# Supplied-Rate Currency Conversion Benchmark Correlation Calculator

> Supplied-Rate Currency Conversion Benchmark Correlation Calculator is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).

Calculates Pearson correlation between user-supplied currency conversion data (source amounts and exchange rates) and user-provided benchmark values, returning a statistical report with formula, units, and limitations.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-finance-fx-conversion-correlation?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/supplied-rate-currency-conversion-benchmark-correlation-calculator-ad9d4364
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DtE9TlWtGe-0a0nzouF3T

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 supplied-rate-currency-conversion-benchmark-correlation-calculator-ad9d4364 -d '<json body>'
```

Example prompt: I have 4 rows of EUR-to-USD conversion data — source amounts of 100, 110, 100, 110 with rates of 1.25, 1.375, 1.25, 1.375 — and benchmarks of 10, 20, 30, 40. Can you calculate the Pearson correlation between my FX conversion figures and those benchmarks and give me the report with the formula and limitations?

## When to prefer this

Choose this endpoint when you have user-supplied currency conversion data (source amounts and exchange rates) and want a simple, bounded Pearson correlation coefficient against a reference benchmark series — without needing live FX feeds, financial advice, or trade execution. It is ideal for offline statistical validation, backtesting alignment checks, or research reporting where all data is already in hand.

## Known failure modes

- Mismatched array lengths between rows and benchmarks returns an error
- Fewer than 2 data points in rows or benchmarks causes validation failure
- Exchange rate of zero or negative value rejected (exclusiveMinimum: 0)
- Source amounts or rates exceeding 1,000,000,000,000 cause validation error
- Malformed JSON input returns 400-level error
- Payment of 0.01 USDC not processed results in 402 Payment Required

## How this service works

Supplied-rate currency conversion - Benchmark correlation: Calculate Pearson correlation against aligned supplied benchmarks; no causal or predictive claim. Metric: Supplied-rate currency conversion. 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 benchmark correlation report.

## Output

A JSON object containing the Pearson correlation coefficient computed between the supplied FX conversion data rows and the aligned benchmark values, along with the mathematical formula used, units description, and a clear statement of limitations (no causal or predictive claims, no live data).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "source_amount",
     "target_per_source_rate"
    ],
    "properties": {
     "source_amount": {
      "type": "number",
      "default": 100,
      "maximum": 1000000000000,
      "minimum": -1000000000000,
      "description": "Amount in a consistent supplied currency and reporting period"
     },
     "target_per_source_rate": {
      "type": "number",
      "default": 1.25,
      "maximum": 1000000000000,
      "minimum": 0,
      "description": "Amount in a consistent supplied currency and reporting period",
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "source_amount": 100,
     "target_per_source_rate": 1.25
    },
    {
     "source_amount": 110.00000000000001,
     "target_per_source_rate": 1.375
    },
    {
     "source_amount": 100,
     "target_per_source_rate": 1.25
    },
    {
     "source_amount": 110.00000000000001,
     "target_per_source_rate": 1.375
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "benchmarks": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 1000000000000000000,
    "minimum": -1000000000000000000
   },
   "default": [
    10,
    20,
    30,
    40
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/supplied-rate-currency-conversion-benchmark-correlation-calculator-ad9d4364/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)