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Calorie to BTU Energy Unit Converter
x402
Calorie to BTU Energy Unit 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 numeric value in thermochemical calories to British Thermal Units (BTU)
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 with the original value and unit (from: calorie), the target unit (to: btu), the converted numeric result as an IEEE-754 double precision float, and the physical dimension (energy).
Example use cases
HVAC engineering energy audit
“I need to convert 5000 thermochemical calories to BTU so I can cross-check the energy load in my HVAC spec sheet.”
Food science lab unit normalization
“Can you convert 250 calories to BTU? I'm normalizing energy measurements across different data sources for a food science report.”
Physics homework unit conversion
“What is 1200 calories in BTU? I need it for a thermodynamics problem set.”
Technical details
Endpoint
GEThttps://x402-agent.kariguetoazul.workers.dev/api/units/energy/calorie-to-btu?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, precise, paid-per-call calorie-to-BTU conversion with IEEE-754 double precision output and a simple GET interface. Prefer it when integrating energy unit conversion into automated pipelines that already use the x402 micropayment protocol, and when you specifically need thermochemical calories converted to BTU rather than other energy unit pairs.
Side effects
- Missing or non-numeric 'value' query parameter returns a validation error
- Negative calorie values are rejected (minimum is 0)
- Values exceeding 1e+100 are rejected by schema validation
- Payment of 0.001 USDC not provided results in 402 Payment Required response
- Cloudflare Worker cold-start or quota exhaustion may cause transient failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "btu",
"from": "calorie",
"value": 123.45,
"converted": 0.489561570335209,
"dimension": "energy",
"precision": "IEEE-754 double"
}
}Tags
x402
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