MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

3310 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
Company Lookup (GLEIF LEI, UK, Norway)

Confirm a company exists and is active (GLEIF, Norway registry). $0.02/call via x402.

Developer ToolsCode & DevOps

Outdated check139 ms14 / 22
VERIDEX

Verify Spanish companies by CIF: registry data, status and BORME filings, paid per call over x402.

Finance & CryptoPayments & trading

Outdated check140 ms14 / 22
WORKMINE

x402 pay-per-call APIs over MCP, settled in USDC on Base for autonomous agents and developers.

Finance & CryptoPayments & trading

Responded141 ms14 / 22
Domain Trust Check (DNS, Email Auth, TLS, Headers)

Check a domain's DNS, SPF/DMARC and TLS before trusting it. $0.003/call via x402.

Developer ToolsCommunication & messaging

Outdated check142 ms14 / 22
io.github.parkyucheol-del/alphapipeline

Pay-per-call x402 API for AI trading agents: pre-trade security checks, Polymarket & HIP-4 odds.

Finance & CryptoPayments & trading

Outdated check143 ms14 / 22
SYNTHORA x402 Intelligence Mesh

Calibrated intelligence via x402 (USDC Base). ERC-8004 #84581: 272 payments, 49 wallets.

Finance & CryptoPayments & trading

Responded147 ms14 / 22
io.github.ShieldZCash/mcp

Keyless non-custodial crypto payments for AI agents: payment links and tip jars, no API key.

Finance & CryptoPayments & trading

Responded150 ms14 / 22
AgentReeve Crypto Market Data

Crypto market data for AI agents: any coin via asset=, scanners, Bitcoin depth. x402, free samples.

Finance & CryptoData access / search

Responded154 ms14 / 22
CasitaTax

Spanish non-resident tax on a home in Spain: Modelo 210 estimate, deadlines, town cadastral data

Finance & CryptoPayments & trading

Responded154 ms14 / 22
OrionCMD Checks

Domain threat checks, a 30-day domain watch, TLS/DNS/email-auth checks and a $2 site audit (x402).

ProductivityCommunication & messaging

Responded155 ms14 / 22
io.github.cmdenney/logicnodes-mcp

Remote MCP for LogicNodes: Signed PII-Shield flagship + payable x402 agent tools on Base.

Developer ToolsCode & DevOps

Responded157 ms14 / 22
JYOTINT Sealed Forecasts

Bitcoin-anchored sealed-forecast record: search, grades, calibration, luck test. Read-only, no key.

Finance & CryptoPayments & trading

Responded158 ms14 / 22
io.github.digitalweb33333-creator/x402-solana

x402 paid API tools for AI agents on Solana: crypto safety, market data, KYB/AML verification.

Finance & CryptoData access / search

Responded158 ms14 / 22
Customs Tariff Lookup (UK Trade Tariff + US HTS)

Find HS codes and UK/US import duty rates for goods. $0.004/call via x402.

Developer ToolsCode & DevOps

Outdated check158 ms14 / 22
FlareWarden

Check if a site or service like Stripe is down, and monitor your sites, cron jobs and status pages.

Finance & CryptoMonitoring & observability

Responded160 ms14 / 22
Airport Weather & Delays (METAR, TAF, FAA)

Airport METAR/TAF weather and FAA delays by airport code. $0.003/call via x402.

TravelCode & DevOps

Outdated check161 ms14 / 22
Corporate Ownership Tree (GLEIF)

Find a company's parent chain and subsidiaries from GLEIF LEI data. $0.02/call via x402.

Developer ToolsCode & DevOps

Outdated check162 ms14 / 22
Research Paper & DOI Lookup (Crossref)

Verify a DOI or find papers via Crossref metadata. $0.005/call via x402.

Developer ToolsCode & DevOps

Outdated check166 ms14 / 22
Country Macro Indicators (World Bank)

Official World Bank macro indicators (GDP, inflation...) by country. $0.005/call via x402.

Finance & CryptoCode & DevOps

Outdated check167 ms14 / 22
Bookingmood MCP by usefulapi

Read Bookingmood bookings, availability, guests, payments and invoices; update bookings, contacts.

Finance & CryptoPayments & trading

Responded169 ms14 / 22
Global Weather (MET Norway)

Current weather and 7-day forecast for any place (MET Norway). $0.006/call via x402.

Developer ToolsCode & DevOps

Outdated check170 ms14 / 22
AgentGate

Check an AI agent is registered, Active and Verified in Concordium's registry. By Crypto Money Maker

Finance & CryptoPayments & trading

Responded171 ms14 / 22
Email Address Check (syntax, MX, disposable, SPF/DMARC)

Check email addresses for syntax, MX and disposable domains. $0.0015/call via x402.

Developer ToolsCommunication & messaging

Outdated check171 ms14 / 22
ai.ohmyfin/invoice

Cross-border invoices for AI agents: parties screened, VAT ID checked, EN 16931 e-invoice in PDF.

Finance & CryptoPayments & trading

Responded172 ms14 / 22

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