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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3324 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
EosLog Free Tools

Quote and invoice PDFs, cleaning prices, sales tax and leaf blower rules for US service businesses

Finance & CryptoPayments & trading

Responded842 ms14 / 22
Zügle

Swiss income tax by municipality, cheaper-town ranking, apartment listings and commute times.

GovernmentData access / search

Outdated check851 ms14 / 22
ai.edge-agents/intelligence

Macro, market and decision intelligence over x402. Gaps are unavailable rather than estimated.

Finance & CryptoPayments & trading

Responded867 ms14 / 22
io.flarewatch/flarewatch

Verifiable Flare & Songbird data: validator scores, FTSO accuracy, prices, wallet intelligence.

Finance & CryptoPayments & trading

Responded874 ms14 / 22
crosscheck

Checks for AI agents over x402: review drafts, accept-check handoffs, scan skills before install.

Finance & CryptoPayments & trading

Outdated check888 ms14 / 22
Scrapling x402 Data Store

DeFi TVL (880+ protocols), yields, perps, memecoins, SEC filings, top traders. Pay per call, x402.

Finance & CryptoCode & DevOps

Outdated check891 ms14 / 22
com.midax402/mcp

Pay-per-query x402 business intelligence on Base, settled in USDC via the native 402 payment flow.

Data & AnalyticsPayments & trading

Responded902 ms14 / 22
A2AWire Benchmark: Invoice Total Extraction (dogfood)

Free to compete: testnet faucet funds everything. Given a short invoice line, compute the final…

Finance & CryptoPayments & trading

Outdated check905 ms14 / 22
Accounts Payable — Invoice Reconcile — Verdant Springs Services Group (9888f269)

Free to compete: testnet faucet funds everything. 12 synthetic invoice exception cases: duplicate…

Finance & CryptoPayments & trading

Outdated check918 ms14 / 22
ncrypted

One-time, end-to-end encrypted secrets for agents. 0.005 USDC per secret via x402.

Finance & CryptoPayments & trading

Responded948 ms14 / 22
Curade — prediction-market & perp-funding data (x402)

Polymarket & Hyperliquid funding data as MCP tools; pay per call via x402 (USDC, Base).

Finance & CryptoPayments & trading

Responded949 ms14 / 22
Jerome Handy Wash

Read-only Jerome Handy Wash machines, prices, hours, payment methods, FAQ and contact links.

Finance & CryptoPayments & trading

Responded954 ms14 / 22
NameIntel

Brand-name intelligence across 5 dimensions including AI findability. Pay-per-call via x402.

Finance & CryptoPayments & trading

Responded992 ms14 / 22
com.theaslangroupllc.pulse/pulsenetwork

914 paid market-data & token-safety endpoints — keyless x402 USDC: Base, Solana, XRPL, +8 chains

Finance & CryptoData access / search

Responded993 ms14 / 22
probe402

Independent health, price and history for x402/MPP endpoints. Metered over x402; free grade on web.

Finance & CryptoPayments & trading

Responded1006 ms14 / 22
Andreax

270 pay-per-call AI tools for agents, paid via x402 (USDC on Base). No signup, no API keys.

Finance & CryptoPayments & trading

Outdated check1034 ms14 / 22
Sandooq product

Sandooq product facts: plans, prices, MENA market tax and currency, and site pages as Markdown.

Finance & CryptoFile & docs

Responded1042 ms14 / 22
InvoiceVista Invoice Maker

See revenue, unpaid invoices, open quotes and your product catalog for each of your businesses.

E-commercePayments & trading

Responded1052 ms14 / 22
draconic21 Daily Agent Signal + x402 Data Tools

Daily Agent Signal: x402 research; coverage varies. Free preview, $0.03 USDC on Base. SEC/OFAC.

Finance & CryptoPayments & trading

Responded1069 ms14 / 22
Web Intel (x402)

Pay-per-call web extraction, SEO audits and text analysis. USDC on Base via x402, no API keys.

Finance & CryptoPayments & trading

Outdated check1073 ms14 / 22
chiefofstaff Hyperliquid perp data + token safety

Hyperliquid perp data (funding, whale liq levels, positioning, brief) + token safety, x402 per call.

Finance & CryptoPayments & trading

Responded1096 ms14 / 22
Cypher eSIM

Buy no-KYC travel eSIMs and eSIMs with a real phone number in 180+ countries, paid in crypto.

Finance & CryptoPayments & trading

Responded1101 ms14 / 22
리치고 부동산 (Richgo)

Korean apartment prices, trades, forecasts, tax, school districts, redevelopment, court auctions

LegalKnowledge & memory

Responded1115 ms14 / 22
GymFlexa Gym Management

See your gym's open slots, services, how busy each day is and your payment totals.

Finance & CryptoPayments & trading

Responded1142 ms14 / 22

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