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

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
ClouDNS MCP by usefulapi

Read DNS zones, records, failover settings and monitoring checks; add TXT records in ClouDNS.

Developer ToolsMonitoring & observability

Outdated check65 ms14 / 22
FluxProof

Evidence-bearing public webpage monitoring with hashes, diffs, signed webhooks, REST, and MCP.

Developer ToolsMonitoring & observability

Responded70 ms14 / 22
Web Extract MCP Server

Page change monitoring, sitemap discovery, prompt-injection screening, clean markdown. Free preview.

Developer ToolsMonitoring & observability

Responded80 ms14 / 22
Exoscale MCP by usefulapi

Inspect Exoscale: instances, volumes, SKS, DNS, IPs, quotas and usage; start, stop, reboot VMs.

Developer ToolsCode & DevOps

Outdated check81 ms14 / 22
x402 Toolbox

62 pay-per-call web, DNS, EVM and data tools. x402 USDC on Base, $0.003-$0.02 per call, no signup.

Developer ToolsPayments & trading

Responded84 ms14 / 22
bunny.net MCP by usefulapi

Inspect pull zones, storage, DNS and video libraries on bunny.net, and purge caches.

MediaAI / LLM tooling

Outdated check130 ms14 / 22
Resistance Tools

MCP tools for TON Sites, TON DNS and TON Storage.

Developer ToolsCode & DevOps

Responded142 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

Responded142 ms14 / 22
Tailscale MCP by usefulapi

Read devices, users, keys, ACLs and DNS for a tailnet; manage devices, routes and auth keys.

Developer ToolsCode & DevOps

Outdated check153 ms14 / 22
Civo MCP by usefulapi

List Civo instances, Kubernetes clusters, networks and DNS; reboot instances, add rules.

Developer ToolsCode & DevOps

Outdated check153 ms14 / 22
HackMyIP — no-key IP intelligence

Free no-key IP intelligence: geolocation, VPN detection, DNS, WHOIS, blacklists, breach checks

Developer ToolsCode & DevOps

Responded208 ms14 / 22
dev.dnsdoctor/dns-doctor

Scan, fix, verify and monitor DNS: SPF, DMARC, DKIM, propagation, health, expiry. Validated fixes.

Developer ToolsCode & DevOps

Outdated check211 ms14 / 22
DNSimple MCP by usefulapi

MCP server for DNSimple — domains, DNS zone records, availability, pricing and contacts.

Developer ToolsCode & DevOps

Outdated check225 ms14 / 22
AgentData — crypto market data with a checkable record

Verifiable crypto signals, recorded history and always-on monitoring for AI agents via x402 on Base.

Finance & CryptoData access / search

Responded267 ms14 / 22
Domain Mail Check

Check a domain's email DNS, whether Gmail and Outlook accept its mail, and its registration.

ProductivityCommunication & messaging

Responded291 ms14 / 22
DaedalMap CIA World Factbook

CIA World Factbook country indicators: infrastructure, energy, demographics, economy, 2002-2026.

OtherOther

Responded424 ms14 / 22
Agent Provider Depot

Dated picks, sourced pricing, and rescue/eval tools across 305 AI agent infrastructure providers.

Developer ToolsCode & DevOps

Responded455 ms14 / 22
io.github.HappyMealSteak/apizone

Real-time status & uptime monitoring for 294 popular APIs — is it down, and how reliable?

Developer ToolsMonitoring & observability

Outdated check481 ms14 / 22
VerifyPulse: email deliverability checks

Daily SPF, DKIM, DMARC and MX monitoring with webhook alerts, plus free sending-domain audits.

Developer ToolsMonitoring & observability

Responded524 ms14 / 22
io.github.karandaid/karandeepsingh-blog

Search and read Karandeep Singh's DevOps and AWS blog: articles and cheatsheets.

Developer ToolsCode & DevOps

Outdated check548 ms14 / 22
AgentDiet Domain OSINT, TLS Certificate & Security Headers Recon

Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade.

Developer ToolsCode & DevOps

Responded581 ms14 / 22
AgentDiet B2A Email Deliverability, MX, SPF & DMARC Verifier

Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMA.

ProductivityCommunication & messaging

Responded588 ms14 / 22
AWS Cloud Service Updates & Announcements — buy per-query (awswhatsnew)

AWS cloud service announcements & updates. $0.01/query. Be born in one call — free testnet funds.

MediaData access / search

Responded732 ms14 / 22
Whisper

One routable IPv6 per AI agent, verifiable from the DNS root. Keyless tools need no signup.

Developer ToolsCode & DevOps

Outdated check830 ms14 / 22

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