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Grades & Study Calc – Grade Curve
x402
Grades & Study Calc – Grade Curve is a paid API for AI agents from grades-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).
Curves a set of test scores using add-points, scale-to-top, or square-root method, returning original and adjusted scores with before/after averages.
Price / call$0.02
Success—
StatusUnknown
How this service works
Curve test scores by adding points, scaling so the top score is 100, or the square-root method, with before and after averages.
Output
Returns a list of each score's original value, curved value, and change; plus the class average and highest score before and after curving, the method used, and whether results were capped at 100.
Example use cases
Curve midterm scores for a class
“I have midterm scores of 55, 60, 68, 73, 79, 85, 92 and I want to curve them by adding 8 points to each — can you show me the original and adjusted scores and what happens to the class average?”
Scale-to-top normalization for a hard exam
“My students got 44, 51, 60, 67, 78, 88 on a really tough exam — can you scale them so the highest score becomes 100 and tell me the new class average?”
Square-root curve for fair grading
“Apply a square-root curve to these scores: 36, 49, 64, 72, 81, 90 and show me how each score changes along with the before and after averages.”
Technical details
Endpoint
GEThttps://grades-calc.x402tookit.com/grade-curve?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to mathematically curve a batch of raw test scores using one of three standard academic curving methods and want to see both individual adjustments and aggregate statistics (before/after averages). Prefer this over manual calculation when dealing with up to 200 scores at once.
Side effects
- Missing required 'scores' or 'method' query parameter returns an error
- Invalid method string (not 'add', 'scale-to-top', or 'sqrt') returns a validation error
- More than 200 scores provided may be rejected
- Non-numeric or malformed score values cause a parse error
- Payment failure (402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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