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

3330 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
Secant Agent Research Pack

Paid MCP web research for agents: search, extraction, citations, and x402 payment discovery.

Finance & CryptoPayments & trading

Outdated check1571 ms14 / 22
toll402 – EU & Nordic Data (x402)

Pay-per-call EU & Nordic data for AI agents: VAT/VIES, MiCA, ECB FX, holidays, DK power. x402.

Finance & CryptoPayments & trading

Responded1578 ms14 / 22
io.github.amvaleh/kadro-mcp-server

Search and book real photographers on Kadro (Iran) on a user's behalf, ending with a payment link.

Finance & CryptoPayments & trading

Responded1611 ms14 / 22
AgentIndex — measured reliability for agent services

Measured uptime, price and payment evidence for 19,021 agent services. Reliability, not quality.

Finance & CryptoPayments & trading

Outdated check1616 ms14 / 22
Veterical Vet Clinic

See your vet clinic's free slots, vets, service prices, payments and how busy each day is.

Finance & CryptoPayments & trading

Responded1675 ms14 / 22
LexRegPulse: Banking Regulation Brief

Daily US banking regulation brief, weekly digest, archive and comment-deadline tracker. No key.

LegalCode & DevOps

Responded1675 ms14 / 22
money.barker/stablecoin-yield

Barker's real-time stablecoin yield index + AI advisor + non-custodial deposit/redeem (x402 paid).

Finance & CryptoPayments & trading

Responded1933 ms14 / 22
出口单 chukoudan

外贸出口计算与数据 / China export tools: tax refund, quotes, container loading, CBM, FX rates.

Finance & CryptoPayments & trading

Responded2129 ms14 / 22
Agent Concierge

Find AI agents, MCP servers and x402 APIs for a task, ranked by recorded checks and quality.

Finance & CryptoPayments & trading

Responded2216 ms14 / 22
ScrapeMole

Pay-per-call YouTube data via x402 (USDC, Base): search, channels, playlists, video details, comment

MediaPayments & trading

Responded2391 ms14 / 22
Scorekeeper

Create live scoreboards, connect with OAuth, and prepare checkout or Stripe CLI payments.

Finance & CryptoPayments & trading

Outdated check2433 ms14 / 22
io.github.dimitrilaouanis-tech/onyx-mcp

Ed25519-signed ground-truth oracle — 63 paid x402 tools live on Base mainnet.

Developer ToolsCode & DevOps

Responded2490 ms14 / 22
BeliefState

26 account tools; 23 wallet tools (20 paid). Free company snapshots and cited research.

Finance & CryptoPayments & trading

Responded2549 ms14 / 22
Responded2724 ms14 / 22
Octodamus Intelligence Oracle

AI oracle: BTC/ETH/SOL signals, Polymarket edges, congressional trades. x402 $0.01/call on Base.

Developer ToolsCode & DevOps

Outdated check2778 ms14 / 22
Agent Utility Network (AveDaris)

Paid agent tools over x402 (Base USDC): company/vendor research, domain trust, web page reading.

Finance & CryptoPayments & trading

Outdated check3064 ms14 / 22
Agent Utility Network

Outcome-first x402 services led by AveDaris Company Intelligence with free task routing on Base.

Developer ToolsCode & DevOps

Outdated check3279 ms14 / 22
dev.vetagent/vetagent

Pre-trade safety check for AI agents: honeypot, tax, liquidity and rug risk before you buy.

Finance & CryptoPayments & trading

Responded128 ms14 / 22
Wicked MCP

Whole Wicked suite for agents: market data, SEC filings, wallet checks, risk, identity, memory.

Finance & CryptoData access / search

Responded244 ms14 / 22
Mempool Space

mempool.space MCP — Bitcoin block explorer + mempool/fee stats

Finance & CryptoPayments & trading

Responded70 ms14 / 22
io.github.benmilne-com/benmilne

Search and read essays by Ben Milne on payments, stablecoins, and company building.

Finance & CryptoPayments & trading

Responded106 ms14 / 22
Diogenes Autonomous Microservice Gateway

Autonomous AI microservices: 55 dynamic guardrails, contract audits & oracles via L402/x402/MPP.

LegalCode & DevOps

Responded112 ms14 / 22
Diogenes Gemini Suite & Agents MCP

Account-less MCP access to 45 Gemini models & autonomous agents via L402, x402, and MPP.

Developer ToolsCode & DevOps

Responded113 ms14 / 22
Helius

Helius MCP — deeper Solana wallet/asset data than solscan (helius.dev)

Finance & CryptoPayments & trading

Outdated check165 ms14 / 22

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