Get UTXOs for an address, XPUB, or descriptor.
Authorizations
ApiKeyAuthApiKeyAuthapi-key string
NOWNodes API key passed in the api-key header.
Modified between 0.5.0 and 0.6.0: XPUB/descriptor scans are bounded: gap is capped at 10,000, a descriptor may list at most 10 change indexes, and a descriptor whose total derivation scan exceeds the server limit is rejected with an error. Shielded (Sapling) transactions with version 3 and above now carry the canonical txid computed from the full raw transaction, matching the txid reported by the PIVX node. In 0.5.0 Blockbook computed a different txid for them. Documented as it exists in 0.6.0.
Returns unspent outputs for an address, XPUB, or descriptor on Bitcoin-type coins. By default both confirmed and unconfirmed UTXOs are returned; confirmed=true filters out unconfirmed entries. Results are sorted by block height with newest entries first.
Unconfirmed UTXOs omit height, have confirmations set to 0, and can include lockTime. XPUB and descriptor UTXOs also include address and derivation path when available. Coinbase UTXOs include coinbase=true only up to the coinbase confirmation limit, currently 100 blocks.
Load estimate: Variable; address lookups are usually medium, while XPUB/descriptor lookups grow with gap, derived addresses, and UTXO count.
Parameters
descriptorstringrequiredpathAddress, XPUB, or supported descriptor. URL-encode descriptors.
confirmedbooleanqueryWhen true, return only confirmed UTXOs.
gapinteger[0, 10000]queryXPUB/address derivation gap limit.
Response
UTXO list.
Bad Request
Unauthorized. Returned when the api-key header is missing, empty, or not accepted by the NOWNodes gateway. The body is plain text.
Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.
Unprocessable Entity. Returned by the NOWNodes gateway for requests it accepts but cannot process. The body is plain text.
Internal Server Error
Service Unavailable
Public API error.