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Look up the autonomous system (ASN) for a public IP address, or details for an ASN such as AS15169: name, country, announced prefixes and address counts.
IP address or ASN (8.8.8.8 or AS13335)
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http httpfy https://httpfy.io/mcp
Look up the autonomous system (ASN) for a public IP address, or details for an ASN such as AS15169: name, country, announced prefixes and address counts.
| Argument | Type | Description |
|---|---|---|
| query* | string | IP address or ASN (8.8.8.8 or AS13335) |
{
"type": "object",
"required": [
"query"
],
"properties": {
"query": {
"type": "string",
"description": "IP address or ASN (8.8.8.8 or AS13335)"
}
},
"additionalProperties": false
}Check the BIMI record of a domain, whether DMARC meets BIMI requirements, and whether the SVG logo and certificate URLs are reachable and well formed.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (example.com) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (example.com)"
}
},
"additionalProperties": false
}Find the CAA records that apply to a domain (climbing to parent domains per RFC 8659) and list which certificate authorities may issue certificates.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain or hostname (www.example.com) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain or hostname (www.example.com)"
}
},
"additionalProperties": false
}List certificates logged in Certificate Transparency for a domain (via crt.sh): issuer, validity window and names, with a summary by issuer.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (example.com) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (example.com)"
}
},
"additionalProperties": false
}Check DKIM public keys for a domain. With a selector it checks that selector; without one it probes common selectors. Reports key type and RSA key length and flags weak or revoked keys.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (example.com) |
| selector* | string | Selector (optional, blank = try common ones) (google) |
{
"type": "object",
"required": [
"domain",
"selector"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (example.com)"
},
"selector": {
"type": "string",
"description": "Selector (optional, blank = try common ones) (google)"
}
},
"additionalProperties": false
}Find and explain the DMARC record of a domain (policy, pct, rua/ruf, alignment) and flag weaknesses such as p=none or missing external report authorization.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (example.com) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (example.com)"
}
},
"additionalProperties": false
}Look up DNS records of one type (A, AAAA, CNAME, MX, NS, SOA, TXT, SRV) for a domain using public resolvers.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (Enter domain) |
| record_type | string | Select Record Type. Default: A |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (Enter domain)"
},
"record_type": {
"enum": [
"A",
"AAAA",
"CNAME",
"MX",
"NS",
"SOA",
"TXT",
"SRV"
],
"type": "string",
"default": "A",
"description": "Select Record Type. Default: A"
}
},
"additionalProperties": false
}Query a domain on about 40 public resolvers in different regions and report which ones return which answers, to see whether a DNS change has propagated.
| Argument | Type | Description |
|---|---|---|
| query_type | string | Check Type. Default: Nameserver |
| domain_name* | string | Domain Name (Enter Domain Name) |
{
"type": "object",
"required": [
"domain_name"
],
"properties": {
"query_type": {
"enum": [
"Nameserver",
"IP"
],
"type": "string",
"default": "Nameserver",
"description": "Check Type. Default: Nameserver"
},
"domain_name": {
"type": "string",
"description": "Domain Name (Enter Domain Name)"
}
},
"additionalProperties": false
}Full DNS report for a domain: delegation from the root, every authoritative name server checked individually (reachability, recursion, TCP, consistency), SOA values, MX records and their reverse DNS, SPF, DMARC, DKIM and DNSSEC.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (Enter domain) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (Enter domain)"
}
},
"additionalProperties": false
}Validate the DNSSEC chain of trust for a domain from the root down (DS, DNSKEY, RRSIG) and report each zone as secure, insecure or broken.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (Enter domain to inspect) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (Enter domain to inspect)"
}
},
"additionalProperties": false
}Registration and expiry dates of a domain, with the time remaining before it expires.
| Argument | Type | Description |
|---|---|---|
| domain_name* | string | Domain Name (Enter Domain Name) |
{
"type": "object",
"required": [
"domain_name"
],
"properties": {
"domain_name": {
"type": "string",
"description": "Domain Name (Enter Domain Name)"
}
},
"additionalProperties": false
}Grade a domain A to F across 11 checks (name servers, SOA, DNSSEC, MX, SPF, DMARC, CAA, HTTPS certificate, HTTP to HTTPS redirect, HSTS, IPv6), with a reason and fix for each failed check.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (example.com) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (example.com)"
}
},
"additionalProperties": false
}WHOIS registration data for a domain: registrar, dates, status and name servers (personal contact data is redacted by registries).
