Returns historical exchange rate data between NGN and any supported currency pair. Narrow results by currency code, date range, and record count.
Plan required: Starter
Documentation Index
Fetch the complete documentation index at: https://docs.ngnmarket.com/llms.txt
Use this file to discover all available pages before exploring further.
Pass your API key as a Bearer token: Authorization: Bearer ngm_live_YOUR_KEY.
Generate keys at ngnmarket.com/dashboard/developer.
Source currency code (e.g. USD, EUR, GBP). Defaults to USD.
"USD"
Target currency code. Defaults to NGN.
"NGN"
Shorthand currency filter when querying NGN-based rates. Overridden by explicit source/target.
Start date in YYYY-MM-DD format (inclusive).
"2026-01-01"
End date in YYYY-MM-DD format (inclusive). Defaults to today.
"2026-04-17"
Maximum number of records to return.