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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1506 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
com.halffee/coinrebate

Compliance-filtered crypto exchange fee comparison and rebate-link routing for AI agents.

Finance & CryptoPayments & trading

Outdated check1578 ms12 / 22
The Bitcoin Adviser

Education-only MCP tools for Bitcoin security, retirement and fees, from The Bitcoin Adviser.

Finance & CryptoPayments & trading

Outdated check3337 ms12 / 22
Outdated check31 ms12 / 22
Outdated check31 ms12 / 22
Supabase URL Shape

Check a Supabase project URL shape. Secrets discarded.

Developer ToolsDatabase

Outdated check41 ms12 / 22
Outdated check43 ms12 / 22
Ranuk Web Accessibility & AST Security Auditor

Edge MCP Server for live WCAG 2.1 AA accessibility compliance and AST security audits.

Developer ToolsCode & DevOps

Outdated check47 ms12 / 22
US EPA Compliance Check MCP

EPA compliance, violations, inspections and penalties for any US ZIP code or company.

Developer ToolsCode & DevOps

Outdated check69 ms12 / 22
EuroComply — EU Regulatory Compliance

EU regulatory compliance data: 17 regulations, deadlines, enforcement actions. EU-hosted.

LegalKnowledge & memory

Responded112 ms12 / 22
io.github.Une-education/sino-gateway

Deterministic China trade compliance: GACC customs, CCC clearance, and PIPL transfers.

EducationCode & DevOps

Outdated check115 ms12 / 22
VAT.SUPPORT

EU & UK statutory VAT compliance, VIES validation, ViDA e-invoicing & Art. 196 reverse-charge.

Developer ToolsCode & DevOps

Outdated check139 ms12 / 22
Building Compliance Agency — Municipal Plan & Occupancy

Building plan approvals, occupancy certificates, and municipal compliance readiness tools.

GovernmentData access / search

Outdated check179 ms12 / 22
Agent Index

Free open dataset of compliance, security and risk AI agents and audit firms, by Heritage Services.

Data & AnalyticsData access / search

Outdated check261 ms12 / 22
Food Compliance Agency — R638 COA & Hygiene Audits

South African R638 Certificate of Acceptability (COA) food safety compliance and audit tools.

OtherOther

Outdated check266 ms12 / 22
InfoSec Job Board

Search 10k+ live cybersecurity jobs from 246 security companies, plus salary benchmarks and stats.

SecurityData access / search

Responded467 ms12 / 22
LinkedIn Profile, Company & B2B Enrichment API MCP Server

Real-time B2B professional profiles, company intelligence & jobs hosted MCP. OAuth or API key.

Developer ToolsCode & DevOps

Responded514 ms12 / 22
DexScreener DeFi Token Liquidity & Pair Security Audit

Audit on-chain DEX token liquidity pairs, volume, price action, and FDV via DexScreener.

Finance & CryptoPayments & trading

Outdated check517 ms12 / 22
FIRST EPSS CVE Exploit Score & OSV Vulnerability Audit

Real-time FIRST.org EPSS 30-day CVE exploit probability scoring and OSV package security audit.

SecurityMonitoring & observability

Outdated check522 ms12 / 22
OFAC SDN Screening

Screen a name against the U.S. Treasury OFAC SDN list. Information, not a compliance determination.

OtherOther

Responded539 ms12 / 22
SHA-256 Hash-Chained AI Agent Compliance & Decision Notary

Tamper-evident SHA-256 hash-chained decision notary for EU AI Act, NIST AI RMF & SOC2.

SecurityMonitoring & observability

Outdated check557 ms12 / 22
AW-1 Sovereign Circuit Breaker

Deterministic sub-0.2ms AST security circuit breaker and agent containment engine.

Developer ToolsCode & DevOps

Outdated check578 ms12 / 22
Google deps.dev OpenSSF Security Scorecard & Dependency Audit

Google Open Source Insights (deps.dev) OpenSSF Security Scorecard & dependency tree audit.

OtherOther

Outdated check590 ms12 / 22
Compliance Batch Alignment

Check whether a NAICS code aligns with a vertical: a routing-for-review signal, not a determination.

OtherOther

Responded608 ms12 / 22
B2BProfileAPI — Professional Profile, Company & Org Enrichment MCP Server

Real-time B2B professional profiles, company firmographics & org data MCP. OAuth or API key.

Developer ToolsCode & DevOps

Responded609 ms12 / 22

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