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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3361 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
EmidLabs Backtest

Run crypto trading strategy backtests through EmidLabs's Backtesting API.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
ExtractEdge

Any web page -> clean markdown. Firecrawl-lite, 0.001 USDC/extract (x402, Base), free demo.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Feedback Synthesis MCP

Synthesize GitHub Issues, HN and App Store reviews into ranked pain clusters. Pay-per-call x402.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
FlowSentry

Security scanner for n8n workflows + live MCP Trust-Check. 18 rules, OWASP mapped. Paid x402 API.

Developer ToolsAutomation & workflows

Outdated checkNot measured5 / 22
Forge Agent Hub

Pay-per-call APIs via x402 USDC on Base. Hosted MCP: original gateway; stdio: full catalog.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
fr-legal-kit

French legal helpers for agents: e-invoice, L441-10, SIRET/IBAN. $0.01 USDC x402

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Friday Seller Tools

Marketplace-seller tools: listing audits, PPC kits, pricing, compliance. Paid via x402 or card.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
gate402 merchant checkout

Drop-in x402 checkout for merchants: issue terms, verify payment. $0.01 each.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
GenesisPay

Let an AI agent find and pay for x402 APIs and products in USDC on Base, within owner-set limits.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Gig Worker Tax Toolkit

2026 quarterly tax estimates, SE tax, safe harbor and mileage for 1099 gig workers.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
GoAI Moat Cross-Border Tax Compliance

VAT registration, US sales-tax nexus and filing calendars for cross-border sellers

ProductivityFile & docs

Outdated checkNot measured5 / 22
GPT55 Model Gateway

Remote MCP gateway for GPT-5.6 Luna, Soul, Terra, and x402-paid agent tools with no API key.

Finance & CryptoPayments & trading

UnreachableNot measured5 / 22
Guava Wallet Intelligence

Crypto security, honeypot detection, wallet analysis, and token risk scoring across 31 blockchains.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
ImagePay MCP

ImagePay MCP: 40 x402 paid API tools (OCR, PDF, image, QR, tabular, web). Pay per call on Base.

MediaCode & DevOps

Outdated checkNot measured5 / 22
Industrial Platform

x402 MCP with exact and batched payments for recurring wallet, trading, market and web workflows.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Industrial Platform Market Data

Recurring crypto price, candles, order-book and market snapshot data for agents.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Industrial Platform Pretrade

Pre-trade wallet, allowance, gas, price and order-book context for autonomous execution.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Industrial Platform Transaction Watch

Poll EVM transactions until confirmed or reverted with recurring x402 payments.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Industrial Platform Treasury

Recurring crypto treasury snapshots with balances, activity and gas state.

Finance & CryptoCode & DevOps

Outdated checkNot measured5 / 22
Industrial Platform Wallet Monitor

Recurring wallet, USDC and ERC-20 monitoring for autonomous agents.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Industrial Platform x402 Adoption Search

Search current x402 adoption, integrations, launches and machine-payment activity.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
IRONCLAW BTC Node

Bitcoin full node data via MCP: fees, mempool, txs, whales, SEC. $0.001/call USDC on Base.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Kaal Agent Safety (x402 paid MCP)

Paid MCP tools for URL payment-safety scanning and provider recommendations; USDC on Base via x402.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Kestrova: Solidity Vulnerability Scan

Solidity vulnerability scan (Slither) for AI agents. Free preview; full report 1 USDC on Solana x402

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22

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