# Marketing Contribution Return – Distribution Summary

> Marketing Contribution Return – Distribution Summary is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Summarises up to 200 marketing contribution return observations into a statistical distribution report with quantiles and population standard deviation.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-finance-marketing-return-summary?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/marketing-contribution-return-distribution-summary-1c0f2b7b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rnGcYFisbuf8-734_JhKZ

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 marketing-contribution-return-distribution-summary-1c0f2b7b -d '<json body>'
```

Example prompt: I have 12 months of marketing data — each month has a marketing spend and an attributed contribution amount. Can you summarise the distribution of the marketing contribution return across all those observations, including quantiles and population standard deviation?

## When to prefer this

Choose this endpoint when you need to characterise the statistical spread of marketing contribution return across a batch of 2–200 observations, rather than computing a single value. It is ideal for period-over-period analysis, campaign benchmarking, or any scenario where understanding variability and percentile distribution of marketing returns matters more than a single point estimate.

## Known failure modes

- Fewer than 2 rows supplied — minimum requirement not met, returns validation error
- More than 200 rows supplied — exceeds maximum, returns error
- marketing_spend is zero or negative — exclusiveMinimum violation, returns validation error
- attributed_contribution or marketing_spend exceeds allowable range — returns validation error
- Malformed JSON input — returns parse error
- Missing required fields per row — returns schema validation error

## How this service works

Marketing contribution return - Distribution summary: Summarise up to 200 calculated observations with quantiles and population standard deviation. Metric: Marketing contribution return. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded distribution summary report.

## Output

Returns a JSON object containing a distribution summary of calculated marketing contribution return values across the supplied observations, including quantiles (e.g. 25th, 50th, 75th percentile), population standard deviation, the formula used, the units, and any limitations of the calculation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "attributed_contribution",
     "marketing_spend"
    ],
    "properties": {
     "marketing_spend": {
      "type": "number",
      "default": 5000,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period",
      "exclusiveMinimum": 0
     },
     "attributed_contribution": {
      "type": "number",
      "default": 8000,
      "maximum": 1000000000000,
      "minimum": -1000000000000,
      "description": "Amount in a consistent supplied currency and reporting period"
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "marketing_spend": 5000,
     "attributed_contribution": 8000
    },
    {
     "marketing_spend": 5500,
     "attributed_contribution": 8800
    },
    {
     "marketing_spend": 5000,
     "attributed_contribution": 8000
    },
    {
     "marketing_spend": 5500,
     "attributed_contribution": 8800
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/marketing-contribution-return-distribution-summary-1c0f2b7b/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)