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FaxSeal

Official registry Security

Send, receive, and verify faxes from AI assistants and agents via FaxSeal.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http faxseal 'https://mcp-server-production-8f66.up.railway.app/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "faxseal": {
            "type": "http",
            "url": "https://mcp-server-production-8f66.up.railway.app/mcp"
        }
    }
}
NPM package faxseal-mcp
Claude Code 
claude mcp add faxseal -e 'FAXSEAL_API_KEY=<FAXSEAL_API_KEY>' -- npx -y faxseal-mcp@2.2.0
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "faxseal": {
            "command": "npx",
            "args": [
                "-y",
                "faxseal-mcp@2.2.0"
            ],
            "env": {
                "FAXSEAL_API_KEY": "<FAXSEAL_API_KEY>"
            }
        }
    }
}

Environment variables

  • FAXSEAL_API_KEY Your FaxSeal API key (fsx_...). Generate one at https://faxseal.com/dashboard/api-tokens

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. FaxSeal MCP Server
  2. Tools
  3. Setup
  4. Usage examples
  5. Pricing
  6. Links

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:

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.

Frequently asked questions

What is FaxSeal?

Send, receive, and verify faxes from AI assistants and agents via FaxSeal.

How do I install FaxSeal?

It runs as a remote server. In Claude Code: claude mcp add --transport http faxseal 'https://mcp-server-production-8f66.up.railway.app/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does FaxSeal need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is FaxSeal open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains FaxSeal?

It is published by grichardomi. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.