Parallel-rate history — last 24 hours, hourly

Hourly parallel mid/buy/sell, spread and depth for one pair from Ni Biashara's own order-book archive. Nobody else records this.

$0.25 per call — paid in USDC on Base over the x402 protocol, settled by Coinbase. No API key, no signup.

Parameters

Call it (any x402 client)

# 1. GET without payment → HTTP 402 with PAYMENT-REQUIRED (price, payTo, scheme "exact")
curl -i "https://ai-money-endpoint.nibiashara.workers.dev/shelf/fx-parallel-history-24h?pair=USD-NGN"

# 2. Sign the payment (EIP-3009 transferWithAuthorization, gasless) and retry
#    with the PAYMENT-SIGNATURE header → response body is the delivery.

With the official JS client the whole flow is one wrapped fetch:

import { wrapFetchWithPayment } from "@x402/fetch";       // npm i @x402/fetch @x402/evm
const fetchPaid = wrapFetchWithPayment(fetch, { /* your EVM signer */ });
const res = await fetchPaid("https://ai-money-endpoint.nibiashara.workers.dev/shelf/fx-parallel-history-24h?pair=USD-NGN");
const data = await res.json();

Or install the MCP server (https://ai-money-endpoint.nibiashara.workers.dev/mcp, registry id biz.nibiashara/shelves) and use the job-named tool for this shelf, or buy_shelf as an escape hatch.

Example response

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

Delivers

JSON { pair, window: '24h', points[] }

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