MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

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DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

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3360 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
AgentServices

52 paid x402 API endpoints for AI agents — crypto, data, DeFi, market intelligence.

Finance & CryptoPayments & trading

UnreachableNot measured5 / 22
AgentsHub Web Search

Live web search for AI agents. $0.001/call, x402 on Base, no API key.

Developer ToolsData access / search

UnreachableNot measured5 / 22
AgentsToolsHub

156 paid-per-call JSON APIs for AI agents over x402: calculators, live data, crypto, security, dev.

Finance & CryptoCode & DevOps

Outdated checkNot measured5 / 22
AgentToolbox Docs Pack

Query-matched doc excerpts in one JSON response. $0.01 USDC on Base via x402, pay-per-success.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
agri-ja 日本の農業政策・補助金・米の概算金

Japanese agriculture policy, subsidies and rice advance payments. 日本の農業政策・補助金・米の概算金

Finance & CryptoPayments & trading

UnreachableNot measured5 / 22
Alien Plugg x402 API

32 paid x402 endpoints for crypto, Zora & on-chain analysis. 10 MCP tools. USDC on Base.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Ask Gina Perps

Trade Hyperliquid perpetual futures from your Ask Gina wallet. Moves real funds.

Finance & CryptoPayments & trading

UnreachableNot measured5 / 22
Ask Gina Predictions

Trade Polymarket prediction markets from your Ask Gina wallet. Moves real funds.

Finance & CryptoPayments & trading

UnreachableNot measured5 / 22
Ask Gina Spot

Swap, transfer and manage liquidity positions from your Ask Gina wallet. Moves real funds.

Finance & CryptoPayments & trading

UnreachableNot measured5 / 22
Autonomy x402 Tools

Pay-per-call agent tools over x402: site audits, llms.txt generation, wallet watch, catalog.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Avenity AI Visibility

Hireable AI-visibility service: get a business named in AI answers. Free audit + x402 hire.

Developer ToolsCode & DevOps

Outdated checkNot measured5 / 22
Axiom Works AgentReader

x402 USDC APIs: web/PDF/search, UK CH/officer/charity, KYB+sanctions, SEC, VAT, EVM, FX.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
basebalance.cloud — x402 RPC & MCP gateway

USDC-gated Base JSON-RPC: free 10 req/min, $0.50 per 10k. Failover, cache, /mcp, ledger.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Cabrini Market Data

US equity data for AI agents — 23 years intraday + daily, SEC filings. x402 USDC payments.

Finance & CryptoData access / search

Outdated checkNot measured5 / 22
ChainRPC MCP

Safety-first EVM and Bitcoin RPC tools for balances, contracts, blocks, and transactions

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Crypto Market Intelligence MCP

Crypto prices, market overview, DeFi TVL, whale flows & anomaly scans for trading agents.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Crypto Price MCP

Free, keyless live cryptocurrency prices, market cap, and 24h change via CoinGecko.

Finance & CryptoCode & DevOps

Outdated checkNot measured5 / 22
Crypto Prices

Live and historical cryptocurrency prices via CoinGecko free API.

Finance & CryptoCode & DevOps

Outdated checkNot measured5 / 22
Crypto Prices Mcp

Unlock the power of real-time cryptocurrency data with our Crypto Price Insights MCP server.

Finance & CryptoCode & DevOps

Outdated checkNot measured5 / 22
CTRL

Visual DeFi workflow automation on Base + Ethereum mainnet.

Finance & CryptoAutomation & workflows

Outdated checkNot measured5 / 22
CYRE Guardian

Solana address risk grades and token scans for AI agents. Pay-per-call via x402 (USDC on Base).

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
Daepak Market Intelligence

Market analyst tools + AI agent: crypto, US equities, options, Korea, fundamentals, macro, backtests

Finance & CryptoCode & DevOps

Outdated checkNot measured5 / 22
DCL Trust Oracle — AI/LLM Output Audit (x402 MCP)

AI/LLM agent output audit MCP: policy eval, tamper-evident chain, AI safety, x402 USDC on Base.

Finance & CryptoPayments & trading

Outdated checkNot measured5 / 22
DexL Agents

Pay-per-call AI gateway: models, speech, web search, on-chain reads and NLP tools, via x402.

Finance & CryptoData access / search

Outdated checkNot measured5 / 22

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