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.

Connect your agent

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
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Outdated check885 ms13 / 22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
Assay: settlement verification

Verify crypto payments really settled and how much arrived. 20 chains. Read only, no API key.

Finance & CryptoPayments & trading

Responded888 ms13 / 22
Exchange.news — Crypto offers, campaigns and news

Read-only crypto signup codes, partner links, sourced campaign dates and the latest crypto news.

Finance & CryptoPayments & trading

Responded893 ms13 / 22
PostalForm

Create mail drafts, upload PDFs, browse forms, track orders, and pay via MPP or x402.

Finance & CryptoPayments & trading

Responded907 ms13 / 22
AgentWorld — Live AI Agent Economy

Live AI agent economy on Base L2: 524 agents, 10 cities, USDC jobs, credit. 164 tools.

Finance & CryptoPayments & trading

Responded914 ms13 / 22
VARRD — Statistically Validated Trading Edges + AI Research Engine

Validated trading edges across futures, equities, crypto. Live signals, full audit trail.

Finance & CryptoPayments & trading

Outdated check916 ms13 / 22
com.maltapropertytax/site

Malta Property Tax: the site's own MCP server — enquiry (enquiry = a human handoff, not a...

Finance & CryptoPayments & trading

Responded926 ms13 / 22
Sell The News

Real-time US stock market news, r/wallstreetbets sentiment, options GEX & max pain, daily recaps

Finance & CryptoPayments & trading

Responded945 ms13 / 22
io.github.webios2026-byte/solradar-mcp

Solana meme-coin trust scores, rug-risk flags, and wallet analytics from SolRadar.

Finance & CryptoPayments & trading

Responded952 ms13 / 22
x402image

x402 image tools (USDC/Base): remove_background/upscale $0.02, resize/optimize $0.005; URL in/out

Finance & CryptoPayments & trading

Responded963 ms13 / 22
VIA - Web/PDF extraction and API comparison

Web/PDF extraction and API comparison. x402 payments or prepaid comparison credit. Free discovery.

Finance & CryptoPayments & trading

Responded968 ms13 / 22
com.expatriationtaxcalculator/site

Expatriation Tax Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human...

Finance & CryptoPayments & trading

Responded979 ms13 / 22
Trainer Connect

Manage students, workouts, appointments and payments through your personal trainer account.

Finance & CryptoPayments & trading

Responded980 ms13 / 22
io.github.brawlaphant/vealth

Vealth work board: find real work, claim free with your wallet, prove it. Free onchain anchoring.

Finance & CryptoPayments & trading

Responded984 ms13 / 22
Prax Data Services

Screen wallets, transfers and sanctions for any agent that moves money. Read-only, free tier.

Finance & CryptoPayments & trading

Outdated check984 ms13 / 22
OT Intel API

OT/ICS threat intel for AI agents: 40 tools, pay per call in USDC on Base via x402.

Finance & CryptoPayments & trading

Responded985 ms13 / 22
com.maltacryptolicence/site

Malta Crypto Licence: the site's own MCP server — enquiry (enquiry = a human handoff, not a...

Finance & CryptoPayments & trading

Responded993 ms13 / 22
com.potomacledger/trades

Stock trades of U.S. Congress & executive-branch officials, with conflict flags. Read-only.

Finance & CryptoPayments & trading

Responded1006 ms13 / 22
com.maltataxrefundcalculator/site

Malta Tax Refund Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human...

Finance & CryptoPayments & trading

Responded1007 ms13 / 22
com.canadapayrollcalculator/site

Canada Payroll Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human...

Finance & CryptoPayments & trading

Responded1037 ms13 / 22
FinzData

Point-in-time stocks, ETFs, futures, GEX, crypto, FX, macro, COT, 13F, ships, ports, flights, power.

Finance & CryptoPayments & trading

Responded1042 ms13 / 22
com.maltapayrollcalculator/site

Malta Payroll Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human...

Finance & CryptoPayments & trading

Responded1050 ms13 / 22
com.cryptoamlpolicy/site

Crypto AML Policy: the site's own MCP server — enquiry (enquiry = a human handoff, not a...

Finance & CryptoPayments & trading

Responded1051 ms13 / 22

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