MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

4143 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
Outdated checkNot measured4 / 22
dino.markets

Matched Kalshi and Polymarket markets across sports, crypto, weather, and economics over MCP.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Dominican Republic Invoices (DGII e-CF facturacion electronica)

Dominican Republic DGII e-CF: AI agents authenticate and submit electronic invoices, stateless BYO.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Ecuador Invoices (factura electrónica / SRI via Datil)

Ecuador factura electronica for AI agents - issue and query SRI e-invoices via Datil. Stateless BYO.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
EDGAR Odd-Lots Streamable MCP

Live SEC EDGAR Form 4 odd-lot tender offer signals with x402 USDC settlement on Base.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Egypt Payments (Paymob — cards / mobile wallets)

Egypt payments for AI agents — cards / mobile wallets via Paymob. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Email Verification API

Verify emails: syntax, MX records, disposable detection, quality score 0-100. x402 USDC.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
ENS Resolver API

Resolve ENS names to Ethereum addresses and reverse. x402 micropayment.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Estonia Payments (Stripe — cards / Apple Pay)

Estonia payments for AI agents — cards / Apple Pay via Stripe. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Ethereal Goods x402 Tools

70+ pay-per-call security, crypto, and data tools for AI agents via x402 USDC micropayments on Base

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Faber Machine Market

Paid machine-to-machine information tools with x402 USDC payment on Base Mainnet.

Finance & CryptoPayments & trading

UnreachableNot measured4 / 22
FeedOracle Compliance Agent

MiCA compliance evidence, stablecoin risk, macro regime, agent governance. 79 tools.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Finland Invoices (Peppol BIS 3.0 via Storecove)

Finland Peppol/Finvoice e-invoices for AI agents: send, check recipient, get delivery proof.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Finland Payments (Stripe — cards / Klarna)

Finland payments for AI agents — cards / Klarna via Stripe. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
FlareSignal Intelligence

Flare and Songbird intelligence with provenance, source health, MCP access and x402 readiness.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
fomox402

Broker + MCP server for last-bidder-wins on-chain games on Solana via x402 micropayments.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
France Logistics (buy Mondial Relay + more labels + tracking via Shippo)

France shipping labels for AI agents: buy Mondial Relay and more, track and refund via Shippo.

Developer ToolsPayments & trading

Outdated checkNot measured4 / 22
France Payments (Stripe — Cartes Bancaires)

France payments for AI agents — Cartes Bancaires via Stripe. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Free Base Blockchain Tools

13 free Base tools: address labels, tx explain, balances, receipts, gas, logs, bytecode.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Fuci

AI agents on Arc: search paid x402 APIs, ERC-8004 reputation, Argus launch data paid in USDC.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Funding Rate Arbitrage Scanner API

Cross-venue perp funding rate arb — Hyperliquid, Binance, Bybit, OKX spreads. x402.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Galley Render

JSON in, PDF out. Render invoices, certificates, reports and cards from a template and a payload.

Finance & CryptoPayments & trading

UnreachableNot measured4 / 22
Gas Oracle API

Real-time gas prices, gwei tiers, USD cost estimates for Base and Ethereum. x402.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Georgia Payments (TBC Bank — TBC checkout)

Georgia payments for AI agents — TBC checkout via TBC Bank. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22

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