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DealPulse Cashback Stacking Optimizer
x402
DealPulse Cashback Stacking Optimizer is a paid API for AI agents from dealpulse-weld.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Maximizes total savings on a purchase by layering portal cashback, credit card rewards, coupons, and loyalty points together
Price / call$0.1
Success—
StatusUnknown
How this service works
Cashback stacking / maximize savings / stack coupons and rewards at a store. Builds the optimal savings stack by layering shopping-portal cashback (Rakuten, etc.), credit-card rewards, coupon codes, and loyalty points for a purchase. For savings and rewards agents.
Output
A breakdown of the optimal layered savings strategy showing which portal cashback, credit card rewards, coupon codes, and loyalty points to combine, with the total savings amount and percentage off the purchase.
Example use cases
Optimize savings on grocery shopping
“I'm about to spend $200 at Whole Foods this week. Can you layer together the Amex cashback portal, my Amazon Prime card rewards, any current grocery coupons, and my Prime member benefits to show me the best combination and total savings?”
Maximize rewards on vacation hotel booking
“I'm booking a $2,500 hotel stay for next month. Stack the hotel booking portal cashback, my hotel loyalty points, my Visa card rewards, and any promo codes together to find the optimal way to save and tell me the final amount back.”
Layer deals for electronics purchase
“I want to buy a $800 laptop and need to combine every discount available. Show me how to stack the tech retailer cashback portals, my credit card rewards, any manufacturer coupons, and my retailer membership benefits to get the maximum total savings.”
Technical details
Endpoint
GEThttps://dealpulse-weld.vercel.app/api/deals/stackWhen to prefer
Use this endpoint when a user wants to maximize total savings by combining multiple discount mechanisms simultaneously — specifically when portal cashback, card rewards, coupons, and loyalty points all apply to the same purchase. Prefer this over single-method endpoints (coupon finder, card optimizer, or price comparison alone) when the goal is holistic savings stacking rather than finding just one type of deal.
Side effects
- Retailer not supported — no cashback or coupon data available for that store
- Invalid or expired coupon codes passed in the request
- Card type not recognized — cannot compute card rewards
- No stackable deals found — returns empty or minimal savings combination
- Rate limit or payment failure for the $0.1 USDC per call fee
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| lang | string | lang |
| query | string | query |
| retailer | string | retailer |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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