How to Use the WhoisXML MCP in Vercel AI SDK

Q: What kind of information does WhoisXML provide regarding domain ownership?

It provides both raw WHOIS records and parsed data via the getwhoisrecord tool, letting you see who owns a domain and when it was registered.

See domain intelligence, IP data, and email verification appear in real time using Vercel AI SDK.

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Connect WhoisXML MCP to Vercel AI SDK

Create your Vinkius account to connect WhoisXML to Vercel AI SDK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup WhoisXML with Vercel AI SDK

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Real-Time Domain Availability Checks for the Vercel AI SDK

Need to know if a domain is free? You call `check_domain_availability`, and your user sees the result stream right into the UI. It's instant feedback, which looks way better than waiting on some loading spinner. This makes building interactive tools simple. The AI client uses the tool data to update the page live, giving the end-user a polished experience.

Gathering Core Data with the MCP Server

The `get_whois_record` tool pulls full WHOIS and raw domain details. You can pair this up with `get_ip_geolocation` to map an IP address's location while pulling historical ownership data. This combo lets your agent build out a complete data profile for any given internet asset, all streamed right into the front end.

Client-Side Email Validation with the MCP Server

Before letting a user submit an email address, use `verify_email`. This confirms if it's syntactically valid and likely exists. The result streams back immediately after the check. This means your UI can give instant feedback to the user—either 'Looks good' or 'Bad format.' No waiting for a full page refresh.

Setup guide

Set up WhoisXML MCP in Vercel AI SDK

Prerequisites

Node.js 18+ and a TypeScript project
ai + @modelcontextprotocol/sdk packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies

Run npm install ai @modelcontextprotocol/sdk plus your preferred model provider (e.g. @ai-sdk/openai).
2

Create the Streamable HTTP transport

Use StreamableHTTPClientTransport with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and use tools

Call mcpClient.tools() to auto-discover all WhoisXML tools. Pass them directly to generateText() or streamText() — no manual schema definitions needed.
4

Works with any model provider

Swap openai("gpt-4o") for any AI SDK provider — Anthropic, Google, Mistral. The MCP tools work identically across all supported models.

index.ts

import { experimental_createMCPClient as createMCPClient } from "ai";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";

const transport = new StreamableHTTPClientTransport(
  new URL("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
);

const mcpClient = await createMCPClient({ transport });
const tools = await mcpClient.tools();

const { text } = await generateText({
  model: openai("gpt-4o"),
  tools,
  prompt: "List recent WhoisXML transactions",
});

console.log(text);
await mcpClient.close();

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by WhoisXML API. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about WhoisXML MCP in Vercel AI SDK

The MCP tool results stream directly into the UI. This means when your agent calls a function like `get_whois_record`, the raw data appears on the screen in real-time, making the process feel incredibly fast for the end user.

This server touches domain records, IP geolocation data, and email addresses. Your AI client accesses this by calling specific tools like `verify_email` or `get_ip_geolocation`, streaming the results back to your component.

Yes. You can sequence multiple tool calls—for instance, checking domain availability followed by running `get_whois_record`—and stream the results of each step to build a comprehensive report in your user interface.

It provides structured JSON output for all tools. Whether you use `get_whois_record` or check availability, the response is clean, typed data that's ready to drop right into your React or Next.js component.

It provides both raw WHOIS records and parsed data via the `get_whois_record` tool, letting you see who owns a domain and when it was registered.

Use it with your favorite AI tools

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