# Trading Journal Observations — Duplicate Key Report + Secondary-Measure Weighted Mean

> Trading Journal Observations — Duplicate Key Report + Secondary-Measure Weighted Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-26).

Analyzes up to 200 trading journal rows to produce a duplicate key report and a weighted mean for a chosen price field (entry_price or exit_price).

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-finance-09-067?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-26
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/trading-journal-observations-duplicate-key-report-secondary-measure-f5269d16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rOiD5KSJDBS8aVC6rJQ95

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 trading-journal-observations-duplicate-key-report-secondary-measure-f5269d16 -d '<json body>'
```

Example prompt: Can you check my trading journal for duplicate row keys and also compute the weighted mean of entry_price? Here are the records: row-1 2026-10-01 group-a entry 10 exit 1, row-2 2026-10-02 group-b entry 20 exit 2, row-3 2026-10-03 group-a entry 15 exit 3.

## When to prefer this

Choose this endpoint when you need a lightweight, low-cost ($0.01 USDC) offline analysis of trading journal data — specifically when you want both a duplicate key audit and a weighted mean statistic in a single call without any live market data, predictions, or external API dependencies. Ideal for pre-reconciliation data quality checks or batch statistical summarization of up to 200 trade records.

## Known failure modes

- Exceeding 200 rows causes rejection or truncation
- Missing required fields (row_id, instrument_group, date, entry_price, exit_price) causes validation error
- Invalid date format (not YYYY-MM-DD) triggers schema validation failure
- Null values in the selected price field may affect weighted mean computation
- row_id values longer than 80 characters are rejected
- Price values outside ±1,000,000,000,000 are rejected

## How this service works

Trading journal observations — Duplicate key report + Secondary-measure weighted mean: Duplicate key report + Secondary-measure weighted mean for supplied trading journal observations records (entry_price, exit_price). 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 reports: (1) a duplicate key report identifying rows with repeated key combinations among row_id, instrument_group, and date fields; (2) a secondary-measure weighted mean computed over the selected price field (entry_price or exit_price) across the supplied rows. Both reports are computed locally without external lookups.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trading-journal-observations-duplicate-key-report-secondary-measure-f5269d16/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)