# Carats to UK Tons (Mass) Converter

> Carats to UK Tons (Mass) Converter is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).

Converts a numeric mass value from carats to UK tons (long tons) via a simple GET query parameter.

## Facts

- Endpoint: GET https://agent402.tools/api/convert/carats-to-uk-tons
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/carats-to-uk-tons-mass-converter-1f301e0b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qkm95g6EgH5TOh_dRWnYI

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 carats-to-uk-tons-mass-converter-1f301e0b
```

Example prompt: Can you convert 25000 carats to UK tons for me?

## When to prefer this

Use this endpoint when you specifically need to convert mass values from carats (used in gemstone and precious metal weighing) to UK long tons. Prefer this over generic conversion libraries when operating in an agent workflow that already uses the agent402.tools payment-gated API ecosystem.

## Known failure modes

- Missing 'value' query parameter returns an error or bad request response
- Non-numeric value passed causes a parse/validation error
- Extremely large or small numbers may cause overflow or precision issues
- Service unavailability returns a 402 or 5xx error

## How this service works

Convert carats to uk tons (mass). Pass ?value=N.

## Output

Returns the converted numeric value representing the input quantity of carats expressed as UK tons (long tons).

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "value"
     ],
     "properties": {
      "value": {
       "type": "string",
       "description": "Numeric value to convert"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carats-to-uk-tons-mass-converter-1f301e0b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)