Next available sub-account

GET /v1/data/lending/next-account

Discover the next available sub-account or position ID for a given lender and owner.

Different protocols handle sub-accounts differently:

Euler V2 (accountType: SELECT): Sub-accounts are derived by XORing the owner's last address byte with an index (0–255). The integrator selects an accountId from the range. Any unused value automatically creates a new sub-account.
Init Capital (accountType: AUTOGEN): Position IDs are NFT hashes generated on-chain. To create a new position, omit the posId/accountId parameter entirely. The nextAccountId field is a preview of the ID that will be generated.
Other lenders (Aave, Morpho, Compound, etc.): Do not support sub-accounts — returns a 400 error.

`accountType`	To create new account	To use existing account
`SELECT`	Pass `accountId=<unused value>` from `accountIdRange`	Pass `accountId=<existing value>`
`AUTOGEN`	Omit `accountId` / `posId` parameter	Pass `posId=<existing ID>`

Request

Next account information