How to Use the WhoisXML MCP in Mastra AI

Q: What is the best way to use WhoisXML for data validation with Mastra AI?

You should wrap the email check (verifyemail) in a conditional step. If it returns 'invalid,' you can route the process to an admin notification tool instead of failing the whole workflow.

Build complex, resilient workflows handling WhoisXML data with Mastra AI.

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Create your Vinkius account to connect WhoisXML to Mastra AI 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 Mastra AI

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Perplexity

Multi-Step Data Collection Workflows in the Mastra AI

You build a sequence of actions that need to run. For example, first call `get_ip_geolocation` for an IP address, then use that location data to check domain availability with `check_domain_availability`. Mastra AI handles this flow automatically. If one step fails, the workflow engine doesn't crash; it moves on or retries based on your defined logic.

Conditional Logic Based on WhoisXML Output

Need to check a domain? You can set up conditional branching. If `get_whois_record` shows the ownership is private, then trigger an alert workflow. Otherwise, proceed with email verification using `verify_email`. This level of control means your automation handles edge cases gracefully and requires zero human babysitting.

Automated Data Validation and MCP Server Use

The system can validate data types across multiple tools. If the input for `get_whois_record` is malformed, Mastra AI catches it immediately instead of failing silently. It guarantees that your agent only processes reliable information. This makes running complex checks—like verifying an email and checking IP location—dependable, even when things go wrong.

Setup guide

Set up WhoisXML MCP in Mastra AI

Prerequisites

Node.js 18+ and a TypeScript project
@mastra/mcp + @mastra/core packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run npm install @mastra/mcp @mastra/core plus your preferred model provider (e.g. @ai-sdk/openai).
2

Configure the MCPClient
Create an MCPClient with your Vinkius endpoint as a URL object. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and inject tools
Call mcpClient.listTools() and spread the result into your agent's tools object. All WhoisXML tools become native Mastra tools.
4

Run with any model
Swap openai("gpt-4o") for any AI SDK-compatible provider. Call agent.generate() and the agent routes tool calls through MCP automatically.

agent.ts

import { MCPClient } from "@mastra/mcp";
import { Agent } from "@mastra/core/agent";
import { openai } from "@ai-sdk/openai";

const mcpClient = new MCPClient({
  id: "whoisxml-mcp-client",
  servers: {
    "whoisxml-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

const agent = new Agent({
  name: "WhoisXML Agent",
  model: openai("gpt-4o"),
  instructions: "You have access to WhoisXML tools.",
  tools: {
    ...(await mcpClient.listTools()),
  },
});

const result = await agent.generate(
  "List recent WhoisXML transactions"
);
console.log(result.text);

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Common questions about WhoisXML MCP in Mastra AI

Mastra AI uses exponential backoff and automatic retries. If the `get_whois_record` call fails due to a temporary network hiccup, it will automatically re-run the check until successful or until you hit your defined failure threshold.

The server provides domain records, IP geolocation, and email validation. You integrate this by defining a sequence: check the IP location first, then use that context to run other tools in your complex workflow.

Absolutely. You can build multi-step processes that require gathering domain intelligence and running checks like `check_domain_availability`. The entire process runs as a single, orchestrated workflow.

You should wrap the email check (`verify_email`) in a conditional step. If it returns 'invalid,' you can route the process to an admin notification tool instead of failing the whole workflow.

The tools expose strings (domain names, IPs) and structured records (WHOIS/geolocation). These typed outputs allow you to use them directly in conditional logic across your workflow.

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