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

3367 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
AgentReader

AgentReader (agentreader.xyz): web pages, PDFs, JSON, CSV and text as Markdown. Card packs or x402.

Finance & CryptoFile & docs

Requires authNot measured4 / 22Not checked yet
AgnicPay

X402 payment MCP for AI agents. Auto-pay 300+ APIs with USDC on Base and Solana.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
Agorean

The review layer for x402: check a seller's reviews before you pay. Also a marketplace for agents.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22Not checked yet
AI Backtester

Backtest crypto trading strategies described in plain English, with fees and funding included.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22
Alegra MCP Server and API by Cotlet

Alegra small business accounting MCP server: create invoice, email invoice, record payment.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
Alerta Chart

Read and draw on your Alerta Chart charts, scan stocks, forex and crypto, and set alerts.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22
AltcoinChasersHQ: Acai crypto research

Crypto research: launch, surge, daily picks, forensics, research jobs, monitors, rug checks.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22Not checked yet
Aperiodic Market Data

Crypto & RWA microstructure, liquidity, flow and raw data via Parquet; live metrics via WebSocket.

Finance & CryptoData access / search

Requires authNot measured4 / 22Not checked yet
Aperture Wallet Knowledge

Verified Aperture Wallet product, security, network, release, and Journal knowledge.

Finance & CryptoPayments & trading

Not measuredNot measured4 / 22
ApexTick Market Data & Options MCP

Global equities, ETFs, FX & crypto quotes, OHLCV history, fundamentals, technicals & options Greeks

Finance & CryptoData access / search

Requires authNot measured4 / 22Not checked yet
API Ninjas

140+ data APIs for agents: finance, banking validation, geo, weather, text. One API key.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22Not checked yet
AsOf

Historical crypto wallet holdings, valuations and CSV exports. OAuth; paid own-wallet scans.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
Aurato

Read-only global payment reference data, metrics, relationships, sources, news and events.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22
Aus Tax Tracker

Track Australian work-related tax deductions: expenses, assets, car trips and work-from-home days.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22
Auto.dev

Automotive data for AI agents: VIN decode, listings, specs, build data, recalls, payments, taxes.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
Avalara AvaTax

Access Avalara AvaTax API for tax calculation, transactions, nexus management, and compliance

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
Avalara Returns

Provides access to Avalara Global Returns API for tax returns, filing calendars, and compliance data

ProductivityFile & docs

Requires authOutdated checkNot measured4 / 22
Avalara Tax Content

Provides access to Avalara Tax Content: TTE configs, jobs, communications, lodging, autorental

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
Avalara Tax Registrations and Business Licenses

Provides access to Avalara Tax Registration and Business Licenses APIs for filings and registrations

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
BananaCrystal: FX rates, swaps and payments in 140+ currencies

Give your AI agent a wallet: live FX rates, swaps and payments in 140+ local currencies.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22Not checked yet
BananaSplit

Track shared expenses, payments and balances across BananaSplit groups and friends.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
BankOpenAPI

Accept bank transfers in Vietnam: VietQR payment requests, payment status, incoming transactions.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22Not checked yet
BARK Regulatory Research

EU banking regulation research, cited to the article, from a versioned knowledge graph.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Bernuvia

Marketplace of code templates: find, buy by card with Stripe, sell and manage your sales and cases

Finance & CryptoPayments & trading

Requires authNot measured4 / 22Not checked yet

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