# Checkout Payment Failure Share - Before and After Comparison

> Checkout Payment Failure Share - Before and After Comparison is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Compares checkout payment failure rates between two periods, reporting absolute and relative changes in failure share.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-retail-checkout-payment-failure-compare?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/checkout-payment-failure-share-before-and-after-comparison-8c414eac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DQaa_0BReFsoVN-wBJdac

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 checkout-payment-failure-share-before-and-after-comparison-8c414eac -d '<json body>'
```

Example prompt: Compare my checkout payment failure rate before and after a recent change — before I had 100 payment attempts with 4 failures, and after I had 110 attempts with 4.4 failures. Give me a before-and-after report showing how the failure share changed.

## When to prefer this

Choose this endpoint when you need a quick, cost-effective ($0.01 USDC) structured comparison of checkout payment failure rates between two distinct periods using only supplied retail figures — no platform access, live rates, or order execution required. Ideal for reporting, audits, and post-change analysis where you already have aggregated before/after counts.

## Known failure modes

- payment_attempts must be greater than 0 (exclusiveMinimum) — submitting 0 will fail validation
- failed_attempts exceeding payment_attempts may produce nonsensical failure share above 100%
- missing required fields (payment_attempts or failed_attempts) in either before or after object will cause a validation error
- payment amounts or attempt counts outside the allowed range (0 to 1,000,000,000,000) will be rejected

## How this service works

Checkout payment failure share - Before and after comparison: Before and after comparison for Checkout payment failure share. Supplied retail figures only, up to 200 records. No platform access, live rates or order execution. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded before and after comparison report.

## Output

A bounded comparison report (up to 200 records) showing the checkout payment failure share for the 'before' period and the 'after' period, along with absolute and relative changes in failure share, based on supplied retail figures only.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "after": {
   "type": "object",
   "default": {
    "failed_attempts": 4.4,
    "payment_attempts": 110.00000000000001
   },
   "required": [
    "payment_attempts",
    "failed_attempts"
   ],
   "properties": {
    "failed_attempts": {
     "type": "number",
     "default": 4,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "payment_attempts": {
     "type": "number",
     "default": 100,
     "maximum": 1000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  },
  "before": {
   "type": "object",
   "default": {
    "failed_attempts": 4,
    "payment_attempts": 100
   },
   "required": [
    "payment_attempts",
    "failed_attempts"
   ],
   "properties": {
    "failed_attempts": {
     "type": "number",
     "default": 4,
     "maximum": 1000000000000,
     "minimum": 0
    },
    "payment_attempts": {
     "type": "number",
     "default": 100,
     "maximum": 1000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/checkout-payment-failure-share-before-and-after-comparison-8c414eac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)