Send real faxes to EU institutions: pay per fax via checkout link or prepaid API key.
Connect Remote server
claude mcp add --transport http fax https://www.sendthisfax.com/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"fax": {
"url": "https://www.sendthisfax.com/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"fax": {
"type": "http",
"url": "https://www.sendthisfax.com/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://www.sendthisfax.com/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 4 found in our last check
get_priceGet the price quote in euro cents for sending a fax. Pricing: 5.00 EUR for up to 5 pages, plus 0.50 EUR per extra page, plus VAT based on the payer's billing country (0% VAT outside the EU).
send_faxSubmit an uploaded PDF for faxing. Step 1 (before this tool): upload the PDF over plain HTTP multipart, using any HTTP client you have — shell, JavaScript fetch with FormData, Python, etc.: curl -F "[email protected]" https://www.sendthisfax.com/api/upload fetch("https://www.se…
get_fax_statusGet the current status of a fax. Poll this after send_fax until a terminal state. Fax lifecycle: draft (uploaded, not submitted) -> pending (submitted, awaiting payment) -> sending -> delivered | failed. Payment lifecycle: unpaid -> verifying/open (checkout in progress) -> paid…
check_balanceGet the prepaid credit balance of the API key used to authenticate this MCP connection. Requires a bearer API key (stf_live_...). Buy or top up credits at https://www.sendthisfax.com/en/credits — credits never expire and failed faxes are re-credited automatically.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional: Bearer stf_live_... prepaid API key for autonomous sending (buy at https://www.sendthisfax.com/en/credits). Omit for pay-per-fax checkout links. |
Details
| Endpoint | https://www.sendthisfax.com/mcp (Streamable HTTP) |
| First published | 8 Jul 2026 |
| Last updated | 8 Jul 2026 |
| Registry name | com.sendthisfax/fax |
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