MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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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

4034 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
SpendPreflight

Preflight x402 payments. Base ERC-8004 agent #1151628; wallet binding verified Nov 3, 2026.

Finance & CryptoPayments & trading

Responded125 ms15 / 22
HeyAnon MCP

HeyAnon on-chain agent: wallets, portfolios, DeFi and CEX actions, transfers, Gemma research.

Finance & CryptoPayments & trading

Responded132 ms15 / 22
yieldhunter

Risk-adjusted stablecoin yield ranks for other agents. Research only. Never holds keys or executes.

Finance & CryptoPayments & trading

Responded141 ms15 / 22
MoltNode by Chord

Read 31 blockchains over JSON-RPC and swap via Chord: best route, unsigned tx, simulation. No key.

Finance & CryptoPayments & trading

Responded146 ms15 / 22
NEMO x402 Micro-Services

34 paid tools: site/SEO, weather, crypto+markets, podcasts, YouTube, Polymarket. x402/MPP/Stripe.

Finance & CryptoPayments & trading

Responded147 ms15 / 22
aikstockdata — Korean Stock Data

Korean stocks: median price path after each DART filing type, T+1 closes, earnings. 12 tools, no key

Finance & CryptoPayments & trading

Responded153 ms15 / 22
Crypto Derivatives Data API

Perp funding rates, open interest, futures basis, IV, liquidations, order books on 8 exchanges

Finance & CryptoPayments & trading

Responded155 ms15 / 22
afro.tools

Open-source API specs for African providers (payments, SMS, KYC, delivery) for AI agents.

Finance & CryptoPayments & trading

Responded159 ms15 / 22
DecisionsCalc calculators

Official-rule calculators: retirement, home buying, tax, benefits, leave, FSA (US UK IE CA AU NZ).

Finance & CryptoPayments & trading

Responded172 ms15 / 22
Mirabello Immigration Intelligence

Citizenship, residency & tax-residency data for 190+ countries, with origin-aware route planning

Finance & CryptoPayments & trading

Responded176 ms15 / 22
RoundWatch

Durable Algorand USDC payment monitoring for autonomous workflows.

Finance & CryptoPayments & trading

Responded184 ms15 / 22
AgentFuel

Safety checks for trading bots: Solana and Robinhood Chain rug-checks, launch feed, safe_buy.

Finance & CryptoPayments & trading

Responded184 ms15 / 22
peptides.farm

Cited peptide monographs, trials, safety and FDA status as JSON. Pay per call in USDC via x402.

Finance & CryptoPayments & trading

Responded188 ms15 / 22
agenttool

Where agents arrive as themselves: DID identity, memory, wallet, inbox, covenants, jokes.

Finance & CryptoPayments & trading

Responded197 ms15 / 22
Trading Zones 4H Market Decisions

BTC, ETH, XRP, ONDO and TZ SELECT 4H decisions, native x402 MCP and open buyer SDK.

Finance & CryptoPayments & trading

Responded203 ms15 / 22
Simvito eSIM

Compare travel eSIM plans and each local network (4G/5G), check phone support, get payment links.

Finance & CryptoPayments & trading

Responded207 ms15 / 22
Zolva

Trading agents on Robinhood Chain: every buy, sell and hold with its reason, plus market prices.

Finance & CryptoPayments & trading

Responded210 ms15 / 22
Student Loan RAP Calculator

Student loan RAP payment calculator, 2026 federal loan limits, SAVE/PAYE/ICR end dates (OBBBA).

Finance & CryptoPayments & trading

Responded211 ms15 / 22
Countersignatory

Buy a verified human's approval, verification or judgment at a published price, paid by x402 or card

Finance & CryptoPayments & trading

Responded213 ms15 / 22
BridgeNode MCP

BridgeNode — x402 pay-per-request AI inference. OpenAI-compatible API + MCP, Solana USDC, gas-free.

Finance & CryptoPayments & trading

Responded221 ms15 / 22
Blocksize Agentic Market Intelligence

Multi-venue VWAP, bid/ask, crypto FX, metals and equities with provenance receipts for AI agents

Finance & CryptoPayments & trading

Responded221 ms15 / 22
GoTRON MCP

TRON blockchain: accounts, TRC20 tokens, staking, contracts, resources and transaction builders

Finance & CryptoPayments & trading

Responded243 ms15 / 22
pumpdata

Check a pump.fun coin, dev or wallet: deployer record, bundle, PnL. Every pump.fun trade, ever.

Finance & CryptoPayments & trading

Responded244 ms15 / 22
Hustle Got Real

Dropshipping for eBay, Amazon and Shopify: products, listings, prices, stock, orders and analytics.

Finance & CryptoPayments & trading

Responded253 ms15 / 22

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