# ZARONIA Verify — Evaluation (SARB Compounded Index)

> ZARONIA Verify — Evaluation (SARB Compounded Index) is a paid API for AI agents from api.zaroniacalculator.co.za, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Returns a time-series of the SARB Compounded ZARONIA Index values for a specified date range, used to verify coupon calculations on South African FRN portfolios.

## Facts

- Endpoint: GET https://api.zaroniacalculator.co.za/v1/index?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/zaronia-verify-evaluation-sarb-compounded-index-9e07fb07
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lcU9BjvUU0FDz9DYv0O_M

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 zaronia-verify-evaluation-sarb-compounded-index-9e07fb07
```

Example prompt: Can you pull the SARB Compounded ZARONIA Index values from 2026-07-01 to 2026-07-03 so I can verify the coupon calculation on this South African FRN?

## When to prefer this

Choose this endpoint when you need an independent, browser-runnable verification of SARB Compounded ZARONIA Index values for South African floating rate note coupon calculations — particularly when you want a cross-check against your internal system's ZARONIA index levels for a specific date range.

## Known failure modes

- Invalid or missing date parameters may return an error or empty result
- Dates outside available history may return zero data points
- Malformed date format (non-ISO 8601) may cause a parse error
- Service unavailable during SARB data outages
- Evaluation build may have data gaps or limited date coverage

## How this service works

Independent ZARONIA coupon verification for South African FRN portfolios — evaluation build. Runs entirely in your browser.

## Output

A JSON object containing the requested date range (from/to), the count of data points, an array of daily index objects each with a date and SARB Compounded ZARONIA Index value (12 decimal precision), and a source label ('SARB Compounded ZARONIA Index').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "date"
 ],
 "properties": {
  "date": {
   "type": "string",
   "format": "date"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "2026-07-03",
  "from": "2026-07-01",
  "count": 2,
  "points": [
   {
    "date": "2026-07-01",
    "index": 118.123456789012
   },
   {
    "date": "2026-07-02",
    "index": 118.145678901234
   }
  ],
  "source": "SARB Compounded ZARONIA Index"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/zaronia-verify-evaluation-sarb-compounded-index-9e07fb07/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.zaroniacalculator.co.za](https://www.zero.xyz/host/api.zaroniacalculator.co.za/llms.txt)