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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3303 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
x402 & MCP Server Index (Tanod)

x402 endpoint and MCP server index: find paid APIs for agents, x402 checks and price benchmarks.

Finance & CryptoPayments & trading

Outdated check1874 ms15 / 22
Macro & Commodities Desk

Kalshi macro: Fed rate odds, gold, silver, oil and bitcoin edges, 15-min markets, Kelly sizing.

Finance & CryptoPayments & trading

Outdated check1919 ms15 / 22
Crypto Markets Desk

Kalshi 15-minute crypto markets, perps funding, liquidation math and bitcoin model edges.

Finance & CryptoPayments & trading

Outdated check1993 ms15 / 22
Comrades of War Archive

Search a Spanish gaming-community archive and receive exact x402 page purchase URLs.

MediaCode & DevOps

Responded2079 ms15 / 22
Chord

Swap quotes + unsigned txs on 8 EVM chains, plus Solana data: boards, candles, wallet PnL. No key.

Finance & CryptoPayments & trading

Outdated check2105 ms15 / 22
SAP MCP Server

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

Finance & CryptoPayments & trading

Outdated check2126 ms15 / 22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

Outdated check2367 ms15 / 22
Crypto & Macro Market Data (Tanod)

Market data for agents: token prices, DeFi TVL and DEX volume, perp funding, FX, yields, SEC data.

Finance & CryptoData access / search

Outdated check2444 ms15 / 22
Keryx

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

Finance & CryptoPayments & trading

Responded2878 ms15 / 22
Impreza Host

No-KYC offshore hosting an AI agent runs end-to-end: no-email signup, crypto, VPS, deploy, Tor.

Finance & CryptoCode & DevOps

Outdated check3404 ms15 / 22
Moneda

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

Finance & CryptoPayments & trading

Outdated check3792 ms15 / 22
io.github.wygogogo19/robotbase-mcp

Agent MCP: 65 tools — 5-chain verification, risk, prediction & crypto trends, 17 web tools.

Finance & CryptoCode & DevOps

Responded4792 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

Outdated check6081 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

Outdated check6493 ms15 / 22
io.github.wygogogo19/robotbase-web3

Agent MCP: 65 tools — 5-chain verification, risk, prediction & crypto trends, 17 web tools.

Finance & CryptoCode & DevOps

Responded6673 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

Outdated check6686 ms15 / 22
DeltaSignal ATLAS-7

SEC/XBRL issuer intelligence for crypto public companies via MCP, OpenAPI, x402, and MPP.

Developer ToolsCode & DevOps

Outdated check6713 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
Crypto Market Data

Live crypto market data and Hyperliquid wallet reports for AI agents, paid per call with x402.

Finance & CryptoData access / search

Outdated check47 ms14 / 22
peck-mcp

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

Finance & CryptoPayments & trading

Outdated check50 ms14 / 22
Scrada MCP by usefulapi

Read journals, cash books and Peppol documents; record payments in Scrada.

Finance & CryptoPayments & trading

Responded54 ms14 / 22
PagSafe MCP by usefulapi

Create Pix charges, check and refund payments, and manage Pix subscriptions in PagSafe.

Finance & CryptoPayments & trading

Responded56 ms14 / 22

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