How to Use the Fax.Plus MCP in Windsurf

Q: How do I configure Fax.Plus in Windsurf?

Open your mcpconfig.json file in Windsurf or go to Settings, then Cascade, and add the server under the mcpServers block. Once you click Refresh in the MCP panel, Cascade auto-discovers all eight tools and starts using them.

Q: How does Windsurf handle failed Fax.Plus transmissions?

Cascade reads the outbox status using listoutboxjobs and can trigger canceloutboxjob if it detects a hung transmission. It then reports the failure details directly in your chat sidebar.

Let Windsurf autonomously manage, send, and track your Fax.Plus transmissions directly inside your development workflow.

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Connect Fax.Plus MCP to Windsurf

Create your Vinkius account to connect Fax.Plus to Windsurf 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 Windsurf

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Autonomous Fax Pipelines in Windsurf

Cascade can instantly coordinate a multi-step faxing workflow without making you trigger each step manually. Tell it to send a document, and it checks your account context using `get_account_info`, finds your active numbers with `list_fax_numbers`, and fires off the transmission via `send_fax`. If a transmission gets stuck, the agent doesn't just sit there waiting for your input. It actively monitors the queue using `list_outbox_jobs` and kills hung processes with `cancel_outbox_job` before they waste your API credits.

Smart Number Provisioning and Expansion

When your application runs out of inbound lines, Windsurf handles the expansion logic on its own. The agent uses `search_available_numbers` to find clean lines in your target area code and presents them directly in your editor. Once you approve, it updates your environment configuration files and verifies the newly assigned lines using `list_fax_numbers` so your routing code works instantly.

Automated Document Audits via this MCP Server

You can ask Cascade to run an audit on yesterday's failed deliveries. It will scan your history using `list_faxes`, isolate the errors, and pull the full metadata for each failure with `get_fax_details`. This MCP Server integration allows Windsurf to write a local markdown report detailing the delivery status of every outbound document, saving you from digging through web dashboards.

Setup guide

Set up Fax.Plus MCP in Windsurf

Prerequisites

Windsurf IDE installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Click the Cascade assistant icon in the sidebar, then click the hammer icon (🔨) at the top of the panel. Select "Configure" to open ~/.codeium/windsurf/mcp_config.json.
2

Add the Fax.Plus MCP

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

Refresh MCPs

Go back to the hammer icon (🔨) in Cascade and click "Refresh". Windsurf will detect the new server. No full restart is needed — the connection is hot-reloaded.
4

Verify in Cascade

Start a new Cascade conversation and ask something like "Show my Fax.Plus payment history." If connected, Cascade will call the Fax.Plus tools directly. You will see a green dot next to the server name in the MCP panel.

mcp_config.json

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

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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 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.

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Common questions about Fax.Plus MCP in Windsurf

Open your `mcp_config.json` file in Windsurf or go to Settings, then Cascade, and add the server under the `mcpServers` block. Once you click Refresh in the MCP panel, Cascade auto-discovers all eight tools and starts using them.

Yes, that is exactly how Cascade operates. You provide the goal, and it chains `get_account_info` and `send_fax` to complete the task autonomously.

Cascade reads the outbox status using `list_outbox_jobs` and can trigger `cancel_outbox_job` if it detects a hung transmission. It then reports the failure details directly in your chat sidebar.

You can ask Cascade to find numbers in specific area codes. It calls `search_available_numbers` and lists the results directly in your editor pane.

Your actual fax documents and transmission logs never pass through third-party LLM servers. This integration runs locally inside a secure V8 sandbox, communicating directly with the API to fetch metadata via `get_fax_details` without exposing sensitive files.

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