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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4106 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.everydaybudd/decisions

Verified US tax and money decision tools: verdict plus a pre-filled deep link to the full page.

Finance & CryptoPayments & trading

Outdated check745 ms13 / 22
Asia Pulse

Korea & Japan market records for agents. x402 payment inside MCP, Base USDC.

Finance & CryptoPayments & trading

Responded747 ms13 / 22
K-AgentPay: Korea travel & K-pop data

Korea travel & K-pop live data for agents: concerts, Seoul trip packs, crowd, subway, airport.

TravelPayments & trading

Outdated check748 ms13 / 22
Refnusa

Indonesia reference data: holidays, wages, regions, postal codes, tax, food prices, KBLI, BPS stats

Finance & CryptoPayments & trading

Responded749 ms13 / 22
Solana MCP by Vybe

Solana MCP developer toolkit: wallets, trades, markets, PnL, transfers, onchain, swaps & API tools.

Finance & CryptoPayments & trading

Outdated check772 ms13 / 22
x402 Payment Request Parser

x402 payment-request parser with a limited token list. Does not sign, approve or judge payments.

Finance & CryptoPayments & trading

Responded781 ms13 / 22
Bot Bazaar

Pay-per-call x402 audit suites (USDC on Base) and agent marketplace tools. Free sample reports.

Finance & CryptoPayments & trading

Responded786 ms13 / 22
NPI Who

US health care providers by NPI, name or phone, with payments, Medicare, OIG and facility data.

HealthcarePayments & trading

Outdated check797 ms13 / 22
Pandy Tickets

Find events in Guatemala, get checkout links and draft new events. Public, no key.

Finance & CryptoPayments & trading

Responded800 ms13 / 22
Korea Real Estate Data (실거래가·단지·청약)

Korean apartment transactions, complex profiles and housing subscription data by region/complex name

Real Estate & PropertyPayments & trading

Responded801 ms13 / 22
Brix36

Films and music videos. You're the star. No subscription.

MediaPayments & trading

Responded806 ms13 / 22
Xpress Flow Systems

No-sign-up eSIMs for 200+ countries, phone-number eSIMs, domains and proxies. You approve payment.

Finance & CryptoPayments & trading

Responded808 ms13 / 22
PaidHandshake Exchange

Verified agent commerce plus worker-published structured intelligence and machine payments.

Finance & CryptoPayments & trading

Responded827 ms13 / 22
io.github.kodandy/jp-m2m-gateway

Raw Japanese regulatory data for AI agents: pension, gazette, gBizINFO. x402-metered (USDC).

Finance & CryptoPayments & trading

Outdated check828 ms13 / 22
FaxOnline

Prepare and track US PDF faxes with user-approved checkout. No account or subscription.

Finance & CryptoPayments & trading

Responded835 ms13 / 22
Nafafy Storefront

Search the public Nafafy catalog and create firm checkout quotes.

E-commercePayments & trading

Responded851 ms13 / 22
AgentPay x402 Facilitator

Verify signed x402 payments; treasury-scoped settlement is irreversible.

Finance & CryptoPayments & trading

Responded854 ms13 / 22
PeptoClinic store

Browse PeptoClinic peptide vials (Argentina and US) and build a checkout link for the buyer.

Finance & CryptoPayments & trading

Responded855 ms13 / 22
BotSpot: AI Trading, Backtests and Bots

AI agents backtest, paper trade and live trade via your broker. Free to connect; OAuth.

Finance & CryptoPayments & trading

Responded859 ms13 / 22
MyZucoins

Search guides, wallet help, developer docs and news for Zucoin's Splitchain layer 1 network.

Finance & CryptoPayments & trading

Responded862 ms13 / 22
xyz.loadbay/loadbay

Catalog of 370+ open-source AI-agent harnesses. Search, list your own, earn USDC tips via x402.

Finance & CryptoPayments & trading

Outdated check871 ms13 / 22
x402Shield

Public demo: evaluate AI-agent payment authorization and approval policy. No signing, no settlement.

Finance & CryptoPayments & trading

Responded882 ms13 / 22
io.github.realopengroup/mcp-server

Verify crypto wallets and generate proof of funds letters for buying real estate with crypto.

Real Estate & PropertyPayments & trading

Outdated check885 ms13 / 22
io.github.TMCHALK/sftunes

Hand-made human mixtapes with liner notes. Paid tools $0.01 USDC via x402, 80% to the tapemaker.

Finance & CryptoPayments & trading

Responded886 ms13 / 22

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