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

4730 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
pdfzen

Render PDFs from 45 starter templates or raw HTML. Pay-per-render with USDC via x402.

Finance & CryptoPayments & trading

Responded100 ms13 / 22
Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP

Verify Bitcoin PSBTs, addresses, and BIP380 descriptors; earn or spend WorkSats L402 bearer credits.

Finance & CryptoPayments & trading

Responded100 ms13 / 22
Open Claw x402 Tools

Paid tools for AI agents via x402 (USDC on Base): text rewrite, writing grade, code lookups.

Finance & CryptoPayments & trading

Responded131 ms13 / 22
NTWX AAAS catalogue

Read-only parent catalogue of NTWX live surfaces. No checkout.

Finance & CryptoPayments & trading

Responded146 ms13 / 22
NTWX Studio catalogue

Read-only NTWX Studio catalogue for consumer agents. No checkout.

Finance & CryptoPayments & trading

Responded147 ms13 / 22
Responded155 ms13 / 22
TWVS — Industrial Valves & Engineering Supply Catalog

Query industrial valve specifications, pressure ratings, stock availability, and trade quotes.

Finance & CryptoPayments & trading

Responded251 ms13 / 22
SanctionsAI

OFAC sanctions screening for AI agents: 1,050 wallets, 19,389 SDN names, <100ms. Free tier, no key.

Finance & CryptoPayments & trading

Outdated check253 ms13 / 22
APEX EVM Reads

Agent reads, ETH/Base/Arc/BNB: prices, FX, sanctions, payment checks, balances, NFTs, gas, ENS.

Finance & CryptoPayments & trading

Responded296 ms13 / 22
io.github.iPAYX-Technologies/mcp-fx-audit

FX forensic audit MCP. Detects hidden bank markups on cross-border payments. FINTRAC MSB.

Finance & CryptoPayments & trading

Responded379 ms13 / 22
Crypto Perp Funding Arbitrage Radar MCP

Hyperliquid, Binance & Bybit perpetual funding rate arbitrage & DeFi APY yield scanner MCP.

Finance & CryptoPayments & trading

Responded438 ms13 / 22
CFPB Consumer Financial Complaints & Bank Audit

Search US CFPB consumer complaint records across banks, lenders, and fintech institutions.

Finance & CryptoData access / search

Responded519 ms13 / 22
Base L2 Transaction Simulator & Wallet Drain Guard

Pre-execution Base eth_call/eth_estimateGas simulator & ERC-20 approve drain detector.

Finance & CryptoPayments & trading

Responded524 ms13 / 22
cc.accrue/mcp

Stablecoin Yield Index (SYX) and live USDC vault APYs across Ethereum, Base, Arbitrum.

Finance & CryptoPayments & trading

Responded542 ms13 / 22
Agentic Prompt

1,177 free agentic trading prompts for Claude and Robinhood MCP.

Finance & CryptoPayments & trading

Responded544 ms13 / 22
DocuQueue MCP

MCP server for PDF generation, form filling, batch invoices and contracts. MIT, free tier, hosted.

Finance & CryptoPayments & trading

Responded556 ms13 / 22
DexScreener DeFi Token Liquidity & Pair Security Audit

Audit on-chain DEX token liquidity pairs, volume, price action, and FDV via DexScreener.

Finance & CryptoPayments & trading

Responded561 ms13 / 22
Google Cloud 17,671 API, SKU & MCP Schema Catalog

Sub-millisecond FTS5 search across 17,671 Google Cloud APIs, SDKs, Billing SKUs, and MCPs.

Finance & CryptoPayments & trading

Responded562 ms13 / 22
SCRIPTMASTERLABS — MNEMOS Options Radar

Options radar MCP: Astra scorecard, decisions ledger, scans. Settle-proven 2026-11-02 (SELF-PROOF).

Finance & CryptoPayments & trading

Responded592 ms13 / 22
FDIC BankFind Institutional Financial Health Audit

Query official FDIC BankFind institution financial health, assets, deposits, and CERT status.

Finance & CryptoPayments & trading

Responded594 ms13 / 22
TrustBench

x402 provider rankings + Ed25519-signed payment receipts + signature verification (3 tools).

Finance & CryptoPayments & trading

Responded627 ms13 / 22
SwarmSync.AI

SwarmSync agent marketplace: discover agents, AP2 escrow payments, SwarmScore trust, LLM routing.

Finance & CryptoPayments & trading

Responded672 ms13 / 22
Hive Vault

A2A ZK wallet recovery — guardian swarm, no seed phrase, HiveLaw enforcement

Finance & CryptoPayments & trading

Responded681 ms13 / 22
JarvisClaw — AI Gateway & API Marketplace

320 AI models + 2,720 pay-per-call APIs. x402 USDC on Base or Solana, no API key.

Finance & CryptoPayments & trading

Outdated check764 ms13 / 22

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