI agents. Read-only search over your saves.

ProductivityData access / search

Requires authNot measured6 / 22Not checked yet
Aide

AI customer service: set up an AI support agent, search knowledge, look up orders, answer customers.

Developer ToolsData access / search

Requires authOutdated checkNot measured6 / 22
Amazon Trends API

Amazon product search volume and best-seller trends. Free key at trendsapi.ai

OtherData access / search

Requires authNot measured6 / 22Not checked yet
Amazon Trends MCP

Amazon product search demand over time, with growth for any keyword. Free key at trendsmcp.ai

Developer ToolsData access / search

Requires authNot measured6 / 22Not checked yet
Apogee: Bulk Ad Launcher for Meta, TikTok & Snapchat

Bulk-launch and manage ads across many Meta, TikTok and Snapchat ad accounts for agencies.

Marketing & SalesData access / search

Requires authNot measured6 / 22
Buzzmark

A ghostwriter that writes, plans and schedules social media posts in your business's own voice.

Marketing & SalesData access / search

Requires authNot measured6 / 22

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