# Strale Shipping Cost Estimate

> Strale Shipping Cost Estimate is a paid API for AI agents from api.strale.io, paid per call via x402, $0.162/call, status unknown (last checked 2026-09-15).

Estimates international shipping costs for a given origin country, destination country, and package weight in kilograms

## Facts

- Endpoint: GET https://api.strale.io/x402/v2/shipping-cost-estimate
- Price: $0.162/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-shipping-cost-estimate-a55438ff
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nNDliXPcy5cGRtIgFwoVU

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 strale-shipping-cost-estimate-a55438ff
```

Example prompt: How much would it cost to ship a 3.5 kg package from the United States to Japan? I need a shipping cost estimate.

## When to prefer this

Choose this endpoint when you need a programmatic, auditable shipping cost estimate for international routes, especially in agentic workflows where a cryptographic audit trail is required. Useful for e-commerce checkout flows, logistics planning tools, or any scenario where you need fast, structured shipping cost data across 27+ supported countries without scraping carrier websites manually.

## Known failure modes

- Missing required query parameters (origin_country, destination_country, weight_kg) returns a 400 or validation error
- Unsupported country pair or route not available returns an empty or error response
- Invalid weight value (negative or non-numeric) causes a schema validation failure
- Payment not fulfilled via x402 protocol returns a 402 Payment Required
- Rate limiting or service unavailability returns a 5xx error
- Unknown shipping service specified may return no results or an error

## How this service works

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

## Output

Returns a structured JSON object with a shipping cost estimate for the specified origin country, destination country, and package weight, along with an audit record containing a cryptographic chain hash for provenance and trust verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "origin_country",
      "destination_country",
      "weight_kg"
     ],
     "properties": {
      "service": {
       "type": "string"
      },
      "weight_kg": {
       "type": "number"
      },
      "origin_country": {
       "type": "string"
      },
      "destination_country": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-shipping-cost-estimate-a55438ff/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)