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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3359 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
Creator Desk Commerce Completion Verify

Evidence-based commerce completion checks for agents. x402 paid calls and free standard metadata.

Developer ToolsCode & DevOps

Responded415 ms11 / 22
US Company Intelligence for AI Agents (SEC EDGAR, x402)

SEC EDGAR company briefs for agents: cited synthesis, XBRL metrics. x402/USDC, no account.

Finance & CryptoPayments & trading

Responded431 ms11 / 22
io.github.michu5696/paycrow

Escrow protection for agent payments on Base — USDC held in smart contract until job completion.

Finance & CryptoPayments & trading

Responded433 ms11 / 22
AI 代理人任務中樞

台灣繁中:一個 MCP 端點串接 19 個台灣資料站工具,並可搜尋 MCP 伺服器與 x402 付費 API。

Finance & CryptoPayments & trading

Responded437 ms11 / 22
Scrooge Tool Mill

8 pay-per-call agent tools: company card $0.03, page meta $0.002. USDC on Base via x402.

Finance & CryptoPayments & trading

Responded448 ms11 / 22
AV Hub x402 Tools

Ten pay-per-call x402 tools for game planning and bounded data transforms on Base USDC.

Finance & CryptoPayments & trading

Responded476 ms11 / 22
Vino & Views

Free reports, EVM/Solana token payment links and capped zero-fee EVM USDC escrow. Wallet signatures.

Finance & CryptoPayments & trading

Responded480 ms11 / 22
Mekler AI

Research, inference, data/web/email tools, and x402 conformance, service catalog and grade feeds.

ProductivityCommunication & messaging

Responded500 ms11 / 22
Angel Numbers Deterministic API

Deterministic angel number meanings via MCP, with x402 USDC paid interpretations on Base.

Finance & CryptoPayments & trading

Responded538 ms11 / 22
ai.tachyo/tachyo

Crypto market intelligence, token rug-checks, and wallet verification in one MCP server.

Finance & CryptoPayments & trading

Responded592 ms11 / 22
Invoice Preflight

Evidence-backed UBL, PDF, and image invoice checks before approval or payment.

Finance & CryptoPayments & trading

Responded596 ms11 / 22
FaultKey · CausalLayer

Deterministic AI-liability attribution: signed, Bitcoin-anchored vendor/deployer/user fault split.

Finance & CryptoPayments & trading

Outdated check610 ms11 / 22
com.agenticpaywall/composer

Composes + runs multi-step external-data workflows for one quoted USDC price (x402).

Finance & CryptoPayments & trading

Responded697 ms11 / 22
io.github.justuncase1210-del/ai-agent-hub

Pay-per-call APIs for AI agents: queries, storage, ads. Billed in USDC via x402.

Finance & CryptoPayments & trading

Responded715 ms11 / 22
Echo Sentiment — XLM Market Sentiment

XLM (Stellar) market sentiment for agents — keyless, pay-per-call via x402 (USDC on Base).

Finance & CryptoPayments & trading

Responded724 ms11 / 22
com.jpyc-service/ec-storefront

JPYC (JPY stablecoin) EC platform MCP: product search, x402 gasless checkout, order status.

Finance & CryptoPayments & trading

Responded733 ms11 / 22
Plumb Data Exchange

Verified table jobs and RPC-free payment verification (Base/Ethereum). Pay per call via x402.

Finance & CryptoPayments & trading

Responded746 ms11 / 22
Product Admin by Nova (CIVAI)

I manage your Nova products, create/update/delete, payment & logistics config, icons, webhook secre…

Finance & CryptoPayments & trading

Responded747 ms11 / 22
Web Search & Data API

Web search, scraping, Google Trends and data lookups. Paid per call in USDC on Base via x402.

Finance & CryptoData access / search

Responded754 ms11 / 22
XH Agents Connector (read-only)

Read-only XH Agents MCP connector: service catalogue, payment info, verification checks.

Finance & CryptoPayments & trading

Responded795 ms11 / 22
Email Preflight

x402 v2 payment requests; relays compatible clients' signed payments to the existing product API.

Finance & CryptoPayments & trading

Responded969 ms11 / 22
MOSN Solana Safety

Solana token rug checks and safety-checked Jupiter swaps for AI agents; paid data via x402.

Finance & CryptoPayments & trading

Responded972 ms11 / 22
Alpha (Mossland)

Korean crypto × AI media MCP — channel stance, daily briefs, RAG, canonical store, AI personas.

Finance & CryptoAI / LLM tooling

Responded992 ms11 / 22
io.github.iainkek/flipr-x402

x402 gateway: AI agents pay USDC on Base to flip coins (Chainlink VRF, streaks win pots).

Finance & CryptoPayments & trading

Responded1013 ms11 / 22

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