How to Use the ContactOut MCP in Claude

Find verified emails and phone numbers directly inside Claude Desktop to build clean sales lists without leaving your chat.

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Connect ContactOut MCP to Claude Desktop

Create your Vinkius account to connect ContactOut to Claude Desktop 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 ContactOut with Claude Desktop

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Pull B2B contact info right into Claude Desktop

Your agent runs `find_email_by_linkedin` and `find_linkedin_by_email` directly inside your conversation to turn a plain LinkedIn URL into a direct line of communication. You get clean, verified personal emails and work phone numbers without manual scraping. Claude Desktop handles the API requests behind the scenes, so you can focus on writing outreach messages that actually get replies.

Build targeted lead lists with intelligent search

Your agent runs `search_people` and `search_companies` to filter prospects by industry, job title, or company size based on your natural language prompts. Finding the right buyers shouldn't take all afternoon with this MCP tool. Once you find the right targets, the agent triggers `enrich_contact` or `enrich_company` to fill in the blanks. You get a complete profile with verified contact details ready for your next campaign.

Monitor your lookup limits in real time

This server runs `get_api_usage` so your agent can check your remaining credits before running a massive batch of lookups. It keeps your prospecting predictable. Your agent checks the numbers first, ensuring you always know exactly how many queries you have left in your billing cycle.

Setup guide

Set up ContactOut MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The ContactOut MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the ContactOut MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under contactout-mcp.

json

{
  "mcpServers": {
    "contactout-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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 ContactOut. 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.

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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 ContactOut MCP in Claude Desktop

Open your local config and add the MCP server details to your settings. Once you save the file and restart your Claude Desktop app, the new tools will show up under the hammer icon in your chat window.

Yes, you can find personal emails directly in your chat. Your agent uses the `find_email_by_linkedin` tool to match LinkedIn profiles with verified personal addresses.

Yes, you can search and filter companies by size and industry. The agent calls the `search_companies` tool to pull matching organizations right into your active chat window.

The tool returns an empty payload or an error indicating no match was found. Your agent will read this response and suggest alternative search terms or tell you to double-check the inputs.

Your ContactOut API key is kept locally on your machine or inside the secure Vinkius MCP host, never exposed to public LLMs. The server only transmits the specific email or LinkedIn URL you query, and no lookup data is permanently stored on the proxy server.

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