How to Use the Fax.Plus MCP in Claude

Q: How do I configure Fax.Plus with my Claude Desktop app?

Open your claudedesktopconfig.json file and add the MCP server details under the mcpServers key. Once you save the file and restart the app, Claude Desktop detects the tools and lets you send faxes immediately.

Q: How do I verify my account balance or status?

Ask your agent to run getaccountinfo. This command returns your current plan limits and identity context directly inside the chat window.

Send and receive secure faxes directly from your local Claude Desktop app or claude.ai workspace using simple chat commands.

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Connect Fax.Plus MCP to Claude Desktop

Create your Vinkius account to connect Fax.Plus 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 Fax.Plus with Claude Desktop

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Send faxes straight from chat

The `send_fax` tool transmits digital documents to any E.164 phone number directly from your local workspace. Claude Desktop reads your local files, processes the recipient info, and hands the transmission over to the API. You don't need to open a browser or log into a separate portal. Just point your agent to a local PDF on your machine and tell it where to send it using this MCP integration.

Track and cancel outgoing jobs in Claude Desktop

The `list_outbox_jobs` tool tracks your active transmissions while `cancel_outbox_job` stops a pending transmission before it hits the phone lines. This MCP Server lets Claude Desktop read these real-time queues so you can monitor progress right inside your conversation. If you realize you sent the wrong attachment, tell your agent to kill the job instantly. This gives you immediate control over outbound documents without refreshing admin dashboards.

Manage your telephony setup with this MCP Server

The `search_available_numbers` tool finds new inbound lines while `list_fax_numbers` retrieves your active numbers and their current status. Claude Desktop displays these options in clean tables so you can claim new numbers on the fly. This setup lets you scale up your communication lines without leaving your terminal or console. Your agent pulls the available inventory directly into your chat, making number provisioning a matter of a single prompt.

Setup guide

Set up Fax.Plus 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 Fax.Plus 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 Fax.Plus 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 faxplus-mcp.

json

{
  "mcpServers": {
    "faxplus-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 Fax.Plus. 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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Common questions about Fax.Plus MCP in Claude Desktop

Open your `claude_desktop_config.json` file and add the MCP server details under the `mcpServers` key. Once you save the file and restart the app, Claude Desktop detects the tools and lets you send faxes immediately.

Yes, you can ask Claude Desktop to check for new messages. The agent runs `list_faxes` to pull your history and uses `get_fax_details` to show you specific transmission details.

No, you run it as an MCP Server via Vinkius, which manages the hosting and execution environment. Claude Desktop connects to the secure hosted endpoint using your unique token, eliminating the need to install local dependencies.

Ask your agent to run `get_account_info`. This command returns your current plan limits and identity context directly inside the chat window.

Your transmission logs and document metadata pass through a sandboxed V8 execution environment. Vinkius never stores the raw files or recipient phone numbers, routing them directly to the end telephony network via encrypted TLS channels.

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