# China Sourcing Audit Tools – Landed Cost Calculator

> China Sourcing Audit Tools – Landed Cost Calculator is a paid API for AI agents from x402-stable-door.lu7897859.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Calculates the total landed cost of importing goods from China, breaking down freight, customs duties, and other charges by weight, dimensions, shipping mode, and declared goods value.

## Facts

- Endpoint: POST https://x402-stable-door.lu7897859.workers.dev/landed_cost_calc
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/china-sourcing-audit-tools-landed-cost-calculator-506974f0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lbnZKkzEZt4YMVtxLGEyZ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability china-sourcing-audit-tools-landed-cost-calculator-506974f0 -d '<json body>'
```

Example prompt: Can you calculate the landed cost for a 120 kg shipment by sea freight with a declared goods value of $4,500 — the package is 80 cm × 60 cm × 50 cm?

## When to prefer this

Use this endpoint when you need a fast, itemized landed cost estimate for goods being imported from China and want a breakdown of freight vs customs before committing payment to a supplier. Ideal for pre-purchase due diligence workflows, supplier quote comparisons, or budgeting tools. Complements other China sourcing audit endpoints on the same platform for end-to-end vetting.

## Known failure modes

- Missing required fields (kg, shipping_mode, goods_value_usd) returns a validation error
- Invalid shipping_mode value outside the enum ['air','sea','express'] causes rejection
- Zero or negative weight/value may return an error or unreliable estimate
- Dimensional inputs (width_cm, height_cm, length_cm) omitted may result in volumetric weight not being considered
- Payment failure in USDC on Base blockchain returns 402 Payment Required

## How this service works

AI tools for vetting Chinese suppliers and import risk before money moves: factory-vs-trader verification, landed cost, payment red flags, audit checklist, certification checks, full audit chain. Pay-per-call in USDC on Base via x402.

## Output

Returns a JSON object with the total landed cost in USD, itemized freight cost in USD, itemized customs cost in USD, and a detailed breakdown object showing how each cost component was calculated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "kg",
  "shipping_mode",
  "goods_value_usd"
 ],
 "properties": {
  "kg": {
   "type": "number",
   "description": "Weight in kilograms"
  },
  "width_cm": {
   "type": "number"
  },
  "height_cm": {
   "type": "number"
  },
  "length_cm": {
   "type": "number"
  },
  "shipping_mode": {
   "enum": [
    "air",
    "sea",
    "express"
   ],
   "type": "string"
  },
  "goods_value_usd": {
   "type": "number"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "breakdown": {
   "type": "object"
  },
  "customs_usd": {
   "type": "number"
  },
  "freight_usd": {
   "type": "number"
  },
  "total_landed_cost_usd": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/china-sourcing-audit-tools-landed-cost-calculator-506974f0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-stable-door.lu7897859.workers.dev](https://www.zero.xyz/host/x402-stable-door.lu7897859.workers.dev/llms.txt)