MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

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DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

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1519 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
AI Agent Security Audit

AI agent security audit: red-team probes plus missing-guardrail review with fixes.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
AI Agent Security Scanner

Security scanner for AI agents and MCP servers: injection, jailbreak, tool abuse.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
AI-operated. Email authentication reader: six free tools, no key, no signup.

AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.

ProductivityCommunication & messaging

Outdated checkNot measured4 / 22
Askew x402

DeFi yields, staking routing, semantic research & security intel via x402 micro-payments on Base

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Bardo

Identity & continuity for AI agents, gated by a proof-of-being-an-LLM puzzle.

Developer ToolsAI / LLM tooling

Outdated checkNot measured4 / 22
CitePulse AI Mirror — GEO & LLM Citation Readiness MCP Server

Audit domains for ChatGPT, Perplexity & Claude GEO citation readiness and llms.txt compliance.

Developer ToolsAI / LLM tooling

Outdated checkNot measured4 / 22
Clair

Audits AI-built websites for France and Belgium: cookies, GDPR, legal pages, exposed keys, security.

LegalKnowledge & memory

Outdated checkNot measured4 / 22
Clarid Compliance

Check bank marketing for FDIC, NCUA, TILA, Reg DD, Reg Z, UDAAP, and Equal Housing compliance.

Real Estate & PropertyData access / search

Outdated checkNot measured4 / 22
ColoringBookify

Create coloring pages and books. OAuth + Business plan required; AI generation uses credits.

Developer ToolsCode & DevOps

Requires authNot measured4 / 22
Constat MCP — FDA Device Evidence Lifecycle

FDA and CMS evidence for AI medical devices: 510(k), postmarket, reimbursement, and compliance.

HealthcareData access / search

Outdated checkNot measured4 / 22
Cybersecurity Vulnerability Intel

CVE lookup via NIST NVD, CISA KEV, EPSS, and MITRE ATT&CK. 7 tools.

SecurityCode & DevOps

Outdated checkNot measured4 / 22
Cybret findings

Validated API and app vulnerability findings with remediation guidance.

SecurityMonitoring & observability

UnreachableNot measured4 / 22
DataBR — API de Dados Públicos Brasileiros

Brazilian public data API for AI agents. BCB, IBGE, CVM, B3, compliance. x402 payments on Base.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
Duskly

MLS compliance for edited listing photos: classify edits, write disclosures, verify provenance.

MediaAI / LLM tooling

UnreachableNot measured4 / 22
Environmental Compliance

EPA air quality monitoring and HUD foreclosure data. 3 MCP tools for environmental and housing data.

Real Estate & PropertyMonitoring & observability

Outdated checkNot measured4 / 22
Ethereal Goods x402 Tools

70+ pay-per-call security, crypto, and data tools for AI agents via x402 USDC micropayments on Base

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
FeedOracle Compliance Agent

MiCA compliance evidence, stablecoin risk, macro regime, agent governance. 79 tools.

Finance & CryptoPayments & trading

Outdated checkNot measured4 / 22
FET112

Security intelligence for AI agents monitoring Ethereum before actions.

Finance & CryptoMonitoring & observability

UnreachableNot measured4 / 22
Frogeye Security Scanner

Zero-config MCP security scanner for AI-generated apps. 25K+ vulnerability patterns.

SecurityCode & DevOps

Outdated checkNot measured4 / 22
GDPR Scanner API

Scan website GDPR compliance: consent, privacy policy, trackers. Score 0-100. x402.

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Go-Live Check

Checks HTTP response headers you paste: 7 security checks with copy-paste fixes. No fetching.

OtherOther

UnreachableNot measured4 / 22
Google Maps Places, Reviews & Local Leads API MCP Server

Real-time Google Maps local business leads, reviews, places & emails MCP. OAuth or API key.

Marketing & SalesCommunication & messaging

Outdated checkNot measured4 / 22
Hive Agent Kyc

KYA agent identity verification and trust scoring for autonomous A2A networks

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22
Hive Cdn

Edge content delivery for autonomous agents — signed manifests, A2A authentication

Developer ToolsCode & DevOps

Outdated checkNot measured4 / 22

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