(Un)Spent Transaction Outputs
These endpoints cover spent and unspent transaction outputs.
Get Unspent UTXOs by Address
This endpoint retrieves a combined, ordered list of both confirmed and unconfirmed UTXOs for a given address. Returns up to 100k unconfirmed results in one request. Confirmed results are paginated if more than 1000 are available. The rest can be accessed using the provided next-page token.
GET https://api.whatsonchain.com/v1/bsv/<network>/address/<address>/unspent/allcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/address/1L2F8wYxTRagCZLnsm2engg8ngGECSeuE5/unspent/all"{
"address": "1L2F8wYxTRagCZLnsm2engg8ngGECSeuE5",
"script": "b3005d46af31c4b5675b73c17579b7bd366dfe10635b7b43ac111aea5226efb6",
"result": [
{
"tx_pos": 1,
"tx_hash": "9c3801270d353066ed0553efb243bccc296d16e8ba589797934717c3f1ac030d",
"value": 98,
"isSpentInMempoolTx": false,
"hex": "76a914d0a69b53d9a1e229b51a60cc24814f8750b7446188ac",
"status": "unconfirmed"
},
...
{
"height": 861936,
"tx_pos": 0,
"tx_hash": "46b080bf212f3b355cffe7956db3adb53840ac550e51110577317df030039d7f",
"value": 100,
"isSpentInMempoolTx": true,
"status": "confirmed"
}
],
"error": ""
}URL Parameters
network
The selected network: main or test.
address
The address
Get Unconfirmed UTXOs by Address
This endpoint retrieves an ordered list of unconfirmed UTXOs for a given address. Returns up to 100k results in one request.
GET https://api.whatsonchain.com/v1/bsv/<network>/address/<address>/unconfirmed/unspentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/address/1Dbj1LUxTqtuZ1U52KZiZChLPHkTAMiD6h/unconfirmed/unspent"{
"result": [
{
"tx_pos": 1,
"tx_hash": "93d8ae93a9e074c555d80e86c130b6cd4d5c7efa2795f91b2aea285c546512c6",
"value": 181724,
"hex": "76a9148a32b77e8f9bce47179fe03b6894e3d37003099888ac"
}
]
}URL Parameters
network
The selected network: main or test.
address
The address
Bulk Unconfirmed UTXOs by Address
This endpoint retrieves an ordered list of unconfirmed UTXOs for a given set of addresses - max 20 addresses per request. Returns up to 100 items in one request.
GET https://api.whatsonchain.com/v1/bsv/<network>/addresses/unconfirmed/unspentcurl --location --request POST "https://api.whatsonchain.com/v1/bsv/main/addresses/unconfirmed/unspent" \
--header "Content-Type: application/json" \
--data "{\"addresses\" : [\"16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP\",\"1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob\" ] }"{
"addresses":
[
"16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP",
"1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob"
]
}[
{
"address": "16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP",
"result": [
{
"height": 657540,
"tx_pos": 1,
"tx_hash": "d75485c2329a533fd06b5f55a3f21644741c0258f2974d5d989e946a0bb4357f",
"value": 25000000
},
{
"height": 657542,
"tx_pos": 1,
"tx_hash": "55a656d50327ec3237fa6e821ab62294695cfd508d631dc9b04dc3a395cf0a37",
"value": 25000000
}
],
"error": ""
},
{
"address": "1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob",
"result": [
{
"height": 658133,
"tx_pos": 1,
"tx_hash": "7ae43aac97396bc99616d8273c6cd9b57f017d6d49aca742fbc8c214fee49fa7",
"value": 25000000
},
{
"height": 658134,
"tx_pos": 1,
"tx_hash": "5b25a56bbb959f9cf4b3e48dbbe412bf5cc85e655d27f87c3bfb07aa6aa01518",
"value": 25000000
}
],
"error": ""
}
]URL Parameters
network
The selected network: main or test.
Get Confirmed UTXOs by Address
This endpoint retrieves an ordered list of confirmed UTXOs for a given address. Pagination is available using the provided next-page token.
The "isSpentInMempoolTx" flag enables filtering of spent unconfirmed transactions from this set.
