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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4113 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
dev.workers.sebastiaan-ba3.signals/tools

Lighter funding/volume snapshot and multi-chain wallet balance checks for AI agents.

Finance & CryptoPayments & trading

Responded125 ms12 / 22
Compliance Tools

Pay-per-call compliance lead scanners with free MCP discovery and x402 payments.

Finance & CryptoPayments & trading

Outdated check125 ms12 / 22
Vellium & Co Testing Lab

Independent checks of paid x402 data sellers and of AI-agent access to shopping and travel sites

TravelPayments & trading

Responded126 ms12 / 22
Invoice Duplicate Recovery

Computes exact overpayments across caller-supplied approved invoices, payments, and recorded cred...

Finance & CryptoPayments & trading

Responded127 ms12 / 22
falcon.sol agents

Solana agent tools, x402 USDC pay-per-call (Cloudflare host).

Finance & CryptoPayments & trading

Responded130 ms12 / 22
Kobiyi MCP by usefulapi

Read receivables, payables and bank transactions; record collections and payments in Kobiyi.

Finance & CryptoPayments & trading

Responded131 ms12 / 22
HotShot Gear

Curated UK darts-gear catalogue ranked by fit, not payment: find, explain and compare darts kit.

Finance & CryptoPayments & trading

Responded134 ms12 / 22
Legacy

Give to UK registered charities: check charity numbers, price a gift and get a checkout link.

Finance & CryptoPayments & trading

Responded140 ms12 / 22
com.kenoodl/verify

Runs your code against a contract; HELD or BROKE at the exact input. Deterministic. 0.10 USDC/call.

LegalPayments & trading

Outdated check143 ms12 / 22
Living Stack Agent Commerce

Remote MCP for Living Stack offer discovery and buyer-authorized checkout preparation.

Finance & CryptoPayments & trading

Responded144 ms12 / 22
Fakturai — German E-Invoice (ZUGFeRD / Factur-X / E-Rechnung)

KoSIT-verified German e-invoices: generate & validate ZUGFeRD, Factur-X, XRechnung, EN 16931.

Finance & CryptoPayments & trading

Responded148 ms12 / 22
QSIG Intelligence

Geopolitical risk, theme board and point-in-time gold macro context for agents, paid via x402

Finance & CryptoPayments & trading

Responded149 ms12 / 22
Company Intel

9 pay-per-call company intel tools over MCP. Free discovery, calls settle in USDC on Base (x402).

Finance & CryptoPayments & trading

Outdated check151 ms12 / 22
polls.karbach.digital

Election data for agents: Germany, Spain, France, EU. Polls, forecasts, MPs, energy. Paid via x402.

Finance & CryptoPayments & trading

Responded152 ms12 / 22
FeedOracle Stablecoin Risk

7-signal stablecoin risk scoring. 13 tools, 28+ tokens, SAFE/CAUTION/AVOID verdicts.

Finance & CryptoPayments & trading

Outdated check152 ms12 / 22
GDPR PII Shield & EU AI Act Anonymization Gate

Zero-retention GDPR PII redaction gate (IBAN, Tax-ID, HRB, Names) with signed Ed25519 VC.

Finance & CryptoPayments & trading

Responded154 ms12 / 22
Money Reactor

Crypto/stock prices, QR, DNS, RSS, URL reader, AI chat, weather, ENS, hashes. USDC Base $0.001+

Finance & CryptoPayments & trading

Responded154 ms12 / 22
Aval

Payment-backed trust scores for AI agents on Base (ERC-8004). $0.01 per check via x402.

Finance & CryptoPayments & trading

Responded155 ms12 / 22
net.postandshare/solana-token-launch

Create, launch and rug-check Solana SPL tokens over x402. Non-custodial, no keys handed over.

Finance & CryptoPayments & trading

Responded157 ms12 / 22
Lead Intelligence

Pay-per-call lead intelligence tools with free MCP discovery and x402 payments.

Finance & CryptoPayments & trading

Outdated check159 ms12 / 22
com.retirecrunch/calculators

FIRE & retirement calculators + a multi-currency portfolio rebalancer (exact buy/sell trades).

Finance & CryptoPayments & trading

Responded162 ms12 / 22
VignetteGO Road Trip Tolls

Read-only vignette and toll planning for nine countries; eight live checkout catalogues.

Finance & CryptoPayments & trading

Responded172 ms12 / 22
FAHCE Integrity Repair

Free FAHCE contract discovery. Paid evidence determinations use wallet-only x402 REST endpoints.

Finance & CryptoPayments & trading

Outdated check177 ms12 / 22
Stocklake — AI Stock Intelligence

AI stock intelligence: prices, fundamentals, technicals, news, macro regime, and sector signals.

Finance & CryptoPayments & trading

Outdated check178 ms12 / 22

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