# Deflator-Adjusted GDP Before-and-After Comparison

> Deflator-Adjusted GDP Before-and-After Comparison is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-23).

Compares two supplied nominal GDP and deflator records, computing real GDP for each and returning absolute and relative changes with formula, units, and limitations.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-finance-real-gdp-compare?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/deflator-adjusted-gdp-before-and-after-comparison-f255119d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VcEwGLwBsMESBEKzZpRYw

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 deflator-adjusted-gdp-before-and-after-comparison-f255119d -d '<json body>'
```

Example prompt: Compare these two GDP records for me: before, nominal GDP was 1200 and the deflator (base 100) was 120; after, nominal GDP is 1320 and the deflator is 132 — give me the real GDP values and the absolute and relative changes.

## When to prefer this

Choose this endpoint when you have two specific nominal GDP and deflator data points and need a structured, formula-documented comparison of real GDP between them. It is ideal for verifying GDP growth claims, comparing economic periods, or preparing a report on inflation-adjusted output change using your own data. Prefer it over generic calculation tools when you need explicit formula documentation and units returned alongside the result.

## Known failure modes

- Missing required fields (nominal_gdp or deflator_base_100 for either before or after) returns a validation error
- Deflator value of zero or below is rejected (exclusiveMinimum:0) to prevent division-by-zero
- Values exceeding 1,000,000,000,000 are rejected as out-of-range
- No live or external data is fetched; incorrect user-supplied figures will produce incorrect but internally consistent results
- Relative change may not be reported if the before real GDP is zero

## How this service works

Deflator-adjusted GDP - Before and after comparison: Compare two supplied records, reporting absolute and eligible relative changes. Metric: Deflator-adjusted GDP. 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 before and after comparison report.

## Output

A JSON object containing the calculated real GDP for the 'before' and 'after' records, the absolute change, the eligible relative (percentage) change, the formula used, units, and any limitations on interpretation — all derived exclusively from the supplied figures.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "after": {
   "type": "object",
   "default": {
    "nominal_gdp": 1320,
    "deflator_base_100": 132
   },
   "required": [
    "nominal_gdp",
    "deflator_base_100"
   ],
   "properties": {
    "nominal_gdp": {
     "type": "number",
     "default": 1200,
     "maximum": 1000000000000,
     "minimum": 0,
     "description": "Amount in a consistent supplied currency and reporting period"
    },
    "deflator_base_100": {
     "type": "number",
     "default": 120,
     "maximum": 1000000000000,
     "minimum": 0,
     "description": "Amount in a consistent supplied currency and reporting period",
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  },
  "before": {
   "type": "object",
   "default": {
    "nominal_gdp": 1200,
    "deflator_base_100": 120
   },
   "required": [
    "nominal_gdp",
    "deflator_base_100"
   ],
   "properties": {
    "nominal_gdp": {
     "type": "number",
     "default": 1200,
     "maximum": 1000000000000,
     "minimum": 0,
     "description": "Amount in a consistent supplied currency and reporting period"
    },
    "deflator_base_100": {
     "type": "number",
     "default": 120,
     "maximum": 1000000000000,
     "minimum": 0,
     "description": "Amount in a consistent supplied currency and reporting period",
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/deflator-adjusted-gdp-before-and-after-comparison-f255119d/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)