GET https://api.whatsonchain.com/v1/bsv/<network>/address/<address>/confirmed/unspentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/address/1Dbj1LUxTqtuZ1U52KZiZChLPHkTAMiD6h/confirmed/unspent"{
"result": [
{
"height": 797518,
"tx_pos": 0,
"tx_hash": "6cc9631ef3dad77eb0141134167f20469d0b4e61405de57fe6a9ac71b943bb9f",
"value": 181827,
"isSpentInMempoolTx": false
}
]
}URL Parameters
network
The selected network: main or test.
address
The address
limit
Between 1 and 10000; default is 10000.
token
Provided next page token.
Bulk Confirmed UTXOs by Address
This endpoint retrieves an ordered list of confirmed UTXOs for a given set of addresses - max 20 addresses per request. Returns up to 20 items in one request.
GET https://api.whatsonchain.com/v1/bsv/<network>/addresses/confirmed/unspentcurl --location --request POST "https://api.whatsonchain.com/v1/bsv/main/addresses/
confirmed/unspent" \
--header "Content-Type: application/json" \
--data "{\"addresses\" : [\"16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP\",\"1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob\" ] }"{
"addresses":
[
"16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP",
"1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob"
]
}[
{
"address": "16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP",
"result": [
{
"height": 657540,
"tx_pos": 1,
"tx_hash": "d75485c2329a533fd06b5f55a3f21644741c0258f2974d5d989e946a0bb4357f",
"value": 25000000
},
{
"height": 657542,
"tx_pos": 1,
"tx_hash": "55a656d50327ec3237fa6e821ab62294695cfd508d631dc9b04dc3a395cf0a37",
"value": 25000000
}
],
"error": ""
},
{
"address": "1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob",
"result": [
{
"height": 658133,
"tx_pos": 1,
"tx_hash": "7ae43aac97396bc99616d8273c6cd9b57f017d6d49aca742fbc8c214fee49fa7",
"value": 25000000
},
{
"height": 658134,
"tx_pos": 1,
"tx_hash": "5b25a56bbb959f9cf4b3e48dbbe412bf5cc85e655d27f87c3bfb07aa6aa01518",
"value": 25000000
}
],
"error": ""
}
]URL Parameters
network
The selected network: main or test.
Get Unspent UTXOs by Script
This endpoint retrieves a combined, ordered list of both confirmed and unconfirmed UTXOs for a given script. Returns up to 100k unconfirmed results in one request. Confirmed results are paginated if more than 1000 are available. The rest can be accessed using the provided next-page token.
GET https://api.whatsonchain.com/v1/bsv/<network>/script/<scriptHash>/unspent/allcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/script/b3005d46af31c4b5675b73c17579b7bd366dfe10635b7b43ac111aea5226efb6/unspent/all"{
"script": "b3005d46af31c4b5675b73c17579b7bd366dfe10635b7b43ac111aea5226efb6",
"result": [
{
"tx_pos": 1,
"tx_hash": "9c3801270d353066ed0553efb243bccc296d16e8ba589797934717c3f1ac030d",
"value": 98,
"isSpentInMempoolTx": false,
"hex": "76a914d0a69b53d9a1e229b51a60cc24814f8750b7446188ac",
"status": "unconfirmed"
},
...
{
"height": 861936,
"tx_pos": 0,
"tx_hash": "46b080bf212f3b355cffe7956db3adb53840ac550e51110577317df030039d7f",
"value": 100,
"isSpentInMempoolTx": true,
"status": "confirmed"
}
],
"error": ""
}URL Parameters
network
The selected network: main or test.
scriptHash
The script hash: Sha256 hash of the binary bytes of the locking script (ScriptPubKey), expressed as a hexadecimal string.
Get Unconfirmed UTXOs by Script
This endpoint retrieves the ordered list of unconfirmed UTXOs for a given script. Returns up to 100k results in one request.
GET https://api.whatsonchain.com/v1/bsv/<network>/script/<scriptHash>/unconfirmed/unspentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/script/0374d9ee2df8e5d7c5fd8359f33456996f2a1a9c76d9c783d2f8d5ee05ba5832/unconfirmed/unspent"{
"result": [
{
"tx_pos": 1,
"tx_hash": "93d8ae93a9e074c555d80e86c130b6cd4d5c7efa2795f91b2aea285c546512c6",
"value": 181724,
"hex": "76a9148a32b77e8f9bce47179fe03b6894e3d37003099888ac"
}
]
}URL Parameters
network
The selected network: main or test.
scriptHash
The script hash: Sha256 hash of the binary bytes of the locking script (ScriptPubKey), expressed as a hexadecimal string.
