SendFaxFast (AI Fax Credits)

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com.sendfaxfast/fax-creditsv1.1.0 Domain verified

Send faxes from AI chat with prepaid credits (1 credit = 1 fax, up to 100 pages). PDF, JPG, PNG.

Communication

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https://sendfaxfast.com/api/mcp-credits.php

X-API-Key (required)

Your sfx_ key from the AI fax credits email (buy at sendfaxfast.com/ai-credits.html)

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

create_upload_link

Creates a secure one-time upload link (valid 30 minutes) for the fax document (PDF, JPG or PNG, max. 10 MB) – upload from phone or computer by drag & drop, file picker or camera. For files on the user's device, or chat attachments that are not available as send_fax's "file" parameter. The user opens upload_url and uploads the file; send_fax then accepts the returned upload_id. Creating a link sends nothing and costs nothing.

This tool takes no arguments.

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

I understand, run it anyway

Tools (5)

create_upload_link

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

get_account_balance

Check how many fax credits remain on your account. Requires your credits API key (sfx_...).

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

get_fax_price

Check if a fax destination is supported and how many credits it costs (a flat 1 credit per fax, up to 100 pages). No API key required. Supported: USA, Canada, Australia, New Zealand and 39 more countries (same list as sendfaxfast.com); premium-rate numbers are not supported.

read-only

Argument	Type	Description
fax_number*	string	Recipient fax number in E.164 format (e.g. +12125550100 for USA, +61212345678 for Australia, +911123456789 for India)

Input schema (JSON)

{
  "type": "object",
  "required": [
    "fax_number"
  ],
  "properties": {
    "fax_number": {
      "type": "string",
      "description": "Recipient fax number in E.164 format (e.g. +12125550100 for USA, +61212345678 for Australia, +911123456789 for India)"
    }
  }
}

get_fax_status

Check the delivery status of one of your faxes. Use the fax_id returned by send_fax. Requires your credits API key; only your own faxes are visible.

read-only

Argument	Type	Description
fax_id*	integer	Fax ID returned by send_fax

Input schema (JSON)

{
  "type": "object",
  "required": [
    "fax_id"
  ],
  "properties": {
    "fax_id": {
      "type": "integer",
      "description": "Fax ID returned by send_fax"
    }
  }
}

send_fax

Send a fax using 1 prepaid credit. Requires your credits API key (sfx_...) and a direct, publicly accessible HTTPS link to a PDF (max. 10 MB, 100 pages). Supported: USA, Canada, Australia, New Zealand and 39 more countries (same list as sendfaxfast.com); premium-rate numbers are not supported. Each call transmits a real fax to the given number. DOCUMENT (exactly one): "upload_id" from create_upload_link (for files on the user's device), "file" (a file attached in ChatGPT, filled in automatically), "document_url" (direct public HTTPS link to a PDF) or "document_base64" (tiny files only, max. 700 KB). For an attachment that is not available as "file", create_upload_link provides an upload link. The result states whether the fax was sent, scheduled or is awaiting payment.

destructive

Argument	Type	Description
file	object	ChatGPT: the fax document the user attached in the chat (PDF, JPG or PNG). Filled in automatically by ChatGPT.
upload_id	string	upload_id returned by create_upload_link (after the user uploaded the file). One-time use.
fax_number*	string	Recipient fax number in E.164 format (e.g. +12125550100)
document_url	string	Direct, publicly accessible HTTPS URL of the PDF document to fax (no login or preview pages) Alternative to upload_id / file.
document_name	string	Optional: original file name of the document (e.g. "invoice.pdf"), shown on the transmission report. Not needed with upload_id or file.