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
io.github.gigsoul/x402-api

AI API for marketing, content and outreach. 22 endpoints. Pay with USDC on Base via x402.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
io.github.jason2016/clawshow-mcp-server

Instant Backend for SMBs: pages, payments, eSign AES eIDAS, notifications, inventory, reports

Finance & CryptoCommunication & messaging

Outdated checkNot measured4 / 22
io.github.MatsushitaTokitsugu/micro-data-api-factory

17+ Japan MCP tools (weather/calendar v2/local-pack/enrich). x402 on Base, wallet-free trial.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
io.github.metamorphosis-sre/devdrops-property

UK property MCP: Land Registry prices, company charges, House Price Index. x402 USDC on Base.

Real Estate & PropertyPayments & trading

Outdated checkNot measured4 / 22
io.github.reitsmasieto-wq/overcome-stress

Stress recovery protocols via Lightning payments: post-concussion, post-COVID, burnout

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
io.github.sarduine13-star/agent-teller

Verify AI agent payments and detect fraud. Input: agent_id, amount, service_id.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
io.github.Tsubaki414/toolfi

Open API Marketplace for AI Agents. Crypto data tools with USDC payments on Base.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
io.github.vinaybhosle/agentstamp

Identity certificates, public registry, and wishing well for AI agents — x402 micropayments on Base

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
io.github.Zuga-luga/Zugabot

AI dev tools + image generation, paid per-use with USDC on Base (x402).

MediaPayments & trading

UnreachableNot measured4 / 22
io.nip.5-9-107-124/token-risk

DeFi pool yield+security intelligence & token/contract risk scanner. USDC on Base via x402.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
io.sslip.195.82.231.168/agent-data-api

Pay-per-call (x402/USDC-Base) web + crypto data tools for AI agents: audit, extract, crypto, DeFi.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
lol.metamuse/wallet

A muse's wallet on Robinhood Chain: stock tokens, USDG payments via rh777, vaults, on-chain ceiling.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
online.sigmaintelligence/agentlab-services

Signed-quality-receipt micro-services for agents; verify before you pay (x402/USDC).

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
org.cieltech.pathguard/pathguard

Crypto transaction safety tool — screens addresses and transactions for scam risk.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
uk.co.fsmacrypto/site

FSMA Crypto Promotions Checker: the site's own MCP server — checker, enquiry (enquiry = a human...

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
uk.co.invoicefactoringcost/site

Invoice Factoring Cost: the site's own MCP server — calculator, enquiry (enquiry = a human...

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
uk.co.latepaymentinterest/site

Late Payment Interest: the site's own MCP server — calculator, enquiry (enquiry = a human...

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
uk.co.locumtaxcalculator/site

Locum Tax Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human...

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
uk.co.taxinvestigationcost/site

Tax Investigation Cost: the site's own MCP server — enquiry (enquiry = a human handoff, not a...

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
uk.wintergreen/financial-data

Financial data for AI agents: crypto data, Polymarket odds, weather/oil calibration, trust scoring.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
1NFER Inference Discovery

Inspect 1NFER models, crypto funding terms and task cost without keys or paid calls.

Finance & CryptoAI / LLM tooling

Outdated checkNot measured4 / 22
9192 Public Compute

Remote MCP for 9192 discovery, pricebook, payment rails, GET_PULSE quotes, and receipt checks.

Finance & CryptoPayments & trading

UnreachableNot measured4 / 22
AccessGraph

Policy-aware web access preflight: robots, licensing, payment and advertised routes for agents.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Address Validator API

Parse, validate and normalize postal addresses. Detect country, verify format. x402.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22

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