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PAYCommercial ยท Nium

Nium API

Singapore-headquartered global payments infrastructure: real-time payouts to 190+ countries, collections, FX and card issuing, all API-first. Built for fintechs and platforms embedding cross-border money movement.

How to authenticate

4 stops to a working call

  1. 1Request sandbox access via docs.nium.com / the Nium sales team (platform business onboarding).
  2. 2Receive your API key and client details for the sandbox.
  3. 3Send x-api-key on every request plus a unique x-request-id.
  4. 4Complete compliance onboarding to obtain production credentials.

Example request

Request
curl -H 'x-api-key: YOUR_KEY' -H 'x-request-id: uuid-1234' 'https://gateway.nium.com/api/v1/exchangeRate?sourceCurrencyCode=SGD&destinationCurrencyCode=USD'

Example response

Response (truncated)
{"exchange_rate":0.7788,"source_currency_code":"SGD","destination_currency_code":"USD","expiry_time":"..."}

Nium API: common questions

Is the Nium API free?

The Nium API is listed as contact. Check the official Nium docs for current pricing.

Does the Nium API need an API key?

Yes. It uses API key. Request sandbox access via docs.nium.com / the Nium sales team (platform business onboarding). Receive your API key and client details for the sandbox. Send x-api-key on every request plus a unique x-request-id. Complete compliance onboarding to obtain production credentials.

What is the Nium API endpoint?

The base URL is https://gateway.nium.com/api. A working example: curl -H 'x-api-key: YOUR_KEY' -H 'x-request-id: uuid-1234' 'https://gateway.nium.com/api/v1/exchangeRate?sourceCurrencyCode=SGD&destinationCurrencyCode=USD'

Notes for AI agents

Enterprise-gated: sandbox is obtainable but production requires a commercial agreement and licensing review. Every call needs a unique x-request-id for idempotency.

Machine-readable version: /api/apis/nium

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