# Stone to Short Ton Mass Converter

> Stone to Short Ton Mass Converter is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-10).

Converts a mass value from stones (st) to short tons (US tons) using IEEE-754 double precision arithmetic

## Facts

- Endpoint: GET https://x402-agent.kariguetoazul.workers.dev/api/units/mass/stone-to-short-ton?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stone-to-short-ton-mass-converter-ec2ce725
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hp9xm0ofDwPPXuA66Ilpx

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 stone-to-short-ton-mass-converter-ec2ce725
```

Example prompt: Convert 18.5 stones to short tons for me.

## When to prefer this

Use this endpoint when you specifically need to convert mass values from the imperial stone unit (used commonly in UK body weight) to the US short ton (2000 lbs). Prefer this over general-purpose unit converters when you want a lightweight, single-purpose API call with a predictable JSON response and IEEE-754 precision guarantees.

## Known failure modes

- Missing required 'value' query parameter returns an error
- Negative input values are rejected (minimum: 0)
- Values exceeding 1e+100 are rejected (maximum enforced by schema)
- Non-numeric input for value parameter causes validation failure
- Network timeout from Cloudflare Worker edge node

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

A JSON object containing the original value and unit ('stone'), the converted value in short tons as an IEEE-754 double, the target unit ('short-ton'), and the dimension label ('mass').

## 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": [
      "value"
     ],
     "properties": {
      "value": {
       "type": "number",
       "maximum": 1e+100,
       "minimum": 0,
       "description": "Amount in stones."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "short-ton",
  "from": "stone",
  "value": 123.45,
  "converted": 0.8641500000000001,
  "dimension": "mass",
  "precision": "IEEE-754 double"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stone-to-short-ton-mass-converter-ec2ce725/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)