
Bounty Api
io.github.vncent786由 GitHub 帳號 vncent786 發布v1.8.0更新於 Oct 25, 2026
Singapore property & financial data APIs for AI agents. 27 MCP tools. x402 micropayments.
概覽
BountyAPI MCP 伺服器,為 AI 助理提供新加坡房產與金融資料工具,付費端點可選用 USDC 微支付自動結算。
- 可以做什麼
- 依買方身分計算新加坡房產印花稅(BSD 與 ABSD),並提供分級明細,資料來源為 IRAS(免費)。將新加坡郵遞區號查詢對應到 28 個郵區(免費)。計算租金投資指標,如毛收益率、淨收益率、資本化率、租售比與現金流(付費)。依城鎮與房型取得組屋轉售中位價,並依城鎮、房型與價格區間搜尋單筆組屋轉售交易(付費)。設定錢包金鑰後,付費呼叫會在 Base 上以 USDC 自動結算。
- 適用情境
- 適合需要新加坡房產資料的情境:印花稅估算、郵區查詢、租金收益率計算或組屋轉售價格研究。免費工具無需錢包即可使用;付費工具適合希望按次自動購買資料的使用者。
- 執行需求
- 可作為遠端端點使用,也可透過 npx 以本機 npm 套件(bountyapi-mcp)執行,需要 Node.js。需要能連線至該 API 的網路。付費端點需要 Base 上存有 USDC 的錢包及環境變數 EVM_PRIVATE_KEY;MAX_SPEND_USD 限制單次請求花費(預設 1.00),BOUNTY_API_URL 可覆寫基礎位址。
安裝
在 SourceWeft 中
- 開啟 儀表板中的 Bounty Api,將其新增到工作區。
- 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/io.github.vncent786%2Fbounty-api/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。其他 MCP 客戶端
把它新增到你客戶端的 mcpServers 設定中。
{
"mcpServers": {
"bounty-api": {
"type": "http",
"url": "https://bountyapi.com/mcp"
}
}
}README
bountyapi-mcp
MCP server for BountyAPI — specialist data APIs for AI agents with x402 micropayment support.
Connect AI agents (Claude Desktop, Cursor, etc.) to BountyAPI endpoints at https://bountyapi.com. Free endpoints work out of the box. Paid endpoints require a funded wallet — the agent pays automatically per request.
Quick Start
Free tools only (no wallet needed)
With payment support (paid endpoints auto-pay)
- Create a burner wallet on Base with $2-5 of USDC
- Export the private key
- Configure:
Or via CLI:
Then ask your AI:
"What's the stamp duty for a $1.5M property in Singapore for a Singapore Citizen buying their first home?"
"Search for recent HDB resale transactions in Tampines, 4 ROOM only"
"What's the rental yield on a $1.2M condo renting at $4,200/month?"
How Payments Work
When an agent calls a paid endpoint:
- Server returns
402 Payment Requiredwith payment instructions - MCP server reads the price and checks against
MAX_SPEND_USD - If within limit, it signs a USDC transfer on Base and retries
- Server verifies payment via facilitator and returns data
- Settlement is logged with a Basescan transaction link
The agent never sees the payment — it just gets the data. Cost: ~$0.01 per paid call.
Available Tools
sg_stamp_duty (FREE)
Calculate Singapore property stamp duty (BSD + ABSD).
- Buyer profiles: SC, SPR, FR, entity, developer, trustee
- Returns total duty, effective rate, and tier-by-tier breakdown
- Source: IRAS (iras.gov.sg)
sg_postal_lookup (FREE)
Look up Singapore postal code to district.
- All 28 postal districts with area names
- Returns district number, name, and areas
sg_rental_yield (PAID)
Calculate rental investment metrics.
- Gross yield, net yield, cap rate
- Price-to-rent ratio, monthly cashflow, years to break even
hdb_resale_median (PAID)
Get HDB resale price data by town.
- All 26 HDB towns
- Median prices by flat type (2 ROOM through EXECUTIVE)
- Sampled transaction aggregates from data.gov.sg
hdb_resale_search (PAID)
Search HDB resale transactions with filters.
- Filter by town, flat type, price range
- Returns individual transaction records
Environment Variables
Safety
- Never use your main wallet. Create a dedicated burner wallet with only a few dollars of USDC on Base.
- The
MAX_SPEND_USDlimit prevents unexpected charges — each request is checked before payment. - Private keys are never logged or transmitted to the API server. They only sign local payment authorizations.
Development
License
MIT
來源:mcp-server/README.md,提交 b318241
工具
0版本歷史
1- v1.8.0最新Sep 16, 2026
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