# Ni Biashara FX Parallel Rate History (24h)

> Ni Biashara FX Parallel Rate History (24h) is a paid API for AI agents from agents.nibiashara.biz, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).

Returns a 24-hour time series of parallel/street USD-NGN or USD-GHS exchange rates, including spread percentages, derived from live P2P order books.

## Facts

- Endpoint: GET https://agents.nibiashara.biz/shelf/fx-parallel-history-24h
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ni-biashara-fx-parallel-rate-history-24h-c4fea2fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TanxaiPTAMDyO-cYqpKNR

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 ni-biashara-fx-parallel-rate-history-24h-c4fea2fd
```

Example prompt: Pull the 24-hour parallel rate history for USD-NGN from Ni Biashara — I want to see how the street dollar rate and the spread have moved today.

## When to prefer this

Choose this endpoint when you need historical intraday context on African parallel/street FX rates rather than just a current snapshot. It is specifically useful for volatility analysis, timing remittances, auditing pricing decisions against informal market rates, or building charts of how the spread between official and street rates has evolved over 24 hours. Prefer over single-rate snapshot endpoints when trend data matters.

## Known failure modes

- Missing or invalid 'pair' query parameter returns an error — only USD-NGN and USD-GHS are supported
- Upstream P2P order book data unavailable may result in empty or partial time series
- Payment of $0.25 USDC not completed via x402 protocol returns a 402 Payment Required response
- Rate limiting or service unavailability returns a 5xx error

## How this service works

Structured African-currency FX data (official + parallel/street rates from live P2P order books, with history) and business services (Swahili localization, design, consulting, landing pages), sold per call to AI agents. Ni Biashara LLC, Dallas TX.

## Output

A JSON array of time-stamped data points covering the past 24 hours for the requested pair (USD-NGN or USD-GHS), each point containing the parallel mid-rate, the spread percentage versus the official rate, and a UTC capture timestamp. Also includes the pair name and the window label '24h'.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "pair"
     ],
     "properties": {
      "pair": {
       "type": "string",
       "description": "USD-NGN or USD-GHS (required)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "pair": "USD-NGN",
  "points": [
   {
    "spread_pct": 3.2,
    "captured_at": "2026-08-22T00:00:00Z",
    "parallel_mid": 1389.1
   }
  ],
  "window": "24h"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ni-biashara-fx-parallel-rate-history-24h-c4fea2fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.nibiashara.biz](https://www.zero.xyz/host/agents.nibiashara.biz/llms.txt)