How to Use the Hunter MCP in Mastra AI

Q: Can I use Hunter to list recipients in Mastra AI?

Yes, listrecipients lets your agent iterate through your campaign contact lists. This is useful for auditing your outreach status.

Build complex outreach workflows in Mastra AI using Hunter to find and verify prospects automatically.

See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

MCP Servers - Free for Subscribers

Connect Hunter MCP to Mastra AI

Create your Vinkius account to connect Hunter 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.

GDPR Free for Subscribers

Setup Hunter with Mastra AI

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Automated lead enrichment for Mastra AI

Your agent uses `email_finder` to locate contact info during a multi-step workflow. If the search comes up empty, you can program a fallback branch to skip that lead. This automates the research phase of your sales cycle. You define the logic once, and the agent handles the discovery and filtering for every campaign.

Manage campaigns via Mastra AI MCP Server

Your agent interacts with `list_campaigns` and `get_campaign` to monitor performance. It can check status updates and trigger actions based on current metrics. This gives your workflow visibility into your outreach results. You stop guessing which campaigns are active and let the agent report back on progress.

Conditional verification in Mastra AI

You can set up your agent to run `email_verifier` only after finding a match. If the verification fails, the agent moves to the next prospect without human intervention. This protects your domain reputation by ensuring only valid addresses enter your outreach pipe. It keeps your bounce rates low and your delivery high.

Setup guide

Set up Hunter 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 Hunter 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: "hunter-mcp-client",
  servers: {
    "hunter-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

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

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

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Hunter.io. 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.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

Connect Hunter now

Real-time monitoring

Live

visibility into every interaction

Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

lower AI costs

Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

Single dashboard

One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about Hunter MCP in Mastra AI

You initialize the MCP client in your agent definition and spread the tools into the agent configuration. It auto-detects the server and handles the connection.

You can configure your agent to handle failures if the server is unreachable. Mastra AI's built-in engine manages the backoff logic.

Yes, `list_recipients` lets your agent iterate through your campaign contact lists. This is useful for auditing your outreach status.

Enable tool approval in your agent settings. This forces the agent to ask for your permission before it executes any action.

All your lead data is processed through an isolated environment. The server only touches the specific names and domains you request, and it keeps no persistent logs of your records.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

Google ADK sdk-python

Pydantic AI sdk-python

Vercel AI SDK sdk-typescript