FaxSeal README

The full upstream README, mirrored for reference. Install config, tool schemas, adoption signals and our own overview live on the FaxSeal listing page.

FaxSeal MCP Server

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

Tools

ToolDescription
send_faxSend a fax from a publicly accessible PDF URL
send_fax_textType content directly — FaxSeal converts it to a PDF and sends
quote_faxEstimate pages and credits before sending
get_fax_statusCheck delivery status of a sent fax
get_creditsCheck your FaxSeal credit balance
list_received_faxesList faxes in your inbox with OCR text
verify_faxVerify cryptographic delivery attestation via Sigstore/Rekor

Setup

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

2. Add to Claude Code:

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

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

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