# Survey Participation Analyzer — Equal-Width Histogram + Date by Category Pivot

> Survey Participation Analyzer — Equal-Width Histogram + Date by Category Pivot is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-02).

Generates two analytical reports from survey participation data: an equal-width histogram of respondents or invitations, and a date-by-category pivot table, for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-education-10-173?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/survey-participation-analyzer-equal-width-histogram-date-by-category-b2af012d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YDtmXgTHOus835u6k-Q5e

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 survey-participation-analyzer-equal-width-histogram-date-by-category-b2af012d -d '<json body>'
```

Example prompt: Analyze this survey participation dataset with 5 bins on the respondents field — I have 4 rows: row-1 on 2026-10-01 for group-a with 10 respondents and 1 invitation, row-2 on 2026-10-02 for group-b with 20 respondents and 2 invitations, row-3 on 2026-10-03 for group-a with 15 respondents and 3 invitations, and row-4 on 2026-10-04 for group-b with 30 respondents and 4 invitations. Give me the equal-width histogram and the date-by-category pivot.

## When to prefer this

Choose this endpoint when you need to run two complementary statistical views — a frequency histogram and a date-by-category pivot — on survey participation data (respondents and invitations) in a single call, without needing live data lookups or external integrations. It is ideal for education or training analytics use cases with up to 200 rows and where a flat per-call cost of $0.01 USDC is acceptable.

## Known failure modes

- More than 200 rows submitted — request rejected or truncated
- Invalid date format (not YYYY-MM-DD) causes row parsing failure
- bins value outside 1–30 range returns validation error
- Missing required row fields (row_id, course_group, date, respondents, invitations) causes row rejection
- Null numeric values may reduce histogram accuracy
- Payment of 0.01 USDC not completed — request blocked

## How this service works

Survey participation — Equal-width histogram + Date by category pivot: Equal-width histogram + Date by category pivot for supplied survey participation records (respondents, invitations). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

## Output

Returns two independent analytical reports: (1) an equal-width histogram showing the frequency distribution of the selected field (respondents or invitations) divided into the specified number of bins, and (2) a date-by-category pivot table showing the selected metric broken down by date and course group. Both reports are computed locally from the supplied rows with no external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "bins": {
   "type": "integer",
   "default": 5,
   "maximum": 30,
   "minimum": 1
  },
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "course_group",
     "date",
     "respondents",
     "invitations"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "invitations": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "respondents": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "course_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "invitations": 1,
     "respondents": 10,
     "course_group": "group-a"
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "invitations": 2,
     "respondents": 20,
     "course_group": "group-b"
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "invitations": 3,
     "respondents": 15,
     "course_group": "group-a"
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "invitations": 4,
     "respondents": 30,
     "course_group": "group-b"
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "respondents",
    "invitations"
   ],
   "type": "string",
   "default": "respondents"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/survey-participation-analyzer-equal-width-histogram-date-by-category-b2af012d/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)