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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4131 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
LogicNodes

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

Finance & CryptoPayments & trading

Responded182 ms12 / 22
台股題材與高股息

台股題材與高股息:AI 題材股與高股息 ETF 資料。台灣繁體中文 MCP 工具。

Finance & CryptoPayments & trading

Responded183 ms12 / 22
Backtester

Test a plain-words trading rule on historical prices and compare the trades with SPY. Not advice.

Finance & CryptoPayments & trading

Responded189 ms12 / 22
Pocketly: UK switching offers

UK current-account switching offers from each bank's own terms, and a planner for which fit.

Finance & CryptoPayments & trading

Responded193 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
TxWhy

Failed Solana transaction in, working transaction out. Exact cause, rebuilt tx, verifiable repair.

Finance & CryptoPayments & trading

Responded195 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
net.postandshare/nigerian-reference-data

Nigerian phone, bank-account and identity-number validation for AI agents. Pay-per-call in USDC.

Finance & CryptoPayments & trading

Responded199 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
Werop

Search independent fashion from European brands on Werop and build a checkout link.

Finance & CryptoPayments & trading

Responded210 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
The River

Trade and invest in tokenized stocks: prices, holdings, P&L, unsigned market/limit/recurring trades.

Finance & CryptoPayments & trading

Responded218 ms12 / 22
AuctionTrace

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

Finance & CryptoPayments & trading

Responded220 ms12 / 22
Fexr trading

Let your AI trade inside limits you set: proven strategies, hard limits, every move on record.

Finance & CryptoPayments & trading

Responded224 ms12 / 22
toolvend - utility APIs for agents

Calendar, DNS, RDAP, LEI, URLs, scraping, text, VAT and QR utilities. Pay-per-call USDC.

ProductivityPayments & trading

Responded236 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
CoverBureau

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

Finance & CryptoPayments & trading

Responded257 ms12 / 22

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