MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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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

4697 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
Market Intelligence API (core)

Compact 18-tool x402 market data server: token safety, Fed odds, DeFi yields, swap quotes, decisions

Finance & CryptoData access / search

Responded268 ms14 / 22
Funding Radar

Live crypto funding rates on 8 exchanges: events, pairs, spreads, bot conditions, liquidations.

Finance & CryptoPayments & trading

Responded268 ms14 / 22
compatsy home espresso

What fits, with live prices: specs, fit verdicts with rule ids and stock for home espresso.

Finance & CryptoPayments & trading

Outdated check271 ms14 / 22
Aloha Fungi

Functional mushroom shop (PL/EN): live catalog search, recommendations and checkout links.

Finance & CryptoPayments & trading

Responded273 ms14 / 22
EquiReason

US stock research: filed records, filing events, insider trades, 13F; plan research when signed in.

Finance & CryptoPayments & trading

Responded274 ms14 / 22
Tick Mark Books

Look up what bookkeeping software costs a small business a month, ledger included.

Finance & CryptoData access / search

Responded275 ms14 / 22
io.github.imnotamob/solmachina-x402

Solana & Base DeFi intelligence for AI agents over x402: decisions, risk, signed receipts.

Finance & CryptoPayments & trading

Responded277 ms14 / 22
Altair

Free TradingAgents equity research reports and Altair pages; paid signals feed via x402 inside MCP.

Finance & CryptoPayments & trading

Responded279 ms14 / 22
P0: wallet balances and EVM reads

Wallet balances, ERC-20, blocks, transactions, receipts, ENS and payment checks, pay per call

Finance & CryptoPayments & trading

Responded280 ms14 / 22
AgentReady

Is your website ready for AI agents? 0-100 score, A-F grade and fixes. By Crypto Money Maker

Finance & CryptoPayments & trading

Responded280 ms14 / 22
PayGuard

OFAC SDN sanctions screen for crypto addresses, for agents that send payments. By Crypto Money Maker

Finance & CryptoPayments & trading

Responded281 ms14 / 22
Ghana Pay and Tax

Take-home pay, income tax and social security for a salary in Ghana, and VAT with its levies.

Finance & CryptoPayments & trading

Responded281 ms14 / 22
MyCryptoParadise

Search MyCryptoParadise crypto trading education and news, and find its free market tools

Finance & CryptoPayments & trading

Responded282 ms14 / 22
KI Alternativen

Alternativen zu bekannten KI-Tools, mit über Stripe geprüften Umsätzen statt Schätzungen.

Finance & CryptoPayments & trading

Responded284 ms14 / 22
Beste KI Tools

KI-Tools nach Kategorien, mit echten Startdaten und über Stripe geprüften Umsätzen.

Finance & CryptoPayments & trading

Responded284 ms14 / 22
LayerHop

Best-price cross-chain swap quotes across 70 chains (EVM + Solana). Holds no keys, never signs.

Finance & CryptoPayments & trading

Outdated check284 ms14 / 22
compatsy 3D printing

What fits, with live prices: specs, fit verdicts with rule ids and stock for 3D printing.

Finance & CryptoPayments & trading

Outdated check285 ms14 / 22
naulon

Check citations and retractions by DOI, and see the x402 price an AI agent pays to cite a source.

Finance & CryptoKnowledge & memory

Responded286 ms14 / 22
Eagle Virtual USDT & USDC Blacklist Tracker

USDT & USDC blacklist, freeze and seizure records for any wallet. Dated, cited, no risk scores.

Finance & CryptoPayments & trading

Responded289 ms14 / 22
NIGHTSHIFT public

Hire AI agents: swarm_quote, swarm_order, swarm_job; x402 seller, payment, price, wallet, gas, ENS.

Finance & CryptoPayments & trading

Responded290 ms14 / 22
parfum1 Perfume API

parfum1 perfume catalogue: notes, 3/10/30 ml sizes, EUR prices, stock, houses, delivery, returns.

Finance & CryptoPayments & trading

Responded296 ms14 / 22
CryptoKeyhole

Read-only market and on-chain data for Bitcoin, Ethereum and more; on-chain from our own nodes.

Finance & CryptoPayments & trading

Responded297 ms14 / 22
Alternativas IA

Alternativas a las herramientas de IA más conocidas, con ingresos verificados con Stripe.

Finance & CryptoPayments & trading

Responded298 ms14 / 22
io.github.vjshaw/nulucre-wallet-reputation

Wallet trust scores for AI agents. Stellar, XRPL, EVM 81+ chains. OFAC sanctions. x402 payments.

Finance & CryptoPayments & trading

Outdated check299 ms14 / 22

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