# ledger-v1

View an Account's current and historical instrument details

## Retrieve instrument details at origination

 - [POST /api/ledger/{ledgerIdentifier}/issuance/byIdentifier](https://developer.xpansiv.com/openapi/optimal-v1/optimal.transferposition.v1.openapi/ledger-v1/getissuancebatchbyidentifier.md): View instrument details at origination using the issuance identifier.

## Retrieve available ledgers

 - [GET /api/ledger](https://developer.xpansiv.com/openapi/optimal-v1/optimal.transferposition.v1.openapi/ledger-v1/getledgers.md): View the list of available ledgers by registry

## Retrieve account holdings

 - [GET /api/ledger/{ledgerIdentifier}/holding](https://developer.xpansiv.com/openapi/optimal-v1/optimal.transferposition.v1.openapi/ledger-v1/getledgerholdings.md): View current instruments by ledger, using the ledger identifier.

## Retrieve account transfers and retirements

 - [GET /api/ledger/{ledgerIdentifier}/history](https://developer.xpansiv.com/openapi/optimal-v1/optimal.transferposition.v1.openapi/ledger-v1/getledgerhistory.md): View your account's ledger history, such as account-to-account transfers and retirements.

## Retrieves list of counterparties

 - [GET /api/ledger/{ledgerIdentifier}/account](https://developer.xpansiv.com/openapi/optimal-v1/optimal.transferposition.v1.openapi/ledger-v1/getledgeraccounts.md): View counterparties for account-to-account transfers. Counterparties are returned by Program Ledger.