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Lumx exposes two environments. Same API surface, separate data.

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Sandbox

Sandbox runs against test stablecoins on testnet and integrates with mock banking partners. No real money moves. Use it to build, test KYC/KYB outcomes against the sandbox magic numbers in the taxId field, and verify your webhook handlers before going live. 
https://api-sandbox.lumx.io/

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Production

Production moves real money on mainnet blockchains and live banking rails. Every call settles. Treat keys accordingly. 
https://api.lumx.io/