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

3366 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
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Outdated checkNot measured4 / 22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Outdated checkNot measured4 / 22
EP AgentIAM

AI agent execution safety via x402 micropayments: risk scoring, integrity, memory checks

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Erudite Intelligence x402 Services

80 paid MCP tools via x402 USDC micropayments. Crypto data, web scraping, auditing, and more.

Finance & CryptoBrowser & web scraping

Outdated checkNot measured4 / 22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Outdated checkNot measured4 / 22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Outdated checkNot measured4 / 22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
Fact Checker API

Verify claims with web evidence. Returns sources and verdict. x402 micropayment.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
FET112

Security intelligence for AI agents monitoring Ethereum before actions.

Finance & CryptoMonitoring & observability

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Outdated checkNot measured4 / 22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

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

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
Gas Estimator API

Multi-chain gas estimation — ETH, Base, Polygon, Arbitrum, BSC. x402 micropayment.

Developer ToolsCode & DevOps

Outdated checkNot 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
GDPR Scanner API

Scan website GDPR compliance: consent, privacy policy, trackers. Score 0-100. x402.

Developer ToolsCode & DevOps

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
Germany Payments (Mollie — Klarna / SEPA)

Germany payments for AI agents — Klarna / SEPA via Mollie. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Ghana Payments (Paystack — MTN MoMo)

Ghana payments for AI agents — MTN MoMo via Paystack. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Giskard Oasis

Contextual guidance for AI agents in fog states. Claude-backed, Ed25519, Lightning payment.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Giskard Search

Pay-per-use web search for AI agents. Lightning invoice, Ed25519 signature, karma discounts.

Finance & CryptoData access / search

Outdated checkNot measured4 / 22
Glitchwire News

Search and read Glitchwire's independent tech news: AI, crypto, science, gadgets, policy.

Finance & CryptoData access / search

UnreachableNot measured4 / 22

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