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Money and idempotency

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Settlement balance

Your funds live on a single USDT / TRON settlement account. Create calls that need funds check available balance. Insufficient funds → 422 / insufficient_balance (document is not created). IMBA does not extend credit.

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Fees

Some operations return a separate fee (USDT). For withdrawals, amount is what the recipient receives; the fee is charged on top from your available balance. Catalog prices for eSIM/gift are the USDT debit amounts you will be charged (after any agreed discount).

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Currency / network

v1 asset:

• currency=USDT
• network=TRON

Optional query synonym: asset=USDT_TRC20.

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ext_id idempotency

Every create requires your ext_id (unique per partner). Use GET /partner/documents/{ext_id} to poll status. Design ext_id as a stable business key (order id), not a random value per retry.

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Amounts

JSON amounts are decimal strings (e.g. "12.50"), not floats. Timestamps are UTC RFC 3339.