account_status
Show your ProbeOps account status: subscription tier, diagnostic quota (minute/hour/day/month), proxy token quota, and active proxy token details. Use this to check remaining quota before running multiple tools.
LABSCO SUMMARY
Multi-region by default is the whole argument: 'it works for me' and 'it is down' are the same observation from one location.
Most network diagnostics run from wherever you happen to be, which makes the two most common real problems — a regional outage and a partially propagated DNS change — invisible. Running every check from several regions turns those into the default result rather than something you go looking for, and is_it_down having a 'partially available' state is that idea made explicit. The DNS coverage deserves note too: separate tools for CAA and for TXT showing SPF, DKIM and DMARC means the email-deliverability and certificate-issuance questions are answerable without knowing which record type to ask for. tcp_ping alongside ICMP ping is the practical touch for anywhere that drops ICMP and looks dead as a result.
What it is
A network diagnostics client whose distinguishing feature is that every check runs from several global regions at once, covering DNS, TLS, reachability, latency and port state.
What you get
- DNS split by record type rather than one generic lookup: A, MX with priorities, TXT showing SPF, DKIM and DMARC, NS, CNAME, CAA, and reverse PTR from an IP.
- is_it_down reports up, down or partially available — the third state being the one a single-location check cannot see.
- Latency in three forms: ICMP ping with packet loss, a general latency test, and tcp_ping measuring to a specific port, which is what matters when ICMP is filtered.
- traceroute shows the network path from one or more regions, so a route problem can be attributed to a leg rather than to the destination.
- Port checks singly or in bulk, plus banner_grab to see what is actually listening rather than only that something is.
- ssl_check returns certificate state from multiple regions, which catches a mis-deployed certificate on one edge.
- keyword_check looks for a string in a page's raw HTML from each region — the cheapest way to detect a region-specific broken deploy.
- websocket_check and api_health cover the endpoints an HTTP check does not, and whois returns registration detail.
- account_status reports the subscription tier and remaining diagnostic quota.
Requirements
A ProbeOps API key for full access — get_api_key returns the setup instructions, and account_status reports the tier and quota you are working against.
Setup effort
One command — npx -y @probeops/mcp-server
USE CASES
01
Working out whether it is down or just down for you
Check from multiple regions and read whether it is up, down or partially available — the third answer being the one a local check cannot give.
02
Chasing a DNS change that has not taken everywhere
Look up the record from each region and compare, rather than trusting one resolver's cache.
03
Debugging email that is being rejected
Read the TXT records for SPF, DKIM and DMARC, and check the MX records and their priorities.
04
Checking a certificate is deployed everywhere it should be
Verify the certificate from several regions and read the CAA records that govern who may issue one.
05
Finding out what is actually listening
Check the ports singly or in bulk, measure TCP latency to the one that matters, and grab the banner to see what is answering.
06
Confirming a deploy landed in every region
Look for a known string in the page's raw HTML from each region, and check the API and WebSocket endpoints the HTML check does not cover.
22 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
api_health
Check API endpoint health from multiple global regions. Sends an HTTP request and reports status code, response time, and availability.
banner_grab
Grab the service banner from a specific port on a target from multiple global regions. Identifies service type and version.
caa_lookup
Look up CAA (Certificate Authority Authorization) DNS records for a domain. Shows which certificate authorities are authorized to issue SSL/TLS certificates.
cname_lookup
Look up CNAME (Canonical Name) records for a domain. Shows DNS aliases. Useful for verifying CDN configuration and subdomain routing.
dns_lookup
Look up DNS records for a domain from multiple global regions. Supports A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, and PTR record types. Useful for checking DNS propagation across regions.
get_api_key
Get instructions to set up your ProbeOps API key for full access to all 21 tools and 6 global regions.
is_it_down
Check if a website is up, down, or partially available from multiple global regions. Returns HTTP status and response time per region.
keyword_check
Check if a keyword exists in a web page's raw HTML source from multiple global regions. Searches raw HTML — does not execute JavaScript, so content rendered client-side (SPAs, dynamic widgets) may not be detected. Useful for verifying static content delivery and geo-specific content.
latency_test
Measure network latency (ping) to a target from multiple global regions. Returns per-region latency plus average, min, and max.
mx_lookup
Look up MX (Mail Exchange) records for a domain. Shows mail servers and priorities. Useful for verifying email configuration and troubleshooting email delivery.
nmap_port_check
Check if multiple ports are open or closed on a target from multiple global regions using nmap. Checks specified ports (not a full scan).
ns_lookup
Look up NS (Nameserver) records for a domain. Shows authoritative DNS servers. Useful for verifying DNS delegation and nameserver configuration.
ping
ICMP ping a target from multiple global regions. Returns packet loss and round-trip times. Useful for basic reachability and latency testing.
port_check
Check if a specific port is open, closed, or filtered on a target from multiple global regions. Useful for verifying firewall rules and service availability.
reverse_dns_lookup
Perform reverse DNS (PTR) lookup for an IP address. Finds the hostname associated with an IP. Essential for email deliverability verification and server identification.
ssl_check
Check SSL/TLS certificate for a domain from multiple global regions. Returns certificate details (validity, expiry, issuer, TLS version, SANs) and checks consistency across regions.
tcp_ping
Measure TCP-level latency to a specific port on a target from multiple global regions. More reliable than ICMP ping for hosts that block ICMP.
traceroute
Trace the network path to a target from one or more global regions. Shows each hop with latency. Supports TCP, UDP, and ICMP protocols.
txt_lookup
Look up TXT records for a domain. Shows SPF, DKIM, DMARC, domain verification, and other TXT records. Essential for email authentication and domain ownership verification.
websocket_check
Check WebSocket endpoint health and connectivity from multiple global regions. Verifies that a WebSocket server is accepting connections.
whois
Look up WHOIS registration information for a domain. Shows registrar, creation/expiry dates, nameservers, and registrant info.
BEFORE YOU INSTALL
What to know first
Tools you get
22 tools when we connected; the project documents 24. PROBEOPS_API_KEY decides the set: demo mode offers 11 diagnostic tools, and the geo-proxy pair get_geo_proxy and geo_browse needs a key.
Requires
- npx on PATH
- Node.js >= 18.0.0
Where it runs
All 5 documented clients run the server on your machine.
INSTALLATION
Connect your client
Server setup
TERMINAL
npx -y @probeops/mcp-serverMCP Clients
Claude Code
CLAUDE CODE · TERMINAL
claude mcp add probeops -- npx -y @probeops/mcp-serverCodex
CODEX · TERMINAL
codex mcp add probeops -- npx -y @probeops/mcp-serverCursor, Windsurf, Cline
JSON
{
"mcpServers": {
"probeops": {
"command": "npx",
"args": [
"-y",
"@probeops/mcp-server"
]
}
}
}
