Bounty Api

by vncent786

181 downloads

Not rated

GitHub Website

About

Agent-native API marketplace with x402 micropayments. AI agents discover via MCP, pay per call in USDC on Base.

Details

Author: vncent786
Downloads: 181

Setting up with Highlight

This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:

Download and install Highlight from highlightai.com/download
Navigate to the plugins tab and select "Add Custom Plugin"
Configure the plugin with the settings below

Plugin Name Bounty Api

Command (node, npx, python, etc.)

Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
Enable "Start Automatically" if you want the plugin to start when Highlight launches

Setting up with Cursor

Open Cursor's settings
Navigate to the MCP section
Click "Add new Global MCP server"
Copy and paste the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

Setting up with Claude Desktop

Open Claude Desktop's settings
Go to the Integrations tab
Click "Add MCP Server"
Use the configuration below based on your operating system

Note: Make sure Claude Desktop is running before attempting to connect.

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

Setting up with Windsurf

Open Windsurf's preferences
Go to the Integrations section
Click "Add MCP Integration"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

Setting up with Cline

Open Cline's settings
Navigate to the Integrations section
Click "Add MCP Server"
Copy and paste the configuration below based on your operating system

Note: Make sure to restart Cline after adding the configuration.

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

Setting up with Goose

Open Goose's preferences
Go to the Integrations tab
Select "MCP Servers"
Click "Add New Server"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

From the repository

The README includes setup instructions such as → Supports both stdio (npx) and HTTP transport (/mcp endpoint).

`sg_stamp_duty`

Calculate Singapore property stamp duty (BSD + ABSD). Returns total stamp duty, effective rate, and breakdown by tier. Buyer profiles: SC (Singapore Citizen), SPR (Permanent Resident), FR (Foreigner), entity, developer, trustee. Rates verified against IRAS (iras.gov.sg). (FREE)

`sg_postal_lookup`

Look up Singapore postal code to find the district number, district name, and area names. Covers all 28 postal districts. (FREE)

`sg_address_intel`

Full address intelligence for a Singapore postal code. Returns district, planning area (URA Master Plan), market region (CCR/RCR/OCR), HDB town, approximate coordinates, and the 5 nearest MRT stations with walking distance and time. 140+ MRT stations in database covering all 6 lines. (FREE)

`sg_mrt_near`

Find nearest MRT/LRT stations to a Singapore postal code. Returns station name, MRT lines, distance in km, and estimated walking time. Free endpoint. (FREE)

`sg_mrt_search`

Search MRT stations by name. Returns station name, MRT line codes, and coordinates. Covers all 140+ stations across 6 MRT lines. (FREE)

`sg_affordability`

Calculate Singapore property loan affordability under MAS TDSR/MSR framework. Checks if a borrower can afford a property based on Total Debt Servicing Ratio (55%), Mortgage Servicing Ratio (30% for HDB), LTV limits, and stress-tested interest rates. Returns max affordable loan and property price. (PAID — auto-pay if wallet configured)

`sg_rental_yield`

Calculate rental investment metrics for a Singapore property. Returns gross yield, net yield, cap rate, price-to-rent ratio, monthly cashflow, and years to break even. (PAID — auto-pay if wallet configured)

`hdb_resale_median`

Get HDB resale price data for a Singapore town. Returns median prices by flat type (2 ROOM through EXECUTIVE) with transaction counts. Data sourced from data.gov.sg. (PAID — auto-pay if wallet configured)

`hdb_resale_search`

Search HDB resale transactions with filters. Returns individual transaction records with flat type, storey, area, and price. (PAID — auto-pay if wallet configured)

`sg_property_analyze`

COMPLETE property investment analysis in one call. Combines stamp duty (IRAS), HDB transaction comparables (data.gov.sg), rental yield, MAS TDSR/MSR affordability check, and MRT location intelligence. Returns a verdict with risk flags. This is the most comprehensive Singapore property analysis endpoint available — no agent can replicate this by scraping. Region parameter supports future expansion (SG now, HK/AE/AU/JP planned). (PAID — auto-pay if wallet configured)

