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Delx Commerce — Experiment Lift Calculator
x402
Delx Commerce — Experiment Lift Calculator is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).
Computes descriptive lift metrics (absolute, relative, and rate-based) for an A/B experiment given control and treatment visitor/conversion counts.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with the schema 'delx/util-experiment-lift/v1' containing: control_rate_percent, treatment_rate_percent, absolute_lift_points (percentage point difference), relative_lift_percent (percentage improvement over control), and an advisory note recommending formal statistical testing before making decisions.
Example use cases
Landing page A/B test analysis
“My landing page test just finished: control had 8,500 visitors with 425 conversions, treatment had 8,200 visitors with 492 conversions — what's the absolute and relative lift?”
Email campaign variant lift check
“I ran two versions of an email campaign — the original got 3,200 opens and 160 clicks, the new version got 3,100 opens and 202 clicks. How much lift did the new version achieve?”
Checkout flow experiment review
“We tested a new checkout flow: the old one had 5,000 visitors and 350 completions, the new one had 5,200 visitors and 416 completions. Can you give me the conversion rate lift metrics?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/experiment-lift?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, pay-per-call descriptive lift computation for an A/B experiment without setting up an account or subscription. It is ideal for agents that need on-demand experiment metrics as part of an automated analytics workflow. It does not perform statistical significance testing — pair it with a hypothesis test endpoint if you need p-values or confidence intervals.
Side effects
- Missing required fields (control_visitors, treatment_visitors, control_conversions, treatment_conversions) returns an error
- Zero visitors in control or treatment causes division-by-zero or invalid computation
- Non-numeric or negative values for visitor/conversion counts may return validation errors
- Conversions exceeding visitors for either group is logically invalid and may return an error
- Payment failure via x402 (insufficient USDC balance) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| control_visitors | number | Input field: control_visitors. |
| treatment_visitors | number | Input field: treatment_visitors. |
| control_conversions | number | Input field: control_conversions. |
| treatment_conversions | number | Input field: treatment_conversions. |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-experiment-lift/v1",
"advisory": "Descriptive lift only; pre-register and run a statistical test before deciding.",
"absolute_lift_points": 1.5,
"control_rate_percent": 5,
"relative_lift_percent": 30,
"treatment_rate_percent": 6.5
}
}Tags
x402
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