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SendFaxFast MCP Server

by sendfaxfast Your server? Claim it
answering

SendFaxFast is answering right now. Last checked 15 min ago. It exposes 6 tools.

Send real faxes from AI chat. PDF, JPG or PNG. Pay per fax via Stripe link. US, CA, AU, NZ + 39

Uptime history 65 hours of history
65 hours agonow
100.0%
Uptime 24h
91 of 91 checks
6
Tools
read from the server
193 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

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

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

run in your terminal
claude mcp add fax --transport http https://sendfaxfast.com/api/mcp.php
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "fax": {
      "url": "https://sendfaxfast.com/api/mcp.php"
    }
  }
}
~/.codex/config.toml
[mcp_servers.fax]
url = "https://sendfaxfast.com/api/mcp.php"
.cursor/mcp.json
{
  "mcpServers": {
    "fax": {
      "url": "https://sendfaxfast.com/api/mcp.php"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "fax": {
      "url": "https://sendfaxfast.com/api/mcp.php"
    }
  }
}

Available tools 6

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
Calculate the pay-per-fax price for sending a fax to a specific number. 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 a fax. Use token for pay-per-fax orders, fax_id for subscription orders (fax_id requires your API key; only your own faxes are visible).
list_fax_history
List recent faxes sent from this subscription account. Requires your subscription API key (sff_...).
account
get_account_info
Get subscription plan details, remaining fax quota, and billing period. Requires your subscription API key (sff_...).
send
send_fax
Send a PDF document to a fax number. WITHOUT API key: returns a Stripe checkout link (pay-per-fax from $2.89) – the fax is sent after the user pays. WITH a Mini/Flex subscription key (sff_...): sends immediately from the subscription quota. The document must be a direct, publicly accessible HTTPS link to a PDF (max. 10 MB). Supported: USA, Canada, Australia, New Zealand and 39 more countries (same list as sendfaxfast.com); premium-rate numbers are not supported. Each call transmits (or, for pay-per-fax, prepares the checkout for) 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

URLTransportStateLatencyChecked
https://sendfaxfast.com/api/mcp.php streamable-http answering 312 ms 15 min ago

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SendFaxFast — questions

Answers built from our own checks of this server.

What can SendFaxFast do?
It exposes 6 tools, read directly from the server on our last check. Among them: create_upload_link, get_account_info, get_fax_price, get_fax_status, list_fax_history, 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 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 193 ms. The bar chart above shows every period we have measured.
How do I connect SendFaxFast?
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 need an API key?
No. SendFaxFast completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is SendFaxFast?
It answers our handshake in 193 ms on average, which is faster than 64% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.