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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4677 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.f-tiger/agiscorecard-web3-calls

Decode supported token calls and flag recipient or amount mismatches; no wallet or safety verdict.

Finance & CryptoPayments & trading

Responded96 ms14 / 22
FabTally Chain

On-chain monitoring reads: ENS/Basename expiry, gas, token unlocks & Chainlink oracle health.

Finance & CryptoMonitoring & observability

Responded96 ms14 / 22
kari catalog

kari shoe and accessory stores in Russia, Kazakhstan, Belarus: search, prices, stores, size stock

Finance & CryptoData access / search

Outdated check96 ms14 / 22
The Flowers Directory

Send flowers in the US: search arrangements, same-day florist delivery by ZIP, checkout links

Finance & CryptoPayments & trading

Responded97 ms14 / 22
SmartRetry Payment Tools

Free BIN, issuer, MCC and decline code lookups for card payments (Visa, Mastercard, Stripe, Adyen).

Finance & CryptoPayments & trading

Responded97 ms14 / 22
AuraCalcs

Read-only 2026 paycheck estimates for CA, NY, IL, TX, FL, plus hourly-to-salary. Not tax advice.

Finance & CryptoPayments & trading

Responded97 ms14 / 22
402registry

Does an AI crawler see your site? Free registry lookup, x402 pricing; checks paid in USDC on Base.

Finance & CryptoPayments & trading

Responded97 ms14 / 22
Receipt Extraction

AU GST/ABN receipt extraction — assigns entertainment/ITC tax codes per line, not just OCR.

Finance & CryptoPayments & trading

Outdated check97 ms14 / 22
Dragons Eye Ransomware Claims

Ransomware claim lookups, IOC and CVE intel, group intel, bulk checks and watch alerts (x402 USDC).

Finance & CryptoPayments & trading

Responded99 ms14 / 22
Agent Revenue Network

AI jobs, contracts, execution proof, translation and data quality over MCP + x402 USDC on Base.

Finance & CryptoPayments & trading

Responded99 ms14 / 22
Unified Jobs MCP Server

Dedup jobs feed across ATS, LinkedIn & HN, free. Metered comp & hiring-signal depth via x402/USDC.

Finance & CryptoPayments & trading

Responded103 ms14 / 22
Is It Down API (60SecMonitor)

Is this vendor down? Pay-per-call status for 1,400+ SaaS/cloud vendors, up to 25 per call (x402).

Finance & CryptoPayments & trading

Responded104 ms14 / 22
SHVL

Review overdue invoices, synced Xero invoices and contacts, and live Xero reports. Read-only.

Finance & CryptoPayments & trading

Responded104 ms14 / 22
402MCP.org — HTTP 402 & Agent Payment Registry

Decode HTTP 402 challenges (L402, x402, MPP) and choose agent payment rails from an open registry.

Finance & CryptoPayments & trading

Responded104 ms14 / 22
RugShield — Solana Token Safety Scanner

Solana token rug-pull detection for AI trading agents. Score, authorities, liquidity.

Finance & CryptoPayments & trading

Responded104 ms14 / 22
Moonlauncher

Prepare pump.fun token launches from your AI agent. You review and sign each one in your own wallet.

Finance & CryptoPayments & trading

Responded106 ms14 / 22
ai.greyridgesignals/tech-risk

MCP security scanner: tool-poisoning & prompt-injection audit (OWASP LLM01/LLM08), x402-payable

Finance & CryptoPayments & trading

Responded107 ms14 / 22
stampthisfile

Timestamp files in Bitcoin (OpenTimestamps): send a hash, pay per hash with x402, get a proof.

Finance & CryptoPayments & trading

Responded107 ms14 / 22
MCPFax Bazaar Intelligence

Seller ranks, trends and demand in the x402 economy. USDC read off Base, not self-reported.

Finance & CryptoPayments & trading

Responded108 ms14 / 22
Vintage Postcard

Affiches vintage : catalogue, devis livraison comprise et paiement Stripe.

Finance & CryptoPayments & trading

Outdated check108 ms14 / 22
Counterfoil

Read stored EU e-invoice rule notes and the invoice field map. Not a validator.

Finance & CryptoPayments & trading

Responded109 ms14 / 22
Poplin

Estimate payments abroad: fees, exchange rates, receiving accounts and payout coverage

Finance & CryptoPayments & trading

Outdated check110 ms14 / 22
Mail Security Tools

DMARC/SPF/DKIM/MX checks, email score, 100-domain bulk score, webhook watch alerts (x402 USDC).

Finance & CryptoPayments & trading

Responded111 ms14 / 22
Teamleader Focus MCP by usefulapi

Read Teamleader Focus contacts, companies, deals, invoices, projects; create deals, tasks.

Finance & CryptoPayments & trading

Responded113 ms14 / 22

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