Fax.Plus MCP Setup for Claude

Before you start

• Use an active Fax.Plus Basic plan or higher. The Free plan is not supported.
• Your Fax.Plus account must not have Advanced Security Controls enabled, including HIPAA or PHIPA configurations. Keep any security controls your organization requires in place.
• Use Claude on the web or Claude Desktop with permission to add or use a custom connector. In a managed workspace, an authorized owner or administrator may need to add it first.

This setup uses OAuth, so you do not need to create a Personal Access Token. Check the Fax.Plus MCP requirements.

Connect Fax.Plus MCP to Claude

Menu labels may differ: Claude's current guide also places Connectors under Customize.

1. 1

   Add a custom connector

   Open your profile menu and select Settings → Connectors. Click Add → Add custom connector. If your organization already provides Fax.Plus, select the existing connector and go directly to sign-in.

   What you should seeThe custom connector form, or the existing connector supplied by your organization.

2. 2

   Enter the name and server URL

   Copy the name and the address below into the name and remote MCP server URL fields, then click Continue.

   Fax.Plus MCP server name

   FaxPlus

   Copy name

   Fax.Plus MCP server URL

   https://mcp.fax.plus/mcp

   Copy URL

   What you should seeThe connector’s authentication settings.

3. 3

   Choose OAuth sign-in

   Under Authentication, select Sign in now. Under OAuth client, select Register automatically. Review the settings and click Add. Follow any different configuration supplied by your organization.

   What you should seeFaxPlus in the connector list with a Connect option.

4. 4

   Connect your Fax.Plus account

   Select Connect. Sign in on the Fax.Plus page using the account you want Claude to access. Review the requested permissions before approving them, then return to Claude.

   What you should seeThe connected FaxPlus connector and its available tools.

Choose how tools can run

Review the connector’s tool permissions. The available choices are:

Read-only lookups, such as listing your numbers or faxes, carry little risk. Keep every tool that sends faxes or changes or deletes records, for example sending or resending a fax, or deleting a fax or a contact, on Needs approval so that nothing happens without your confirmation. Block tools you do not need.

If you get stuck

• You cannot add the connector: check Claude's connector availability and your organization's permissions.
• Fax.Plus rejects the account: confirm the paid plan and Advanced Security Controls requirements above.
• Claude cannot find the tools: confirm that FaxPlus is connected and enabled in the conversation.
• Authorization or redirect errors persist: contact Alohi Support with the client name and error. Do not include credentials.