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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1497 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
Action1 MCP by usefulapi

Read endpoints, missing updates, CVE vulnerabilities, installed software and reports in Action1.

SecurityMonitoring & observability

Outdated check775 ms14 / 22
io.github.dario933/grith-mcp

GRITH MCP for persistent citizen identity, private memory, return proof, and city doors.

Developer ToolsCode & DevOps

Outdated check786 ms14 / 22
Compliance Engine

Sanctions screening (OFAC/UK/EU/UN) + PEP + GLEIF entities via Compliance Engine.

Developer ToolsCode & DevOps

Outdated check813 ms14 / 22
Trade Compliance — Custom Entry Review — Kestrel Partners (2eef943e)

Free to compete: testnet faucet funds everything. 12 synthetic custom entry exception cases:…

OtherOther

Responded847 ms14 / 22
Debian Security Advisories — buy per-query in-session (debianwatch)

Debian Security Advisories (DSA). $0.01/query. Be born in one call — free testnet funds.

OtherOther

Responded874 ms14 / 22
RentReboot Apartment Search

NYC rent data and guides; OAuth tools for apartment alerts, saved searches and lottery status.

Developer ToolsCode & DevOps

Outdated check889 ms14 / 22
Rust Crate Security Advisories — buy per-query in-session (rustsecwatch)

Rust crate vulns: CVEs, patched versions. $0.01/query. Be born in one call — free testnet funds.

SecurityMonitoring & observability

Responded910 ms14 / 22
Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session

Ubuntu security: USNs per CVE, patched versions. Be born in one call — free testnet funds.

SecurityMonitoring & observability

Responded936 ms14 / 22
io.github.cyanheads/pentest-mcp-server

Offline methodology engine for authorized penetration testing, CTF, and security research.

SecurityCode & DevOps

Outdated check936 ms14 / 22
ncrypted

One-time, end-to-end encrypted secrets for agents. 0.005 USDC per secret via x402.

Finance & CryptoPayments & trading

Responded948 ms14 / 22
TheRundown Data MCP

Six Product API tools require authentication; protocol metadata discovery is keyless.

Developer ToolsCode & DevOps

Responded999 ms14 / 22
IT Security — Access Change Request Recertify — Alder Court Partners (b578285f)

Free to compete: testnet faucet funds everything. 12 synthetic access change request exception…

LegalKnowledge & memory

Outdated check1051 ms14 / 22
io.github.cyanheads/epa-mcp-server

Search EPA compliance, TRI, Superfund, drinking-water, EJScreen, and AirNow data.

Developer ToolsCode & DevOps

Outdated check1056 ms14 / 22
com.dechonet/mcp

30 security tools for AI agents: phishing links, exposure maps, DNS, SSL, PQC, history, pivots.

Developer ToolsCode & DevOps

Outdated check1082 ms14 / 22
RecipeBee

Discover, preview, and save recipes and meal plans with RecipeBee; private actions require OAuth.

Developer ToolsCode & DevOps

Responded1091 ms14 / 22
CERT-FR Security Advisories — buy per-query in-session (certfrwatch)

CERT-FR (ANSSI) security advisories & alerts: French national CERT vulnerability feed, hourly

SecurityMonitoring & observability

Responded1095 ms14 / 22
Daylily Catalog

Search daylily catalogs and cultivar traits. Manage your grower catalog with scoped OAuth.

Developer ToolsCode & DevOps

Outdated check1096 ms14 / 22
Raziel

MCP server teaching AI agents to implement TideCloak: auth, E2EE, IGA, security analysis

Developer ToolsCode & DevOps

Outdated check1156 ms14 / 22
CVE Security Advisories (NVD High & Critical) — buy per-query in-session (cvewatch)

CVE advisories: high/critical NVD vulns, daily digest. Be born in one call — free testnet funds.

SecurityDatabase

Responded1575 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.pooriaarab/aigovernancetools

Compare AI governance, risk and compliance software.

Developer ToolsCode & DevOps

Outdated check2542 ms14 / 22
Outdated check2826 ms14 / 22
Diogenes Web3, DeFi & 402 Security MCP

Smart contract audit oracles, Solana risk analysis, MEV defense & HTTP 402 verifiers.

Finance & CryptoPayments & trading

Responded143 ms14 / 22
Agent Kiosk — 23-in-1 B2A Intelligence, Action & x402 API

23-in-1 MCP server: EVM tx simulator, funding rate arb, macro radar, swap calldata & security.

Developer ToolsPayments & trading

Responded1058 ms14 / 22

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