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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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
GPU Cloud Prices (AWS, Azure, OCI)

Paid x402 API, $0.005 USDC on Base: cached GPU $/hr, AWS/Azure/OCI (H100/H200/A100/L4/L40S)

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
GPU Cloud Prices (AWS, Azure, OCI)

H100/H200/A100 on-demand AWS/Azure/OCI + Azure Spot; L4 AWS, L40S AWS/OCI. Cached $/hr, x402 $0.005

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22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

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

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Guatemala Payments (Recurrente — cards (Recurrente))

Guatemala payments for AI agents — cards (Recurrente) via Recurrente. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
hardoz x402 tools

Pay-per-call AI and media tools over x402. USDC on Base, no signup, no API key.

Finance & CryptoPayments & trading

UnreachableNot measured4 / 22
Hash Generator API

Cryptographic hashing — MD5, SHA1, SHA256, SHA512, bcrypt. x402 micropayment.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Hive A/B Test

A/B experiment runner for the A2A network with x402 micropayments on Base USDC.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Hive MPP

Dual-rail 402 (x402 + MPP Tempo) MCP server

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Hive Openclaw Bridge

Reference integration with @kinthaiofficial OpenClaw 3-layer payment governance

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Hive Tax Observer

Read-only tax event observation for agent-to-agent transaction streams

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Outdated checkNot measured4 / 22
HL Portfolio API

Hyperliquid account analysis: positions, PnL, fills, orders, funding. x402 pay-per-call.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Hong Kong Payments (Stripe — Alipay / WeChat Pay)

Hong Kong payments for AI agents — Alipay / WeChat Pay via Stripe. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
HTML to Markdown API

Convert HTML to clean markdown. Strips scripts and styles. x402 micropayment.

Developer ToolsFile & docs

Outdated checkNot measured4 / 22
HTTP Headers Analyzer API

HTTP header analysis — security headers, cache, server detection. x402 micropayment.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Hungary Invoices (NAV Online Szamla 3.0 reporting API)

Hungary NAV Online Szamla 3.0 invoice reporting for AI agents: report invoice data, query status.

Finance & CryptoPayments & trading

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

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

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Hyperliquid Funding Rates API

HL perp funding rates for 229 markets. Sort, history, arb opportunities. x402.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Hyperliquid Perp Market Data API

Hyperliquid perp order book, prices, funding, OI, candles. x402 paid.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Hyperliquid Spot API

Hyperliquid spot tokens, prices, volume, wallet balances. 454 tokens. x402 micropayment.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Hyperliquid Vaults API

Hyperliquid vault summaries — APR, TVL, PnL, followers, sorted by performance. x402.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Hyperliquid Whale Position Tracker API

Top Hyperliquid trader positions — long/short, size, PnL, leverage, sentiment. x402.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Image Generator API

AI image generation from text prompts via Gemini. x402 micropayment.

MediaCode & DevOps

Outdated checkNot measured4 / 22
Image Resize API

Resize images from URL — PNG, JPEG, WebP output. x402 micropayment.

MediaCode & DevOps

Outdated checkNot measured4 / 22

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