GotFreeFax

com.gotfreefax由 gotfreefax.com 發布官方發布者v1.0.1更新於 Oct 24, 2026

Send free or paid faxes to US/Canada from Claude, ChatGPT, and other AI agents.

已驗證Streamable HTTP可網頁執行溝通與協作商業與電商

概覽

AI 產生的概覽

遠端 MCP 伺服器，讓助理傳送免費或付費傳真到美國與加拿大號碼、查詢傳送狀態並管理預付額度。

可以做什麼
  • 傳送傳真到美國與加拿大號碼：免費方式（上限 3 頁、需電子郵件確認）或透過預付帳號傳送，可附上 PDF、DOC、DOCX、JPG、TXT 檔案
  • 依 job_id 查詢傳真投遞狀態，並列出該帳號已傳送的傳真
  • 查看帳號的頁數餘額與金額餘額
  • 發起預付額度購買並取得 PayPal 付款連結
  • 列出可傳真的檔案格式
適用情境
適合在對話中直接把文件傳真給美國或加拿大收件人：一次性免費傳送需電子郵件確認，或使用預付帳號傳送較大文件且不需確認步驟。
執行需求
遠端 MCP 端點，不需本機安裝。不支援原生 HTTP MCP 的用戶端需搭配 mcp-remote 之類的橋接工具，這需要 Node.js。免費工具不需帳號；付費工具需在 Authorization 標頭提供由預付帳號號碼與 PIN 組成的 Bearer 權杖。需要能連線至該服務的網路。
安裝前請注意
付費工具需要 Authorization 標頭攜帶帳號號碼與 PIN，應視為機密。purchase_credits 會導向真實 PayPal 付款（例如 100 頁 9.95 美元），付款後才會載入額度。傳送傳真會把文件內容及寄件人、收件人資訊傳給 GotFreeFax。免費傳真在確認信收件人點擊連結前不會送出，每日上限在點擊時才檢查。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 GotFreeFax，將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Web executable，透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

交給代理程式安裝

把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式，或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南，先向你展示發布者、端點和登入方式，經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。

閱讀 https://sourceweft.com/mcp/com.gotfreefax%2Fmcp/install.md，並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前，先告訴我它的發布者、端點和登入方式，等我確認。不要把 API 金鑰寫進命令或我會提交的檔案；問我金鑰應從哪裡取得。

檢視代理程式所依據的安裝指南

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "mcpServers": {
    "gotfreefax": {
      "type": "http",
      "url": "https://www.gotfreefax.com/mcp"
    }
  }
}

README

[GotFreeFax]

GotFreeFax MCP Server

[License: MIT] [MCP]

Send faxes to the US and Canada from Claude, ChatGPT, Codex, and other AI agents over the Model Context Protocol. No account required to start.

What it does

The GotFreeFax MCP Server exposes GotFreeFax.com's fax-sending capabilities as MCP tools. An AI agent can:

  • Send a free fax to any US/Canada number (3-page limit, 2/day per email & IP, email-confirmation required)
  • Send a paid fax (up to 300 pages, no confirmation step) once the user has a prepaid account
  • Purchase prepaid credits without leaving the chat — the tool returns a PayPal payment link
  • Check fax status, list sent faxes, and view account balance

The free tier means a brand-new user can complete a real workflow ("Claude, please fax this to my doctor") with no signup. Paid tiers unlock larger documents and remove the confirmation step.

Quick start (Claude Desktop, free, no account)

Add this to your claude_desktop_config.json and restart Claude Desktop:

json
{  "mcpServers": {    "gotfreefax": {      "command": "npx",      "args": ["mcp-remote", "https://www.gotfreefax.com/mcp"]    }  }}

Then ask Claude something like:

"Send a free fax to 555-123-4567 with the text 'Hello from Claude'."

Claude calls send_free_fax, you receive a confirmation link by email, and the fax sends once you click it.

Requires Node.js installed locally — mcp-remote bridges Claude Desktop to the remote MCP endpoint.

Available tools

ToolDescriptionAuth
send_free_faxSend a free fax (≤3 pages, 2/day/email/IP, email-confirmation required)None
send_faxSend a fax via a prepaid account (≤300 pages, no confirmation)Bearer
check_fax_statusLook up the delivery status of a fax by job_idNone
list_sent_faxesList paid faxes the authenticated account has sentBearer
get_account_balanceCurrent page balance + dollar balance for the authenticated accountBearer
purchase_creditsStart a prepaid credit purchase. Returns a PayPal payment URL. Authenticated → credits added to existing account; unauthenticated → creates account from email+nameOptional Bearer
list_supported_formatsStatic list of accepted file types (PDF, DOC, DOCX, JPG, JPEG, TXT)None

See the full documentation for per-tool parameter schemas and response shapes.

