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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3355 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
L50 UK Property Data

UK property by postcode: prices, rents, yield, flood risk, crime; compare districts. x402.

Real Estate & PropertyCode & DevOps

Responded167 ms12 / 22
Kaio

Find and book local businesses in Italy on Kaio: real free times, booking, online payment link.

Finance & CryptoPayments & trading

Responded179 ms12 / 22
LogicNodes

Verified EVM, Aptos and finance tools for AI agents; gas for 14 chains. Pay per call (x402).

Finance & CryptoPayments & trading

Responded182 ms12 / 22
Inferventis — Financial Data, News & Web MCP

Live financial data MCP: FX, crypto, stocks, news, URL reader. x402 on Base: $0.001/call.

Finance & CryptoCode & DevOps

Responded183 ms12 / 22
47620 Multichain Data API — onchain, crypto, utilities, x402 stats

x402 pay-per-call: onchain data (Solana/Base/Polygon), crypto market, JWT/unit utils, x402 stats.

Finance & CryptoPayments & trading

Responded194 ms12 / 22
Imagemeta

Write SEO metadata (title, alt text, keywords, copyright) into JPEG, PNG, WebP. Paid per call, x402.

Finance & CryptoPayments & trading

Responded196 ms12 / 22
SesApp Access Sheets

Housing access sheets via guest links. REST+MCP+x402 on Base.

Real Estate & PropertyPayments & trading

Responded197 ms12 / 22
Professor Sausages — Trust & Verification

Email, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402.

ProductivityCommunication & messaging

Responded197 ms12 / 22
tech.htsapp/crypto-mcp

Crypto rug/scam-risk scans + wallet snapshots (EVM + Solana), paid per call via x402.

Finance & CryptoPayments & trading

Responded200 ms12 / 22
Canonsheet

Consistent prompts for one human character across image and video models. Paid per call, x402.

MediaPayments & trading

Responded201 ms12 / 22
Krosos

Your accounting ledger as typed tools: net worth, holdings, history, tax estimates, trade logging.

Finance & CryptoPayments & trading

Responded205 ms12 / 22
yieldprobe: DeFi intel for agents

Paid DeFi data for agents via x402 on Base: yields, APY moves, stablecoin pegs, token risk.

Finance & CryptoPayments & trading

Responded216 ms12 / 22
AuctionTrace

Historical ES Book Pressure data, matched evidence, and evaluation guidance for $5 USDC via x402.

Finance & CryptoPayments & trading

Responded220 ms12 / 22
X402 Helper MCP

API discovery and x402 paid execution via MCP. Search by natural-language, call with USDC payment

Finance & CryptoPayments & trading

Responded238 ms12 / 22
com.stevesignals.api/steve-guard

On-chain alpha data for trading agents: smart-money flow, wallet informedness, convergence, VPIN

Finance & CryptoPayments & trading

Responded244 ms12 / 22
Registrai Arc data

Read-only hourly data on stablecoin apps on Arc: payments, volume, indices, verified builders.

Finance & CryptoPayments & trading

Responded245 ms12 / 22
TheProtocol — Sovereign AI Agent Platform

Sovereign AI agent economy: identity, payments, governance, exchanges. 400+ tools, ?mode=gateway.

Finance & CryptoPayments & trading

Responded248 ms12 / 22
ContractLens

EVM token risk checks, x402 payability check for sellers, address classifier and live gas.

Finance & CryptoPayments & trading

Responded251 ms12 / 22
com.texttostl/texttostl

x402-paid tools: text to 3D-printable STL, web search, and search+read. USDC on Base.

Finance & CryptoData access / search

Responded256 ms12 / 22
CoverBureau

Checks certificates of insurance (ACORD 25) against your requirements. Pay per call, x402 USDC.

Finance & CryptoPayments & trading

Responded257 ms12 / 22
IssueFoundry Agent Market

Discover agent services and buy IssueFoundry's fractional-cent x402 reliability utilities.

Developer ToolsCode & DevOps

Responded260 ms12 / 22
Premiss

Create Python strategies and backtest crypto, stocks and ETFs in Claude. Premiss account required.

Finance & CryptoCode & DevOps

Responded262 ms12 / 22
Butterfly Delta Preflight

Signed exact-order pre-submit gate for crypto bots using live Coinbase and Gemini execution data.

Finance & CryptoPayments & trading

Responded264 ms12 / 22
BidGlow

Publish approved free listings and preview optional bids. No payments.

Finance & CryptoPayments & trading

Responded272 ms12 / 22

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