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SignalDesk AI – Calorie to Kilojoule Converter
x402
SignalDesk AI – Calorie to Kilojoule 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 2026-10-13).
Converts a thermochemical calorie value to kilojoules using IEEE-754 double precision arithmetic.
Price / call$0.001
Success—
StatusUnknown
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
Returns a JSON object containing the original calorie value, the converted kilojoule amount (IEEE-754 double precision), the source and target unit labels ('calorie' and 'kilojoule'), and the physical dimension ('energy').
Example use cases
Nutrition label energy conversion
“I need to convert 350 calories to kilojoules for a nutrition label I'm putting together — can you get the exact kJ value?”
Physics homework energy calculation
“My homework problem uses 1200 thermochemical calories — can you tell me what that is in kilojoules?”
Fitness app metric localization
“A user's workout burned 480 calories — convert that to kilojoules so I can display the right unit for European users.”
Technical details
Endpoint
GEThttps://x402-agent.kariguetoazul.workers.dev/api/units/energy/calorie-to-kilojoule?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a precise, programmatic calorie-to-kilojoule conversion with structured JSON output and clear unit metadata, especially in automated agent workflows where IEEE-754 double precision is required. Prefer it over manual formula application or general-purpose calculators when you need consistent, machine-readable energy conversion results at low cost ($0.001 USDC).
Side effects
- Missing or non-numeric 'value' query parameter returns a validation error
- Negative calorie input may be rejected (minimum is 0 per schema)
- Values exceeding 1e+100 are rejected by schema validation
- Payment not provided or invalid x402 payment header returns 402 Payment Required
- Cloudflare Worker cold-start or quota exhaustion may return 503 or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "kilojoule",
"from": "calorie",
"value": 123.45,
"converted": 0.5165148,
"dimension": "energy",
"precision": "IEEE-754 double"
}
}Tags
x402
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