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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3362 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
io.github.physics-star-cat/databutler-tax

Take-home pay after tax and social contributions for nine countries, with tax year.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22
io.github.physics-star-cat/databutler-uk-vehicle-rules

UK vehicle tax (VED) bands, expensive-car supplement, EV rules and MOT fees, sourced.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22
io.github.physics-star-cat/databutler-us-rates

US federal 2026 tax brackets, standard deductions, payroll and retirement limits, sourced.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22
io.github.quantumskils-arch/african-fintech-mcp

Mobile money fees, African tax rates, currency conversion and Uganda PAYE for AI agents.

Finance & CryptoCode & DevOps

Requires authOutdated checkNot measured5 / 22
io.github.theluckystrike/credit-note

Credit notes against an invoice or standalone: drafts, finalization, rendering, totals.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
io.github.theluckystrike/estimate-template

Quotes and estimates: VAT line items, a validity date, an A4 PDF, accept makes an invoice.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
io.github.theluckystrike/invoice-generator-freelancers

Freelancer invoice generator: line items, tax, totals, PDF - issued from a chat message.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
io.github.theluckystrike/quote-template

Quotes and estimates: VAT line items, a validity date, an A4 PDF, accept makes an invoice.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
io.github.theluckystrike/receipt-expense-scanner-reports

Log expenses and export clean reports for tax time - your ledger never leaves your machine.

Finance & CryptoCode & DevOps

Requires authNot measured5 / 22Not checked yet
io.github.virtualsms-io/sms

Real SIM numbers for AI agents: SMS verification, rentals, proxies, cloud browser, x402 deposits.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22Not checked yet
my.taokeh/mcp

Malaysian SME accounting, e-Invoice and payroll for your AI. 77 tools; writes are approved drafts.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22
6Frame Verify

Pre-launch website QA in 60s via real Chromium. $3/check; agents can pay in USDC (x402).

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
AfterFees

Crypto funding-rate arbitrage across 50 exchanges, net of fees and order-book slippage. Read-only.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
Agent Data Tools: Chain data

366 tools: balances, blocks, gas, txs and logs on 5 EVM chains, plus Bitcoin. 25 free calls.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
Agent Data Tools: Prices and DeFi

57 tools: token prices, wallet and contract risk, liquidity pools, FX. 25 free calls.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
Agent Einstein — Crypto & Market Intelligence

AI price forecasts, whale flows, market sentiment and prediction signals. 18 tools free, no account.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
AgentaOS

Merchant of record: payment links, checkouts, subscriptions and invoices, with VAT handled.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured5 / 22
AgentPay

Agent payments, API key vaulting, and governed mandates. Agents spend within user-defined limits.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured5 / 22
AgentPay (all tools)

Pay-per-call web extract, DNS/WHOIS/IP lookup, PDF/RSS/sitemap tools. x402 USDC on Base/Algorand.

Developer ToolsPayments & trading

Requires authNot measured5 / 22Not checked yet
AgentPay Doc Tools

Pay-per-call PDF to text, RSS/Atom to JSON, sitemap to URLs for agents. x402 USDC, Base/Algorand.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
AgentPay Domain & Network Lookup

Pay-per-call DNS, WHOIS/RDAP, IP and domain reports for agents. x402 USDC on Base or Algorand.

Developer ToolsPayments & trading

Requires authNot measured5 / 22Not checked yet
AgentPay Web Extract

Pay-per-call web page to markdown, metadata and links for agents. x402 USDC on Base or Algorand.

Finance & CryptoPayments & trading

Requires authNot measured5 / 22Not checked yet
AI Orderability (AIO) Agents CPG with x402: Retail & Marketplace Sourcing

CPG sourcing for AI Agents with x402: BPC brands, agent IM, Trading Desk. GreenCore Solutions Corp.

Finance & CryptoPayments & trading

Not measuredNot measured5 / 22
AlgoVesta MCP Trading

Trade 16 crypto exchanges + MetaTrader 5 from your AI assistant via one MCP connection.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured5 / 22

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