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Get address/account details.

GET
https://optimism-index.nownodes.io/api/v2/address/{address}

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns balances and transactions of an address. Transactions are sorted by block height with newest blocks first. Response size is controlled by the details parameter.

At details=basic, mempool transactions are not aggregated: unconfirmedBalance, unconfirmedSending, and unconfirmedReceiving are omitted, and unconfirmedTxs reports the raw mempool index size for the address.

Load estimate: Variable; basic is low, token/tokenBalances and txids/txslight are medium, and txs can be high as it grows with pageSize, transactions, token rows, filters, and protocol enrichment.

Parameters

addressstringrequiredpath

BNB Smart Chain address in 0x-prefixed hexadecimal format.

pageinteger<int32>>= 11query

Page number of the returned transaction list. Pagination starts from 1.

pageSizeinteger<int32>[1, 1000]1000query

Maximum number of transactions returned on one page.

frominteger<int64>>= 0query

Start block height filter for transactions, inclusive.

tointeger<int64>>= 0query

End block height filter for transactions, inclusive.

detailsstringbasictokenstokenBalancestxidstxslighttxstxidsquery

Controls how much transaction or token detail is included in the response. Supported values: basic, tokens, tokenBalances, txids, txslight, txs.

tokensstringusednonzeroderivedquery

Token list mode for the address response. Use used to include tokens used by the address, nonzero to include only non-zero balances, or derived to include derived token information when supported.

secondarystringquery

Secondary currency code. When set, balance and transaction fields are additionally returned in this currency.

contractstringquery

Smart-contract address used to filter token-related address data.

filterstring | integerquery

Filter account history by input/output side, or by numeric token/internal filter id.

protocolsArray<string>query

Optional protocol enrichments, comma-separated or repeated. Currently supported value: erc4626. Unknown values are rejected.

Response

200OK

Address/account details.

401Unauthorized

Unauthorized: API key is present but rejected by the NOWNodes gateway.

405Method Not Allowed

Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.

422Unprocessable Entity

Missing API key. The NOWNodes gateway returns plain text for this error.

default

Public API error.