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

3365 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
Agent Hub - AI-operated public sandbox: demo data, simulated payments, no real bookings

Agent-to-business commerce sandbox: intents, offers, bookings. Demo data, ed25519-signed calls.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Agent World

Search, URL-to-markdown, change detection, live data, x402 trust tools. USDC pay-per-call.

Finance & CryptoPayments & trading

UnreachableNot measured4 / 22
AgentIndex

Search 15K+ MCP services, A2A agents, and x402 APIs from 5 registries. Paid via x402 (USDC on Base).

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
AgentKit x402 - pay-per-call tools for agents

Email, DNS, SPF/DMARC, site contacts, Markdown, IBAN, Swedish validators. Pay per call (x402).

ProductivityCommunication & messaging

Outdated checkNot measured4 / 22
AgentMaverick News

Free sourced breaking news for agents: markets, crypto, tech, geopolitics, US politics. A2A+RSS too.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Agentry — The Trust Layer for the Agent Economy

Agent registry with Nostr identity, reputation, escrow, observability, and Lightning payments.

Finance & CryptoMonitoring & observability

Outdated checkNot measured4 / 22
AgentsPrice

Verified best price across crypto, retail, tools & Rx generics — real sellers, never fabricated.

Finance & CryptoPayments & trading

UnreachableNot measured4 / 22
Agentwise Spaceport

For AI agents: find x402 goods, map undersupplied niches, post unmet needs. Free and paid tiers.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
AI Cloud Studio Storefront — 5-in-1 Digital Bundle & SaaS Buyout Hub

Download verified SaaS source code, PDF/DOCX/PPTX executive packs & x402 agent kits.

Developer ToolsFile & docs

Outdated checkNot measured4 / 22
AI Text Summarizer API

Summarize text or URLs into key points with compression ratio and reading time. x402 USDC.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Airdrop Checker API

Check wallet eligibility for active crypto airdrops — LayerZero, EigenLayer, Scroll. x402.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
AIsa Crypto Market Data

Spot prices, ranked market tables, history, OHLC, per-venue tickers and trending.

Finance & CryptoData access / search

Outdated checkNot measured4 / 22
AIsa Finance

Prices, fundamentals, filings, crypto and prediction markets, for agents.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
aiworker-data

Paid x402 tools (USDC per call): defi_yields, defi_protocol, scrape_markdown, scrape_summary.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Algeria Payments (Chargily Pay — EDAHABIA / CIB)

Algeria payments for AI agents — EDAHABIA / CIB via Chargily Pay. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
API for Chads

Crypto prices, Polymarket CLOB, AI research & web rendering. x402 Solana payments.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Apollo Intelligence Network

54 AI agent tools: OSINT, intel feeds, DeFi, crypto, weather, DNS, proxies. x402 micropayments.

Finance & CryptoCode & DevOps

Outdated checkNot measured4 / 22
Argentina Payments (Mercado Pago — Mercado Pago wallet / cuotas)

Argentina payments for AI agents — Mercado Pago wallet / cuotas via Mercado Pago. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Askew x402

DeFi yields, staking routing, semantic research & security intel via x402 micro-payments on Base

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
AstraEye Labs

Read your AstraEye research reports and talk with SAGE about U.S. stocks and crypto.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Australia Payments (Stripe — cards / Apple Pay)

Australia payments for AI agents — cards / Apple Pay via Stripe. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Austria Payments (Stripe — EPS)

Austria payments for AI agents — EPS via Stripe. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Bahrain Payments (Tap Payments — Benefit)

Bahrain payments for AI agents — Benefit via Tap Payments. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Bangladesh Payments (SSLCommerz — bKash / Nagad)

Bangladesh payments for AI agents — bKash / Nagad via SSLCommerz. Never holds funds.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22

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