# Social Post Observations — Adjacent Row Changes + Keyed Dataset Comparison

> Social Post Observations — Adjacent Row Changes + Keyed Dataset Comparison is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).

Runs two analytical reports on social post observation data: adjacent row change detection and keyed dataset comparison for impressions or engagement_count across up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-news-13-161?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/social-post-observations-adjacent-row-changes-keyed-dataset-comparison-f8bf23f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DhcMeQ345D9ejPXtJZSqN

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 social-post-observations-adjacent-row-changes-keyed-dataset-comparison-f8bf23f6 -d '<json body>'
```

Example prompt: Take my two sets of social post data — each up to 200 rows with impressions and engagement_count by channel_group and date — and run both an adjacent row change analysis and a keyed dataset comparison on the impressions field.

## When to prefer this

Choose this endpoint when you need to analyze sequential row-to-row changes AND compare two keyed social post datasets in a single paid call. It is purpose-built for social post observations with impressions and engagement_count fields, processing everything locally without external data lookups or predictions — ideal for auditing campaign data snapshots or detecting anomalies in social metrics across time periods.

## Known failure modes

- More than 200 rows submitted — request rejected or truncated
- Missing required fields (row_id, channel_group, date, impressions, engagement_count) — validation error
- Date field not matching YYYY-MM-DD format — schema validation failure
- Invalid field enum value (not 'impressions' or 'engagement_count') — rejected
- Mismatched row_ids between primary and comparison datasets — keyed comparison may yield empty or partial results
- Payment not included or insufficient — 402 response requiring 0.01 USDC

## How this service works

Social post observations — Adjacent row changes + Keyed dataset comparison: Adjacent row changes + Keyed dataset comparison for supplied social post observations records (impressions, engagement_count). 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 adjacent row change report showing how impressions or engagement_count shifts between consecutive rows, and (2) a keyed dataset comparison report matching rows by row_id between the two supplied datasets and surfacing differences — all computed locally without external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "channel_group",
     "date",
     "impressions",
     "engagement_count"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "impressions": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "channel_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "engagement_count": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "impressions": 10,
     "channel_group": "group-a",
     "engagement_count": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "impressions": 20,
     "channel_group": "group-b",
     "engagement_count": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "impressions": 15,
     "channel_group": "group-a",
     "engagement_count": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "impressions": 30,
     "channel_group": "group-b",
     "engagement_count": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "impressions",
    "engagement_count"
   ],
   "type": "string",
   "default": "impressions"
  },
  "other": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "channel_group",
     "date",
     "impressions",
     "engagement_count"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "impressions": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "channel_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "engagement_count": {
      "type": [
       "number",
       "nul
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/social-post-observations-adjacent-row-changes-keyed-dataset-comparison-f8bf23f6/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)