BRL/USDC FX API for the CTO of a Cross-Border Paytech: A Last-Mile Settlement Rail in Brazil
What a BRL/USDC FX API like Crown FX gives a paytech CTO: settlement, sub-accounts, wallets, webhooks and OpenAPI documentation.
For a paytech CTO, the Crown FX API is a BRL and USDC settlement rail for the last mile, with public documentation at docs.crown-brlv.com, authentication by API keys and JWT tokens, and an OpenAPI specification.
Endpoints in scope
- Create and query accounts and sub-accounts (partner model).
- Create wallets and move tokens between EVM wallets.
- Generate Pix QR codes for reais deposits and follow each deposit.
- Fetch quotes and execute conversion orders.
- Request withdrawals by Pix, TED or token.
- Read balances and the complete transaction history, with on-chain operations linked and identified.
Events. Webhooks fire for deposit processed, order completed, transfer completed, withdrawal completed, redemption completed and sub-account approved.
Regulatory side. Under FX-as-a-Service, Crown consolidates Central Bank reporting, end users included. In September 2026 it worked under the transition regime with its authorization request on file.
See integrating a BRL stablecoin by API, API or OTC desk and opening a Crown account.