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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619 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
Outdated check327 ms12 / 22
Outdated check346 ms12 / 22
io.github.Christebob/meta-stamp-pockets

Attribution and settlement infrastructure for AI agent content access over HTTP 402 and MCP.

Developer ToolsCode & DevOps

Outdated check541 ms12 / 22
CEA Digital B2A Fulfillment Factory

High-speed institutional API data gateway for SEC EDGAR, OSV CVE, FDIC, USGS, NPI, and GCP Catalog.

SecurityMonitoring & observability

Outdated check654 ms12 / 22
Outdated check34 ms11 / 22
FernTool Network Tools

24 free tools: IP/VPN lookup, WHOIS, DNS, SPF/DMARC, site up/down, redirects, time zones. No key.

Developer ToolsData access / search

Outdated check65 ms11 / 22
Mat Web & Data Toolkit (x402, Cloudflare)

x402 web/data toolkit: tools, US$5 lead pack, free flapjax_check, paid Nostr relay

Finance & CryptoPayments & trading

Outdated check91 ms11 / 22
Helena Good: Scientific Infrastructure Sponsorship

Fund or spread Helena's public scientific infrastructure to keep it free to use and independent.

Developer ToolsCode & DevOps

Outdated check98 ms11 / 22
io.github.DataLeadsPRO/domain-intelligence

Domain overviews for security and sales: registration, infrastructure, and risk signals.

Developer ToolsCode & DevOps

Outdated check108 ms11 / 22
com.googleapis.container/mcp

Provides read access to your GKE and Kubernetes resources.

Developer ToolsCode & DevOps

Outdated check111 ms11 / 22
falcon.sol agents

Solana agent tools, x402 USDC pay-per-call (Cloudflare host).

Finance & CryptoPayments & trading

Outdated check120 ms11 / 22
com.googleapis.monitoring/mcp

Gain visibility into the performance, availability, and health of your apps and infrastructure.

OtherMonitoring & observability

Outdated check169 ms11 / 22
aptu.dev

Machine-payable API infrastructure for autonomous agents. Per-call x402 settlement in USDC.

Finance & CryptoPayments & trading

Outdated check177 ms11 / 22
com.robtex/mcp

DNS, IP, AS, domain reputation, and Lightning Network intelligence (44 tools)

Developer ToolsCode & DevOps

Outdated check226 ms11 / 22
com.jojapi/cloudflare-solver

Cloudflare Solver: Scraping API designed to bypass Cloudflare protection.

OtherOther

Outdated check247 ms11 / 22
com.modmillennialdesigns/modmillennialdesigns

AI-native commerce infrastructure for modmillennialdesigns.

OtherOther

Outdated check312 ms11 / 22
com.jojapi/bypass-cloudflare-api

Bypass Cloudflare API: A powerful scraping API designed to bypass Cloudflare protection.

OtherOther

Outdated check339 ms11 / 22
Filter Solutions Ltd Public Technical Content

Read-only MCP access to Filter Solutions Ltd public filtration and oil monitoring content.

Developer ToolsMonitoring & observability

Outdated check357 ms11 / 22
Relaystation

Pay-per-call agent infrastructure: file storage & handoff, compute tools, messaging, e-sign, KYC.

Developer ToolsCommunication & messaging

Outdated check566 ms11 / 22
Crypto, web, finance and app data tools

185 tools: company jobs, token/wallet/company/website reports, crypto, EVM, SEC, FRED, weather, DNS.

Finance & CryptoPayments & trading

Outdated check603 ms11 / 22
Atlas Data Exchange

Infrastructure and hazard intelligence with provenance, spatial confidence and quality contracts.

LegalKnowledge & memory

Outdated check756 ms11 / 22
Scrutica

AI compute infrastructure intelligence: facilities, supply chains, sovereign AI, export controls.

Developer ToolsCode & DevOps

Outdated check1276 ms11 / 22
Joy Trust Network

Trust infrastructure for AI agents. Portable reputation (JTS 0-5), agent discovery, vouching.

Developer ToolsCode & DevOps

Outdated check1360 ms11 / 22
DirFast

DNS, TLS, HTTP and SEO checks, plus stateful change watches that diff a page over time.

Marketing & SalesData access / search

Outdated check1545 ms11 / 22

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