Can Neutron API be used globally?

Neutron API is designed to support global usage with built-in flexibility for various currencies, regions, and regulatory environments.

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🌐 Supported Countries & Currencies

Neutron enables transactions across a growing list of countries and supports both Bitcoin (BTC) via Lightning and On-Chain, as well as multiple fiat currencies through local payout partners.

You can use the following endpoints to dynamically fetch supported methods and requirements:

• GET /api/v2/reference/methods/by-country/{countryCode} → Returns available payout methods, required fields, and supported currencies for a specific country.

• GET /api/v2/reference/fiat-institution/by-country/{countryCode} → Retrieves banks or mobile institutions available for a given country.

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🌎 Sending & Receiving Internationally

When using the API for cross-border transfers, you must specify:

• sourceReq: The funding method and currency (e.g., BTC, Lightning)

• destReq: The payout method, fiat currency, and recipient details (e.g., VND bank account)

International transactions require KYC and source of funds information to comply with regional regulations. This includes fields like:

"sourceOfFunds": {
  "purpose": 3,       // e.g. Family Maintenance
  "source": 1,        // e.g. Salary
  "relationship": 5   // e.g. Son
}

You can use Neutron’s KYC and institutional lookup endpoints to dynamically determine requirements per corridor.

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📜 Compliance & KYC

Neutron supports individual and business KYC structures. Requirements differ based on:

• The country and method

• Whether it's a domestic or international transaction

• Whether the participant is an individual or a company

KYC data should be passed within the transaction request under the kyc field of both the source and destination legs.

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🛠️ Dynamic Configurability

The Neutron API is built for flexibility:

• Unified structure across fiat and crypto transactions

• Auto-updating fields and extensible schema

• Country-aware routing and compliance logic

You should build your integration to support optional/unknown fields — Neutron may add new fields without breaking changes.

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🧪 Test Environment

You can start building globally using the Neutron sandbox environment:

• Base URL: https://enapi.npay.dev/