Client setup

Claude Desktop

No credentials (free tools only): see Quick start above, or examples/claude_desktop_config.json.

With credentials (full access): see examples/claude_desktop_config.with-auth.json.

Codex CLI (OpenAI)

Add to ~/.codex/config.toml — see examples/codex.config.toml.

ChatGPT

ChatGPT's MCP support is rolling out across surfaces. The most reliable path as of mid-2026 is the ChatGPT desktop app's connector / MCP settings; the web UI uses an OAuth-based Connectors mechanism configured in account settings (not via JSON files). The values you need:

  • Endpoint: https://www.gotfreefax.com/mcp
  • Transport: Streamable HTTP (JSON-RPC 2.0 over POST)
  • Authentication (for paid tools): Bearer token, format "Bearer " + base64(account_number + ":" + pin)

Follow OpenAI's current documentation for the exact UI steps.

Cursor, Windsurf, and other MCP clients

Any client that speaks MCP over HTTP can connect. Use the same JSON shape as Claude Desktop in the client's MCP settings.

Raw JSON-RPC (custom clients)

bash
curl -X POST https://www.gotfreefax.com/mcp \  -H "Content-Type: application/json" \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

See the Examples section of the canonical docs for full per-tool requests and responses.

Authentication

Free tools work anonymously. Authenticated tools require an Authorization header:

Authorization: Bearer <base64(account_number:pin)>

Where account_number and pin come from a GotFreeFax prepaid account. You can buy one through the purchase_credits tool without leaving your AI client — after PayPal payment, account credentials are emailed to you.

Rate limiting: 5 failed auth attempts per IP per 30 min; 10 per account per 30 min. Detailed PIN/auth design at the Authentication section of the docs.

Pricing

TierCostIncludes
Free (send_free_fax)$03 pages max, 2/day per email/IP, email-confirmation step
Prepaid 100 pages$9.95send_fax with no confirmation step
Prepaid 250 pages$19.95as above
Prepaid 800 pages$49.95as above
International prepaid$49.95 / $99.95 / $199.95dollar-balance-based, see docs

purchase_credits returns a standard PayPal payment URL; payment is processed by PayPal. GotFreeFax does not store payment instruments.

Privacy & terms

This MCP server is a thin protocol surface over the existing GotFreeFax.com service. Standard service terms apply:

Fax content, sender/recipient identifiers, and account credentials are transmitted to GotFreeFax for delivery. No fax content is logged beyond what's required for delivery and statutory record-keeping.

About this repo

This repository is the canonical project page for the GotFreeFax MCP Server, containing setup examples, an MCP manifest, and pointers to the live service. The server itself is hosted at https://www.gotfreefax.com/mcp — there is no local installation. The repo is published under the MIT License so the config snippets are free to copy into your own setups.

The server implementation is part of the GotFreeFax.com web application (closed-source).

Links

來源：README.md，提交 83e1eb8

工具

7

send_fax

Send a fax to a US or Canada phone number. Accepts PDF, DOC, DOCX, JPG, JPEG, TXT files (max 10) as base64-encoded content.

輸入參數files必填fax_number必填notify_url

check_fax_status

Check the delivery status of a previously sent fax using its job_id. No authentication required — the job_id is the unforgeable token.

輸入參數job_id必填

get_account_balance

Get the current page balance and dollar amount balance for the authenticated account.

無需輸入參數。

list_sent_faxes

List faxes previously sent by the authenticated account (most recent first). Includes faxes sent via MCP, REST API, and the prepaid web form. Free anonymous sends are not included.

輸入參數limitoffset

purchase_credits

Start a prepaid credit purchase. If the request is authenticated, credits will be loaded into the authenticated account after PayPal payment. If the request is not authenticated, provide email and name to create a new prepaid account (or load credits into an existing one with the same email). Returns a PayPal payment URL the user must visit to complete the purchase.

輸入參數nameemailservice_type必填

send_free_fax

Send a free fax to a US or Canada number (no account required). Limited to 3 pages total and 2 sends per email/IP per day. Returns a job_id immediately, but the fax does NOT send until the sender clicks a confirmation link emailed to sender_email. The daily-limit check happens at click time, not at submission — a submitted fax may still be rejected if the limit is hit by then; the agent can detect this by calling check_fax_status after the user reports clicking the link. If the document exceeds the free page limit, the response will suggest using purchase_credits to buy a prepaid account.

輸入參數textfilessubjectfax_number必填sender_faxcover_sheetsender_name必填sender_email必填receiver_name必填sender_companyreceiver_company

list_supported_formats

List all supported file formats that can be faxed.

無需輸入參數。

版本歷史

1
  1. v1.0.1最新Sep 16, 2026

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