MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

3364 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
RevScope

Query web traffic and revenue attribution analytics with Google and Stripe integrations

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured5 / 22
SafePay Check

Judges a payment (PayPal, PYUSD or USDC) before an AI agent makes it. Signed proof. Moves no money.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
Saifuban

Hard daily caps on AI agents' API spend, plus phone approval before any other payment.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
Sanctions screening

Screen names and crypto wallets against OFAC, UK, EU and UN sanctions lists, with list dates

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
SatGate – Economic Firewall for AI Agents

Budget, payment and audit controls for AI agent API calls and MCP tool calls.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
Saybooks

Books your AI keeps from your own bank statements: cards, loans, bills, receipts and the tax year.

Finance & CryptoCode & DevOps

Requires authOutdated checkNot measured5 / 22
SelieeAI

Run your business from Claude: websites, SEO, ads, social, payments, leads and AI media.

Marketing & SalesPayments & trading

Requires authOutdated checkNot measured5 / 22
SimianX AI

8-agent research committee, live analysis and scored news on US stocks and crypto, for any agent.

Finance & CryptoCode & DevOps

Requires authNot measured5 / 22Not checked yet
SingIt x402

Chat, web search, page reading and market data; owner-set daily and per-request key limits (USDC).

Finance & CryptoData access / search

Requires authNot measured5 / 22Not checked yet
SIWAI

Chart-pattern setups, screener, 13F funds, news and calendars for stocks, crypto, forex and more.

Finance & CryptoCode & DevOps

Requires authNot measured5 / 22Not checked yet
Skavio PDF, OCR & Document Processing MCP

OAuth PDF, OCR, invoice and audio processing with prepaid company credits; card or USDC funding.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
SOAR Record Gateway

SOAR security playbooks for AI agents: fetch, full-text search, and count. Metered via Stripe.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
Soumtok Heart — agent wallet & marketplace

Agent wallet & Pulse Market MCP — register, hire with escrow, earn USDC. 20 tools. MIT.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
Spain Official Gazette (BOE) to JSON

Spain's Official State Gazette (BOE) items as tagged JSON: grants, tax, public jobs, full text.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22Not checked yet
Spark

Build and run a business from your AI assistant, with hosting, payments, email and more built in.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured5 / 22
SqueezeOS — Institutional AI Market Intelligence

Institutional AI market intelligence: squeeze scanner, options flow, council verdicts. x402 RLUSD.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22Not checked yet
Stripe MCP by InsightfulPipe

Hosted Stripe MCP server for Claude, ChatGPT and Cursor, with each action switched per account.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured5 / 22
SumUp MCP Server

Tools to explore SumUp accounts, payments, customers, and payouts.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
SwapWallet

Crypto wallet: balances, P&L, history. Swaps, transfers and withdrawals need Telegram approval.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured5 / 22
Tape — Hyperliquid Analytics

Live Hyperliquid perps analytics for agents: funding, OI, whale prints, leaderboard, wallet risk.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
taxapp.nz

Your taxapp.nz records and NZ tax; adds and edits records only if an owner allows. Sign-in required.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22
Thousand API

Certainty for AI Agents. Deterministic MCP tools for dates, crypto, finance. 84 tools.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
three.ws Agent Wallet

Give your AI agent an x402 wallet: discover and pay for services in USDC, or earn from your own.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured5 / 22
three.ws x402 Bazaar

Discover and price paid agent services across the live x402 network, by three.ws.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured5 / 22

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