Request a list of unspent transaction outputs from a collection of HD accounts and/or loose addresses and/or pubkeys (derived in 3 formats P2PKH, P2WPKH/P2SH, P2WPKH Bech32).
## Behavior of the active parameter
If accounts passed to `?active` do not exist, they will be created with a relayed call to the [POST /xpub](./POST_xpub.md) mechanics if new or will be imported from external data sources.
If loose addresses passed to `?active` do not exist, they will be imported from external data sources.
If addresses derived from pubkeys passed to `?active` do not exist, they will be imported from external data sources.
## Declaration of new entities
Instruct the server that [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki) entities are new with `?new=xpub1|addr2|addr3` in the query parameters, and the server will skip importing for those entities.
SegWit support via [BIP49](https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki) is activated for new ypubs and new P2WPKH/P2SH loose addresses with `?bip49=xpub3|xpub4`.
SegWit support via [BIP84](https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki) is activated for new zpubs and new P2WPKH Bech32 loose addresses with `?bip84=xpub3|xpub4`.
Support of [BIP47](https://github.com/bitcoin/bips/blob/master/bip-0047.mediawiki) with addresses derived in 3 formats (P2PKH, P2WPKH/P2SH, P2WPKH Bech32) is activated for new pubkeys with `?pubkey=pubkey1|pubkey2`.
* **active** - `string` - A pipe-separated list of extended public keys and/or loose addresses and/or pubkeys (`xpub1|address1|address2|pubkey1|...`)
* **new** - `string` - A pipe-separated list of **new** extended public keys to be derived via [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki) and/or new P2PKH loose addresses
* **bip49** - `string` - A pipe-separated list of **new** extended public keys to be derived via [BIP49](https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki) and/or new P2WPKH/P2SH loose addresses
* **bip84** - `string` - A pipe-separated list of **new** extended public keys to be derived via [BIP84](https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki) and/or new P2WPKH Bech32 loose addresses
* **pubkey** - `string` - A pipe-separated list of **new** public keys to be derived as P2PKH, P2WPKH/P2SH, P2WPKH Bech32 addresses
* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
Unspent response is consumed by the wallet in the [APIFactory](https://code.samourai.io/wallet/samourai-wallet-android/-/blob/master/app/src/main/java/com/samourai/wallet/api/APIFactory.java)