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

4698 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
Avasis Agent Platform

Free MCP tools to quote and sample x402 APIs: Solana rug checks, Base token-watch, $49 starter kit

Finance & CryptoPayments & trading

Responded348 ms14 / 22
Gas Fee Predictor

Live Ethereum and L2 gas fees: current gas, cheapest L2, forecast, ETH price, cost estimates.

Finance & CryptoPayments & trading

Outdated check348 ms14 / 22
AgentBIT

x402 router-proxy + 79 keyless pay-per-call tools on Base. Pay once, we run the best tool.

Finance & CryptoPayments & trading

Outdated check348 ms14 / 22
Permit Scouter

Daily Tampa Bay, Southwest and Central Florida permits with job value and contractor. Pay via x402.

Finance & CryptoPayments & trading

Responded350 ms14 / 22
MyNomadWorld: where should I live?

Ranks 197 countries for remote workers: tax, cost of living, climate, safety, visas, internet

Finance & CryptoPayments & trading

Responded350 ms14 / 22
CryptoExchange.Discount Referral Codes

Verified referral and discount codes for crypto exchanges, wallets and trading tools. Read-only.

Finance & CryptoPayments & trading

Responded356 ms14 / 22
DoubleTaxation

Tax residence, treaty tie-breaker, next steps, exit tax, special tax regimes, business forms.

Finance & CryptoPayments & trading

Responded356 ms14 / 22
Stienhardt

Stienhardt (NYC): shop live Lab Grown Diamonds, engagement rings, jewelry. Search, cart, checkout.

Finance & CryptoPayments & trading

Outdated check356 ms14 / 22
BTC DCA Engine

Historical dollar-cost-averaging simulator for Bitcoin and other assets.

Finance & CryptoPayments & trading

Responded366 ms14 / 22
OpenBoss

Public internet HP bar. Agents smack it over MCP. They cannot complete payment.

Finance & CryptoPayments & trading

Outdated check370 ms14 / 22
Dogechain

Dogecoin blockchain lookups: transactions explained, addresses, blocks, fees, supply and charts.

Finance & CryptoPayments & trading

Responded371 ms14 / 22
Africa Take-Home Pay

Take-home pay, PAYE and payroll contributions in Ghana, Kenya, Nigeria and South Africa.

Finance & CryptoPayments & trading

Responded372 ms14 / 22
TradeAlmanac

TradeAlmanac market data: dividends, screener, sentiment indicators, calendar effects, stock lists.

Finance & CryptoData access / search

Responded374 ms14 / 22
Launchelion

Daily leaderboard of newly-launched AI tools with real launch dates and Stripe-verified revenue.

Finance & CryptoPayments & trading

Responded374 ms14 / 22
firma.de Rechner für Gründer

German tools for founders: formation costs, notary and tax adviser fees, taxes, holdings, e-invoices

Finance & CryptoPayments & trading

Responded386 ms14 / 22
PrepLayer.ai

Deterministic text prep for agents. Pay per call via x402 USDC.

Finance & CryptoPayments & trading

Outdated check387 ms14 / 22
Autrady

Is a trading strategy's track record luck? Free luck check, plus what a full strategy audit checks.

Finance & CryptoPayments & trading

Responded391 ms14 / 22
Midpoint Card Prices

Trading card prices and grading ROI for 1.5M+ Pokémon, Magic, Yu-Gi-Oh! and sports cards. Read-only.

Finance & CryptoPayments & trading

Outdated check398 ms14 / 22
botx402

Inventory reorder plans from SKU sales, stock and lead times. $19 a run, paid by card.

Finance & CryptoPayments & trading

Responded400 ms14 / 22
AlphaGrowth

Free crypto data for AI agents: TVL, fees, funding, investors, yields, token unlocks, DAO treasuries

Finance & CryptoPayments & trading

Responded402 ms14 / 22
flatin.es — new builds and local data in Spain

New-build homes on sale in Spain, buying costs, non-resident tax and local open data.

Finance & CryptoPayments & trading

Responded402 ms14 / 22
Vibe Springs

Pay-per-use weather, environment, finance, and on-chain intelligence tools for AI agents via x402.

Finance & CryptoPayments & trading

Responded411 ms14 / 22
Jock Taxes for Claude

Pro athlete after-tax salary calculators for MLB, NBA, NFL and NHL, built for Claude.

Finance & CryptoPayments & trading

Responded412 ms14 / 22
ChangeNOW

Quote, create and track cross-chain crypto swaps. Non-custodial exchange, no account, no KYC.

Finance & CryptoPayments & trading

Responded413 ms14 / 22

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