Whois

Live 20 Actions

Whois Integration for AI Agents

Connect your AI agent to 20 Whois actions via MCP, A2A, or SDK, with agent authentication, tool-calling execution, and security built-in.

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Whois AI Agent Actions

20 production-ready actions for your agent to do more on Whois.

Read the Whois docs

20 Actions

Get Account Balance - Get the remaining API credits for each subscribed product.

WHOIS Lookup - Get the WHOIS record for a domain or IP.

WHOIS History - Get the historical WHOIS records for a domain.

DNS Lookup - Get DNS records for a domain.

Check Domain Availability - Check whether a domain is available for registration.

Subdomains Lookup - Discover subdomains for a domain.

Domain Reputation - Get the reputation score for a domain.

SSL Certificates Lookup - Get the SSL/TLS certificate chain for a domain.

Website Categorization - Get the content categories for a domain.

Verify Email - Verify an email address.

IP Geolocation - Get geolocation and network data for an IP address.

IP Netblocks Lookup - Get the netblock (IP range) records that an IP, ASN, or organization belongs to.

Reverse WHOIS Search - Find domains matching WHOIS record search terms.

Reverse NS Lookup - Find domains served by a name server.

Reverse MX Lookup - Find domains using a mail server.

Reverse IP Lookup - Find domains hosted on an IP address.

Brand Alert - Find newly registered or dropped domains matching brand terms.

Registrant Alert - Find newly registered or dropped domains matching registrant terms.

Capture Website Screenshot - Capture a screenshot of a web page.

Threat Intelligence Lookup - Look up threat intelligence for an indicator of compromise.

Do More, Build Less

Integration Infrastructure for Whois AI Agents

Multiple Interfaces

Access integrations via API, AI SDKs, MCP & A2A.

Whois MCP server

Managed Authentication

Pre-built authentication UI.

Agent auth

Falcon Engine

Every Whois action runs on Falcon.

Agent Execution Engine

StackOne Defender

88.7% prompt injection detection.

Prompt injection defense

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"What impressed us most about StackOne is its ambition and clarity. They're creating infrastructure that modern software and the entire AI agent ecosystem can rely on. The depth of secure integrations, the pace of delivery, and the team's foresight into AI's future uniquely position StackOne to redefine this category."

Luna Schmid, Partner at GV

"We've been impressed by how quickly and deeply StackOne integrates with complex enterprise systems -- and now, with their focus on agent-to-agent interoperability, they're unlocking even more powerful use cases for customers. StackOne delivers all of the above in a universal layer -- without compromise."