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SignalDesk AI Circle Math
x402
SignalDesk AI Circle Math 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).
Computes the area and circumference of a circle given its radius
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
A JSON object containing two floating-point numbers: 'area' (the area of the circle, π × r²) and 'circumference' (the perimeter of the circle, 2π × r).
Example use cases
Quick circle area lookup
“What's the area and circumference of a circle with a radius of 3.5?”
Engineering pipe sizing estimate
“I need the cross-sectional area of a circle with a radius of 250 to check if it fits our pipe spec.”
Garden irrigation planning
“Can you figure out the area covered by a circular sprinkler with a radius of 15 feet?”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/math/circle?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, reliable, paid-on-demand API call to compute circle area and circumference without implementing the math locally — useful in agent pipelines where deterministic arithmetic is offloaded to a verifiable external service.
Side effects
- Missing or non-numeric radius returns a validation error
- Radius below 0 or above 1,000,000,000,000,000 is rejected due to schema constraints
- Payment of 0.001 USDC not provided results in a 402 Payment Required response
- Malformed JSON body may return a 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| radius | number | Non-negative number. |
Output
Schema · Response
{
"type": "json",
"example": {
"area": 12.56637061435917,
"circumference": 12.56637061435917
}
}Tags
x402
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