# Staking Rewards — Duplicate Key Report + Category Frequencies

> Staking Rewards — Duplicate Key Report + Category Frequencies is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Analyzes up to 200 staking reward records to produce a duplicate key report and category frequency counts for reward_units and staked_units fields.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-finance-15-057?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/staking-rewards-duplicate-key-report-category-frequencies-7fef5f5c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XNeGFZTKoYMlj443qaDwW

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 staking-rewards-duplicate-key-report-category-frequencies-7fef5f5c -d '<json body>'
```

Example prompt: Check my staking rewards records for duplicate row IDs and give me a frequency breakdown by instrument_group — here are 4 rows: row-1 on 2026-10-01 for group-a with reward_units 10 and staked_units 1, row-2 on 2026-10-02 for group-b with 20 and 2, row-3 on 2026-10-03 for group-a with 15 and 3, and row-4 on 2026-10-04 for group-b with 30 and 4.

## When to prefer this

Choose this endpoint when you need fast, local analytical processing of staking reward records — specifically to detect duplicate row keys and compute category frequency distributions across instrument groups. It is ideal for data quality audits of up to 200 staking records without needing external lookups, predictions, or live market data. Prefer it over general-purpose analytics when the data is structured around reward_units and staked_units fields and you need both a deduplication check and a grouped count in one call.

## Known failure modes

- Empty or missing rows array returns validation error
- More than 200 rows submitted exceeds maxItems limit
- row_id missing or empty string violates minLength constraint
- date field not matching YYYY-MM-DD pattern causes schema rejection
- reward_units or staked_units outside ±1,000,000,000,000 range rejected
- Payment of 0.01 USDC not fulfilled results in 402 response

## How this service works

Staking supplied rewards — Duplicate key report + Category frequencies: Duplicate key report + Category frequencies for supplied staking supplied rewards records (reward_units, staked_units). 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) a duplicate key report identifying which row_ids appear more than once in the submitted dataset, and (2) category frequency counts showing how many records fall into each instrument_group value, covering up to 200 input rows.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/staking-rewards-duplicate-key-report-category-frequencies-7fef5f5c/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)