`sg_property_rank`

Rank multiple candidate properties by investment value. Accepts properties from ANY source (user, web search, listing portals) and enriches each with stamp duty, transaction comps, rental yield, affordability, and location data. Returns ranked list with transparent scores (0-100) across 4 dimensions: value vs comps, rental yield, affordability, location. This is the decision layer — an agent gathers listings anywhere, Bounty tells it which one is best. (PAID — auto-pay if wallet configured)

`sg_property_pitch`

Generate a complete property investment pitch — the kind of one-page analysis a property agent presents to a client. Combines price fairness vs transaction comps, stamp duty breakdown, MAS affordability check, rental yield projection, location intelligence (MRT, district, region), tenure/lease risk assessment, and a plain-English verdict with recommendation. This is the highest-value output for property agents and investors. (PAID — auto-pay if wallet configured)

`sg_income_tax`

Calculate Singapore individual income tax. Resident progressive rates (0-22%, YA 2024+). Non-residents: 15% flat or progressive. Returns marginal breakdown, effective rate, and tax payable. FREE

`sg_gst`

Add or remove Singapore GST (9% from 1 Jan 2024). mode='add' calculates GST on a price; mode='remove' extracts GST from a GST-inclusive price. FREE

`sg_property_commission`

Estimate Singapore property agent commission for sale or rental transactions. HDB, private, landed. Rates are market norms (CEA), not legally fixed. FREE

`sg_cpf_housing`

Estimate CPF Ordinary Account (OA) accumulation for housing use. Shows monthly OA contribution by age band, 3-year and 5-year projected balances at 2.5% interest. FREE

`sg_salary_benchmark`

Benchmark salary for a Singapore role using live MyCareersFuture (government job portal) data. Returns median, percentile ranges, annual equivalents from real employer-posted salary ranges. Not self-reported — actual job postings. FREE

`sg_property_tax`

Calculate Singapore property tax. Owner-occupier residential: progressive 0-32%. Non-owner-occupied: 10-20%. Non-residential: flat 10%. Based on IRAS Annual Value. FREE

`sg_buy_vs_rent`

Buy-vs-rent analysis for Singapore property. Compares total cost of buying (mortgage, stamp duty, property tax, maintenance) vs renting (rent + opportunity cost of down payment invested). Returns net cost comparison and recommendation. FREE

`sg_school_proximity`

Find Singapore primary/secondary schools within 1km and 2km of a postal code. Useful for Primary 1 distance-priority and property valuation. FREE

`hdb_eip_quota`

Explain HDB Ethnic Integration Policy (EIP) and SPR quota limits for a buyer. Includes quota percentages and transaction-risk guidance. Real-time block availability still requires HDB portal verification. FREE

`hdb_lease_decay`

Analyze HDB lease decay: remaining lease, financing/CPF restrictions, risk thresholds, SERS caveat, and optional value impact. FREE

`ura_status`

Check if URA private property data is connected and available. FREE

`ura_transactions`

Get private residential property transactions (caveat data) from URA. Returns project, price, PSF, area, tenure, date, sale type. Batch 1 is most recent. $0.05/call

`ura_rental_median`

Get median rental rates ($psf/month) for private residential projects from URA. Optional project name filter. $0.05/call

`ura_developer_sales`

Get developer units sold by project from URA. Units launched, sold, remaining, median price. $0.05/call

`ura_pipeline`

Get future private residential supply pipeline from URA. Upcoming projects, units planned, expected completion. $0.05/call

Claude Desktop / Cursor

Paste into your MCP client config file to install this server.

{
    "mcpServers": {
        "bounty api": {
            "bounty-api": {
                "command": "npx",
                "args": [
                    "bountyapi-mcp"
                ]
            }
        }
    }
}

McpServers

{
    "bounty-api": {
        "command": "npx",
        "args": [
            "bountyapi-mcp"
        ]
    }
}

Bounty API

Agent-native data APIs where AI agents pay per request in USDC on Base. Singapore property & financial data, live now.

Live at bountyapi.com

What it does

AI agents discover data APIs via MCP, call them, and pay automatically using x402 micropayments. No API keys. No subscriptions. No scraping. One price per call, known upfront, settled on-chain.