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (Enter domain) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (Enter domain)"
}
},
"additionalProperties": false
}Check whether a public IPv4 address is listed on common DNS-based blocklists such as Spamhaus, Barracuda and SpamCop.
| Argument | Type | Description |
|---|---|---|
| ip_address* | string | IP Address (Enter IP Address) |
{
"type": "object",
"required": [
"ip_address"
],
"properties": {
"ip_address": {
"type": "string",
"description": "IP Address (Enter IP Address)"
}
},
"additionalProperties": false
}WHOIS / registry data for a public IPv4 address: ASN, network range, owner organisation and registry.
| Argument | Type | Description |
|---|---|---|
| ip_address* | string | IP Address (Enter IP address) |
{
"type": "object",
"required": [
"ip_address"
],
"properties": {
"ip_address": {
"type": "string",
"description": "IP Address (Enter IP address)"
}
},
"additionalProperties": false
}Identify the manufacturer registered for a MAC address prefix (OUI) using the IEEE registry.
| Argument | Type | Description |
|---|---|---|
| mac_address* | string | MAC Address (Enter MAC Address) |
{
"type": "object",
"required": [
"mac_address"
],
"properties": {
"mac_address": {
"type": "string",
"description": "MAC Address (Enter MAC Address)"
}
},
"additionalProperties": false
}Check MTA-STS (TXT record and the HTTPS policy file, mode and MX patterns) and the TLS-RPT reporting record for a domain.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (example.com) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (example.com)"
}
},
"additionalProperties": false
}List the mail exchanger (MX) records of a domain with their preferences.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (Enter domain) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (Enter domain)"
}
},
"additionalProperties": false
}Ping a public host from httpfy servers (4 ICMP echo requests) and report packet loss and round-trip times. Useful to test reachability from outside your own network.
| Argument | Type | Description |
|---|---|---|
| host* | string | Host (Enter host or IP) |
{
"type": "object",
"required": [
"host"
],
"properties": {
"host": {
"type": "string",
"description": "Host (Enter host or IP)"
}
},
"additionalProperties": false
}Check whether one TCP port on a public host is open, closed or filtered when tested from httpfy servers on the internet.
| Argument | Type | Description |
|---|---|---|
| host* | string | Host (example.com or 203.0.113.10) |
| port* | string | Port (443) |
{
"type": "object",
"required": [
"host",
"port"
],
"properties": {
"host": {
"type": "string",
"description": "Host (example.com or 203.0.113.10)"
},
"port": {
"type": "string",
"description": "Port (443)"
}
},
"additionalProperties": false
}Fetch the SPF record of a domain from its authoritative name server and list its mechanisms (ip4, ip6, include, redirect, all).
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (Enter domain) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (Enter domain)"
}
},
"additionalProperties": false
}Validate the SPF record of a domain: syntax, single-record rule, DNS lookup count (limit 10), void lookups, includes and the all mechanism.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (Enter domain) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (Enter domain)"
}
},
"additionalProperties": false
}Connect to a domain on port 443 and report the certificate chain: subject, issuer, validity dates, days remaining, SANs and chain details.
| Argument | Type | Description |
|---|---|---|
| domain* | string | Domain (Enter domain) |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain (Enter domain)"
}
},
"additionalProperties": false
}Traceroute to a public host from httpfy servers (up to 10 hops). Internal hops of httpfy's own network are masked.
| Argument | Type | Description |
|---|---|---|
| host* | string | Host (Enter host or IP) |
{
"type": "object",
"required": [
"host"
],
"properties": {
"host": {
"type": "string",
"description": "Host (Enter host or IP)"
}
},
"additionalProperties": false
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 11, 2026.