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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4034 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
SAP MCP Server

Solana-native MCP gateway for SAP, DeFi tools, SNS identity, and x402 payments.

Finance & CryptoPayments & trading

Responded2126 ms15 / 22
Obolus

Read-only payroll calculations and multi-country tax comparisons for eight countries.

Finance & CryptoPayments & trading

Responded2300 ms15 / 22
Crovia — verifiable silence (TACET) and Crovia Seal

Signed, Bitcoin-anchored observations of AI training-data disclosure; verifies silence proofs, seals

Finance & CryptoPayments & trading

Responded2367 ms15 / 22
Keryx

Budgeted research with cited evidence and visible payment state on the selected Arc network.

Finance & CryptoPayments & trading

Responded2878 ms15 / 22
Moneda

Financial intelligence for AI: manage balances, transactions, payments, and more

Finance & CryptoPayments & trading

Responded3792 ms15 / 22
PayGate MCP — Monetization Gateway for AI Agents

Monetize any MCP server: x402 paywall, pay-per-call billing in USDC on Base, agent marketplace.

Finance & CryptoPayments & trading

Responded6081 ms15 / 22
SCRIPTMASTERLABS — SqueezeOS MCP

SqueezeOS MCP for x402-paid USDC APIs on Base. Flagship read settle-proven 2026-11-02 (SELF-PROOF).

Finance & CryptoPayments & trading

Responded6493 ms15 / 22
x402 Pay — USDC API Payment Helper

Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.

Finance & CryptoPayments & trading

Responded6686 ms15 / 22
io.github.ContentWriterco/leki-mcp

Polish medicines: refunded drug prices, patient co-payment and cheaper substitutes

HealthcarePayments & trading

Outdated check37 ms14 / 22
McpStamp Invoices

Numbered invoices with VAT as A4 PDFs, a client list, payments and a list of overdue invoices.

Finance & CryptoPayments & trading

Responded42 ms14 / 22
Cuéntica MCP by usefulapi

Read invoices, incomes and expenses; create customers and providers in Cuéntica.

Finance & CryptoPayments & trading

Outdated check49 ms14 / 22
peck-mcp

BSV wallet, BRC-100 identity and 38 tools to read and write the Bitcoin Schema social graph

Finance & CryptoPayments & trading

Responded50 ms14 / 22
Zenfulfillment MCP by usefulapi

Read Zenfulfillment orders and stock; import or cancel orders and mark returns done.

Finance & CryptoPayments & trading

Outdated check51 ms14 / 22
Oases MCP by usefulapi

Read students, parents, sessions and invoices; add notes and update fields in Oases.

Finance & CryptoPayments & trading

Outdated check51 ms14 / 22
Mindee MCP by usefulapi

Turn PDFs and images into typed fields — invoices, receipts, IDs and custom models — via Mindee OCR.

Finance & CryptoPayments & trading

Outdated check51 ms14 / 22
Hint Health MCP by usefulapi

Read Hint Health patients, memberships, plans, invoices and payments for direct primary care.

Finance & CryptoPayments & trading

Outdated check51 ms14 / 22
White Label Loyalty MCP by usefulapi

Read rewards and customer wallets, and buy rewards for a customer in White Label Loyalty.

Finance & CryptoPayments & trading

Outdated check52 ms14 / 22
Steady MCP by usefulapi

Read publication income, plans and subscriptions; list newsletter subscribers in Steady.

Marketing & SalesPayments & trading

Outdated check52 ms14 / 22
PaySpace MCP by usefulapi

Read PaySpace employees, organization, payroll runs, payslips and leave records. Read-only.

Finance & CryptoPayments & trading

Outdated check52 ms14 / 22
Modern Treasury MCP by usefulapi

MCP server for Modern Treasury — payment orders, transactions, counterparties and ledgers.

Finance & CryptoPayments & trading

Outdated check52 ms14 / 22
ClassMarker MCP by usefulapi

Read ClassMarker groups, links, exams and recent results; manage question bank and access codes.

Finance & CryptoPayments & trading

Outdated check52 ms14 / 22
CentreCareOS MCP by usefulapi

Read students, parents, attendance, invoices, rooms and daily reports in CentreCareOS.

Finance & CryptoPayments & trading

Outdated check52 ms14 / 22
io.github.tim777z/utopia-megastore

Tech store for AI agents: search, bundles, negotiation, payment splits, PayPal checkout.

Finance & CryptoPayments & trading

Outdated check53 ms14 / 22
Pin Payments MCP by usefulapi

Read Pin Payments charges, refunds, balances, transfers and subscriptions without moving money.

Finance & CryptoPayments & trading

Outdated check53 ms14 / 22

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