FaxSeal MCP Server

Send, receive, and verify faxes from AI assistants and agents via the Model Context Protocol.

Tools

| Tool | Description | |---|---| | send_fax | Send a fax from a publicly accessible PDF URL | | send_fax_text | Type content directly — FaxSeal converts it to a PDF and sends | | quote_fax | Estimate pages and credits before sending | | get_fax_status | Check delivery status of a sent fax | | get_credits | Check your FaxSeal credit balance | | list_received_faxes | List faxes in your inbox with OCR text | | verify_fax | Verify cryptographic delivery attestation via Sigstore/Rekor |

Setup

1. Get an API key at faxseal.com/dashboard/api-tokens

2. Add to Claude Code:

claude mcp add faxseal -e FAXSEAL_API_KEY=fsx_your_token -- npx faxseal-mcp

3. Add to Claude Desktop (claude_desktop_config.json):

{
  "mcpServers": {
    "faxseal": {
      "command": "npx",
      "args": ["faxseal-mcp"],
      "env": {
        "FAXSEAL_API_KEY": "fsx_your_token"
      }
    }
  }
}

Usage examples

"Send the referral letter at https://example.com/referral.pdf to +12025551234"

"Check the status of fax job abc123"

"List my received faxes from the last 24 hours"

"Send a fax to +12025551234 with the following text: Dear Dr. Smith, please find attached..."

Pricing

Faxes are billed to your FaxSeal credit balance. Credits start from $0.83/fax. View pricing.

Links

• FaxSeal
• API Docs
• npm package