# GDP Implicit Price Deflator – Ordered Trend Analysis

> GDP Implicit Price Deflator – Ordered Trend Analysis 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).

Fits a descriptive linear (straight-line) trend to a user-supplied sequence of GDP implicit price deflator observations and returns the trend formula, units, and limitations as JSON.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-finance-gdp-deflator-trend?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/gdp-implicit-price-deflator-ordered-trend-analysis-19287c76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Qg5ETqP6NmNry_KXeAhbn

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 gdp-implicit-price-deflator-ordered-trend-analysis-19287c76 -d '<json body>'
```

Example prompt: Fit a straight-line trend to these 6 quarterly GDP observations — nominal GDP values of 1200, 1320, 1450, 1580, 1700, 1850 and real GDP values of 1000, 1100, 1150, 1200, 1250, 1300 — and give me the trend formula and slope for the implicit price deflator.

## When to prefer this

Choose this endpoint when you need a fast, bounded, descriptive linear trend fit specifically on GDP implicit price deflator data derived from user-supplied nominal and real GDP pairs, with no need for live data feeds, forecasting, or financial advice. It is ideal for academic analysis, report generation, or macro research pipelines where you supply your own historical observations (up to 200 periods) and want a clean JSON formula output at minimal cost.

## Known failure modes

- Fewer than 2 row objects supplied — minimum rows not met, request rejected
- More than 200 row objects supplied — exceeds maximum, request rejected
- Zero or negative nominal_gdp or real_gdp values — schema violations cause validation error
- Missing required fields nominal_gdp or real_gdp in any row — request fails validation
- All deflator values identical (zero variance) — trend slope returns zero, formula still valid but degenerate

## How this service works

GDP implicit price deflator - Ordered trend analysis: Fit a descriptive straight-line trend to up to 200 equally spaced supplied observations; no forecast. Metric: GDP implicit price deflator. 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 ordered trend analysis report.

## Output

A JSON object containing the fitted linear trend formula (slope and intercept), the metric label (GDP implicit price deflator), units, and a limitations section noting that this is a descriptive in-sample trend fit with no forecasting capability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "nominal_gdp",
     "real_gdp"
    ],
    "properties": {
     "real_gdp": {
      "type": "number",
      "default": 1000,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period",
      "exclusiveMinimum": 0
     },
     "nominal_gdp": {
      "type": "number",
      "default": 1200,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period",
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "real_gdp": 1000,
     "nominal_gdp": 1200
    },
    {
     "real_gdp": 1100,
     "nominal_gdp": 1320
    },
    {
     "real_gdp": 1000,
     "nominal_gdp": 1200
    },
    {
     "real_gdp": 1100,
     "nominal_gdp": 1320
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gdp-implicit-price-deflator-ordered-trend-analysis-19287c76/health.json
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