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Saifuban

io.github.ut181749ut/saifuban · v0.4.1

Hard daily caps on AI agents' API spend, plus phone approval before any other payment.

Connect Remote server

Terminal
claude mcp add --transport http saifuban https://zrphnuvrsldcycxtdftv.supabase.co/functions/v1/saifuban-mcp --header "Authorization: Bearer <YOUR_API_KEY>"
~/.cursor/mcp.json
{
  "mcpServers": {
    "saifuban": {
      "url": "https://zrphnuvrsldcycxtdftv.supabase.co/functions/v1/saifuban-mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "saifuban": {
      "type": "http",
      "url": "https://zrphnuvrsldcycxtdftv.supabase.co/functions/v1/saifuban-mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://zrphnuvrsldcycxtdftv.supabase.co/functions/v1/saifuban-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

  • request_payment

    お金を使う前に必ず呼ぶツール。支払先・金額・理由を財布番に申請し、許可が出たかを返す。status が approved のときだけ支払ってよい。pending_approval は持ち主の承認待ちで、まだ支払ってはいけない(持ち主のスマホに通知が届く)。denied や expired のときは支払わず、reason をユーザーに伝える。 / Call this BEFORE spending any money. Pay only when status is approved. pending_approval means the owner m…

  • check_payment_status

    以前の申請(request_id)が承認されたかを確認する。approved になってから支払うこと。 / Check whether an earlier request was approved. Pay only after it is approved.

  • list_payments

    このAI自身の過去の支払い申請を調べる(二重払い・二重契約を避けるため)。例: 今月すでにSpotifyを承認済みか。 / Look up this agent's own past payment requests, e.g. to check whether a Spotify charge was already approved this month, and avoid paying twice.

  • get_budget

    このAIが今日・今週・今月あといくら使えるか、1回の上限、自動承認ライン、使ってよい支払先を確認する。 / Check the remaining daily, weekly and monthly budget, per-payment limit, auto-approve amount and allowed merchants.

Headers

NameDescription
Authorization
Required, secret
Bearer sbk_... agent key from https://ut181749ut.github.io/saifuban/

Details

Endpointhttps://zrphnuvrsldcycxtdftv.supabase.co/functions/v1/saifuban-mcp (Streamable HTTP)
First published8 Nov 2026
Last updated8 Nov 2026
Registry nameio.github.ut181749ut/saifuban

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