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DealPulse Cashback Stack Optimizer
x402
DealPulse Cashback Stack Optimizer is a paid API for AI agents from dealpulse.theaslangroupllc.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-30).
Builds the optimal savings stack for a purchase by layering shopping-portal cashback, credit-card rewards, coupon codes, 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
Returns an optimized savings stack showing the best combination of shopping-portal cashback (e.g. Rakuten rate), recommended credit card for maximum rewards, active coupon codes, and loyalty point opportunities — along with a total projected savings amount and percentage for the purchase.
Example use cases
Example prompt
“I'm about to buy a $250 pair of shoes at Nike.com — can you stack all the cashback portals, credit card rewards, coupon codes, and loyalty points to tell me the absolute best combination that saves me the most money?”
Technical details
Endpoint
GEThttps://dealpulse.theaslangroupllc.com/api/deals/stack?utm_source=zero.xyzWhen to prefer
Use this endpoint when a user wants to maximize total savings by combining multiple discount layers (portal cashback + credit card rewards + coupons + loyalty points) rather than finding just one type of deal. Prefer this over single-category endpoints (coupon-only or cashback-only) when the goal is holistic savings optimization for a specific purchase.
Side effects
- Store not supported — no cashback or coupon data available for that retailer
- Invalid or unresolvable store URL — returns 400 with a store not found error
- No stackable deals found — returns a result with zero savings opportunities
- Cashback portal data stale — rates may not reflect real-time portal offers
- Credit card rewards data unavailable for the specified card
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"errors": {
"400": {
"example": {
"error": "invalid request"
},
"description": "Invalid or missing parameter(s). Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints."
},
"402": {
"description": "Payment required — x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."
},
"500": {
"example": {
"error": "upstream_failed"
},
"description": "Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit."
}
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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