# agent402.tools Joules to Kilocalories Converter

> agent402.tools Joules to Kilocalories 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 energy value from joules to kilocalories via a simple GET request with a query parameter.

## Facts

- Endpoint: GET https://agent402.tools/api/convert/joules-to-kilocalories
- 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/agent402-tools-joules-to-kilocalories-converter-36494ba8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IpW4_sSbgm6yXEYfnhKtq

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 agent402-tools-joules-to-kilocalories-converter-36494ba8
```

Example prompt: How many kilocalories are in 5000 joules? Convert that energy value for me.

## When to prefer this

Use this endpoint when you need a quick, reliable programmatic conversion from joules to kilocalories and are already operating within the x402 micropayment ecosystem. Ideal for agents that need energy unit conversions in physics, nutrition, or engineering workflows without building custom conversion logic.

## Known failure modes

- Missing required query parameter 'value' returns an error
- Non-numeric or malformed 'value' parameter may return a 400 error
- Payment not provided or insufficient USDC balance triggers a 402 response
- Service temporarily unavailable returns a 5xx error

## How this service works

Convert joules to kilocalories (energy). Pass ?value=N.

## Output

Returns the converted energy value expressed in kilocalories corresponding to the input joules value.

## 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/agent402-tools-joules-to-kilocalories-converter-36494ba8/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)