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ONE Engine Cumulative Sum
x402
ONE Engine Cumulative Sum is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).
Computes the cumulative (running) sum of an array of numbers, with optional scaling, offset, and range constraints.
Price / call$0.004
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns a JSON object containing the cumulative (running) sum array computed from the input values, with optional scaling factor, offset, digit rounding, and min/max clamping applied to each element in the output sequence.
Example use cases
Running total for financial ledger
“I have a list of daily expense amounts — [45.5, 120, 33.2, 87.6, 210] — please calculate the cumulative running sum so I can see how spending has accumulated day by day.”
Prefix sums for algorithm preprocessing
“I need prefix sums for this array of integers: [3, 7, 2, 9, 5, 11, 4] — can you compute the cumulative sum, rounding results to 2 decimal digits?”
Sensor data accumulation with scaling
“Take these sensor readings — [0.5, 1.2, 0.8, 2.1, 1.7] — and give me the cumulative sum scaled by a factor of 100 and offset by 0, so I can track total accumulated signal strength.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/numeric/cumulative-sum/t6?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, cheap, pay-per-call cumulative sum computation with optional parameter controls (scaling, offset, clamping, rounding) without setting up your own compute infrastructure. Ideal for autonomous agents needing on-demand mathematical transformation of numeric sequences at $0.004 USDC per call.
Side effects
- Input array exceeds 1000 elements — request rejected
- Non-finite numbers (NaN, Infinity) in the values array — validation error
- Missing required 'values' field — 400 bad request
- Payment failure via x402 — 402 Payment Required
- Empty array input — may return empty result or error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| max | number | |
| min | number | |
| size | integer | |
| digits | integer | |
| factor | number | |
| offset | number | |
| valuesrequired | array | Finite numbers, maximum 1000 |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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