SendFaxFast (AI Fax Credits) MCP Server

by sendfaxfast Your server? Claim it

answering

SendFaxFast (AI Fax Credits) is answering right now. Last checked 13 min ago. It exposes 5 tools.

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

Uptime history 64 hours of history

64 hours agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

195 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check SendFaxFast (AI Fax Credits) every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add fax-credits --transport http https://sendfaxfast.com/api/mcp-credits.php

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "fax-credits": {
      "url": "https://sendfaxfast.com/api/mcp-credits.php"
    }
  }
}

~/.codex/config.toml

[mcp_servers.fax-credits]
url = "https://sendfaxfast.com/api/mcp-credits.php"

.cursor/mcp.json

{
  "mcpServers": {
    "fax-credits": {
      "url": "https://sendfaxfast.com/api/mcp-credits.php"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "fax-credits": {
      "url": "https://sendfaxfast.com/api/mcp-credits.php"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

fax

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.

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.

account

get_account_balance

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

send

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.

upload

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.

Endpoints

URL	Transport	State	Latency	Checked
https://sendfaxfast.com/api/mcp-credits.php	streamable-http	answering	105 ms	13 min ago

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SendFaxFast (AI Fax Credits) — questions

Answers built from our own checks of this server.

What can SendFaxFast (AI Fax Credits) do?

It exposes 5 tools, read directly from the server on our last check. Among them: create_upload_link, get_account_balance, get_fax_price, get_fax_status, send_fax. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is SendFaxFast (AI Fax Credits) working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 195 ms. The bar chart above shows every period we have measured.

How do I connect SendFaxFast (AI Fax Credits)?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does SendFaxFast (AI Fax Credits) need an API key?

No. SendFaxFast (AI Fax Credits) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is SendFaxFast (AI Fax Credits)?

It answers our handshake in 195 ms on average, which is faster than 63% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.