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Circle Geometry Calculator
x402
Circle Geometry Calculator is a paid API for AI agents from geometry.openverbs.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).
Computes the diameter, circumference, and area of a circle given its radius.
Price / call$0.004
Success—
StatusUnknown
How this service works
Diameter, circumference and area of a circle from its radius.
Output
Returns the diameter (2r), circumference (2πr), and area (πr²) of the circle corresponding to the provided radius, as numeric values.
Example use cases
Irrigation coverage area planning
“I need to know the area and circumference of a circular irrigation zone with a radius of 25 meters — can you calculate that for me?”
Round tabletop material estimate
“I'm making a circular tabletop with a radius of 0.6 meters. What's the area and circumference so I can figure out how much material I need?”
Children's math homework helper
“My kid needs to find the diameter, circumference, and area of a circle whose radius is 4 inches for their homework — can you work that out?”
Technical details
Endpoint
POSThttps://geometry.openverbs.com/v1/circleWhen to prefer
Use this endpoint when you need a quick, reliable server-side computation of standard circle properties (diameter, circumference, area) from a radius without implementing the math locally. Ideal for agents that need verified geometric results for downstream calculations, reports, or user-facing answers. Part of a broader geometry suite if you also need rectangle, triangle, polygon, or distance computations.
Side effects
- Radius of zero or negative value returns a validation error (radius must be strictly positive)
- Non-numeric radius input returns a schema validation error
- Missing radius field returns a required field error
- Payment failure or insufficient funds returns a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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