API References

This section documents all Partner API endpoints, grouped by the operations they support. Before you start, see Authentication for the API key, environments and general request format.

Endpoint Groups

Balances & History

Check your balances and the transaction history of each balance.

Crypto Deposits

Receive crypto to your balances and track deposit status.

Crypto Withdrawals

Whitelist recipient addresses and send crypto to external wallets.

SEPA Deposits

Get bank details and fund your EUR balance via SEPA transfer.

SEPA Withdrawals

Send EUR from your balance to bank accounts via SEPA.

Currency Exchange

Lock rates and exchange between fiat and crypto balances.

Identifiers

Identifier	What it identifies	Where you get it	Where you use it
`balanceId`	A balance in one currency (and network)	`id` in Get Balances	Get Balance History, Create Exchange
`walletId`	A whitelisted recipient address	`id` in Add Whitelisted Wallet or Get Whitelisted Wallets	Create Crypto Withdrawal, Delete Whitelisted Wallet
`lockId`	Locked exchange rates	Create Lock	Create Exchange
`externalId`	Any transaction - deposit, withdrawal or exchange	Balance History, webhooks, transaction responses	Details endpoints
`transactionId`	A transaction created via the API	Response of Create Crypto Withdrawal, Create SEPA Withdrawal or Create Exchange	Details endpoints

Every transaction has an externalId. transactionId is available only for transactions created via the API - transactions created in the web interface have transactionId: null.

Conventions

All amounts are strings, e.g. "10.5". The maximum number of decimal places for each currency is defined by precision in Get Balances.

All timestamps are in ISO 8601 format, in UTC.

Transactions are processed asynchronously - their status changes after the request is accepted.

Transaction Processing

Transaction lifecycle and statuses.

Webhooks

Notifications about transaction status changes.

Supported Currencies

Available currencies, networks and precision.

Need help?

Start with Authentication, then move to the endpoint group relevant for your flow.

For direct assistance, contact support@fintegence.com.

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Endpoint Groups

Identifiers

Conventions

Related