Agent calls GET /company-lookup?name=ACME
  → Server returns 402 Payment Required ($0.05 USDC)
  → Agent signs payment on Base
  → Server returns data + settlement receipt
  → Transaction verifiable on Basescan

Verified working

Real on-chain transaction — an AI agent autonomously paid for data on Base mainnet:
- Tx: 0xc42354ea...
- Amount: $0.01 USDC
- Network: Base (eip155:8453)
- Facilitator: PayAI

Architecture

Layer 1: Raw API endpoints (FastAPI)
  → bountyapi.com/bsd, /hdb/towns, /postal/{code}, etc.
Layer 2: x402 payment middleware

  → Paid endpoints return 402 + payment instructions

  → Agent pays USDC on Base → facilitator verifies → data returned
Layer 3: MCP discovery (npm: bountyapi-mcp)

  → Agents discover APIs as tools via Model Context Protocol

  → Supports both stdio (npx) and HTTP transport (/mcp endpoint)

  → Wallet-aware: auto-pays for paid endpoints when configured

Live APIs (7 endpoints)

| API | Type | Price | Description |
|-----|------|-------|-------------|
| Stamp Duty (BSD + ABSD) | FREE | $0 | Singapore property stamp duty, verified against IRAS |
| Postal District Lookup | FREE | $0 | 28 postal districts, mapped from URA source |
| Mortgage Calculator | FREE | $0 | Standard amortization |
| Compound Interest | FREE | $0 | Growth projections |
| Currency Converter | FREE | $0 | 30+ currencies, ECB rates |
| HDB Resale Data | PAID | $0.01/call | Government transaction data from data.gov.sg |
| Rental Yield Calculator | PAID | $0.005/call | Investment metrics (gross yield, cap rate, cashflow) |

Every response carries source provenance. No interpolated or fabricated values.

Quick start

Install the MCP server

npx bountyapi-mcp

With payment support (for paid endpoints)

EVM_PRIVATE_KEY=0x... MAX_SPEND_USD=1.00 npx bountyapi-mcp

Claude Desktop config

{
  "mcpServers": {
    "bounty": {
      "command": "npx",
      "args": ["bountyapi-mcp"],
      "env": {
        "EVM_PRIVATE_KEY": "0x...",
        "MAX_SPEND_USD": "1.00"
      }
    }
  }
}

Then ask Claude: "What's the stamp duty on a $1.5M Singapore property for a first-time buyer?"

Direct API calls (no MCP needed)

```bash

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About

Details

Jump to

Setting up with Highlight

From the repository

sg_stamp_duty

sg_postal_lookup

sg_address_intel

sg_mrt_near

sg_mrt_search

sg_affordability

sg_rental_yield

hdb_resale_median

hdb_resale_search

sg_property_analyze

sg_property_rank

sg_property_pitch

sg_income_tax

sg_gst

sg_property_commission

sg_cpf_housing

sg_salary_benchmark

sg_property_tax

sg_buy_vs_rent

sg_school_proximity

hdb_eip_quota

hdb_lease_decay

ura_status

ura_transactions

ura_rental_median

ura_developer_sales

ura_pipeline

Claude Desktop / Cursor

McpServers

Bounty API

What it does

Verified working

Architecture

Live APIs (7 endpoints)

Quick start

Install the MCP server

With payment support (for paid endpoints)

Claude Desktop config

Direct API calls (no MCP needed)

Install

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`sg_stamp_duty`

`sg_postal_lookup`

`sg_address_intel`

`sg_mrt_near`

`sg_mrt_search`

`sg_affordability`

`sg_rental_yield`

`hdb_resale_median`

`hdb_resale_search`

`sg_property_analyze`

`sg_property_rank`

`sg_property_pitch`

`sg_income_tax`

`sg_gst`

`sg_property_commission`

`sg_cpf_housing`

`sg_salary_benchmark`

`sg_property_tax`

`sg_buy_vs_rent`

`sg_school_proximity`

`hdb_eip_quota`

`hdb_lease_decay`

`ura_status`

`ura_transactions`

`ura_rental_median`

`ura_developer_sales`

`ura_pipeline`