# DealPulse Cashback Stack Optimizer

> 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 2026-09-13).

Builds the optimal savings stack for a purchase by layering shopping-portal cashback, credit-card rewards, coupon codes, and loyalty points together

## Facts

- Endpoint: GET https://dealpulse.theaslangroupllc.com/api/deals/stack
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dealpulse-cashback-stack-optimizer-8a4e018f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Z_4hkoXj4ZzSQUTBuizqt

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dealpulse-cashback-stack-optimizer-8a4e018f
```

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?

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "lang": {
   "type": "string",
   "description": "lang"
  },
  "query": {
   "type": "string",
   "description": "query"
  },
  "retailer": {
   "type": "string",
   "description": "retailer"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dealpulse-cashback-stack-optimizer-8a4e018f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dealpulse.theaslangroupllc.com](https://www.zero.xyz/host/dealpulse.theaslangroupllc.com/llms.txt)