Bulk Unconfirmed UTXOs by Script
This endpoint retrieves an ordered list of unconfirmed UTXOs for a given set of scripthashes - max 20 scripthashes per request. Returns up to 20 items in one request.
GET https://api.whatsonchain.com/v1/bsv/<network>/scripts/unconfirmed/unspentcurl --location --request POST "https://api.whatsonchain.com/v1/bsv/main/scripts/unconfirmed/unspent" \
--header "Content-Type: application/json" \
--data "{\"scripts\" : [\"f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7\",\"995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3\" ] }"{
"scripts": [
"f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7",
"995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3"
]
}[
{
"script": "f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7",
"result": [
{
"height": 620539,
"tx_pos": 0,
"tx_hash": "4ec3b63d764558303eda720e8e51f69bbcfe81376075657313fb587306f8a9b0",
"value": 450000
}
],
"error": ""
},
{
"script": "995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3",
"result": [],
"error": ""
}
]URL Parameters
network
The selected network: main or test.
Get Confirmed UTXOs by Script
This endpoint retrieves the ordered list of confirmed UTXOs for a given script. Pagination is available using the provided next-page token.
The "isSpentInMempoolTx" flag enables filtering of spent unconfirmed transactions from this set.
GET https://api.whatsonchain.com/v1/bsv/<network>/script/<scriptHash>/confirmed/unspentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/script/0374d9ee2df8e5d7c5fd8359f33456996f2a1a9c76d9c783d2f8d5ee05ba5832/confirmed/unspent"{
"result": [
{
"height": 797518,
"tx_pos": 0,
"tx_hash": "6cc9631ef3dad77eb0141134167f20469d0b4e61405de57fe6a9ac71b943bb9f",
"value": 181827,
"isSpentInMempoolTx": false
}
]
}URL Parameters
network
The selected network: main or test.
scriptHash
The script hash: Sha256 hash of the binary bytes of the locking script (ScriptPubKey), expressed as a hexadecimal string.
limit
Between 1 and 10000; default is 10000.
token
Provided next page token.
Bulk Confirmed UTXOs by Script
This endpoint retrieves an ordered list of confirmed UTXOs for a given set of scripthashes - max 20 scripthashes per request. Returns up to 20 items in one request.
GET https://api.whatsonchain.com/v1/bsv/<network>/scripts/confirmed/unspentcurl --location --request POST "https://api.whatsonchain.com/v1/bsv/main/scripts/confirmed/unspent" \
--header "Content-Type: application/json" \
--data "{\"scripts\" : [\"f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7\",\"995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3\" ] }"{
"scripts": [
"f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7",
"995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3"
]
}[
{
"script": "f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7",
"result": [
{
"height": 620539,
"tx_pos": 0,
"tx_hash": "4ec3b63d764558303eda720e8e51f69bbcfe81376075657313fb587306f8a9b0",
"value": 450000
}
],
"error": ""
},
{
"script": "995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3",
"result": [],
"error": ""
}
]URL Parameters
network
The selected network: main or test.
Get Unconfirmed Spent Tx Output
This endpoint retrieves where the specified unconfirmed transaction output was spent.
GET https://api.whatsonchain.com/v1/bsv/<network>/tx/<txid>/<voutIndex>/unconfirmed/spentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/tx/d2d9231b0d3cc19f1b9cfe798b8e68eaf8db3cd803128779c8aabaaea9cba4ea/1/unconfirmed/spent"{
"txid": "b905857a36586e68b8186be1e7b1ac56de196f5257536f019d7071cbdb0608a7",
"vin": 0
}URL Parameters
network
The selected network: main or test.
txid
The transaction ID.
voutIndex
The specific output index.
Get Confirmed Spent Tx Output
This endpoint retrieves where the specified confirmed transaction output was spent.
GET https://api.whatsonchain.com/v1/bsv/<network>/tx/<txid>/<voutIndex>/confirmed/spentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/tx/17d533c6a215223a62eef389707f77bef1601a18e4e994805a7846c3f3d50870/2/confirmed/spent"{
"txid": "87645a7c4a9a5a9b9cd1468db19cdba44129c35cc487fc57c4d8843141ad2551",
"vin": 2
}URL Parameters
network
The selected network: main or test.
txid
The transaction ID.
voutIndex
The specific output index.
Get Spent Transaction Output
This endpoint retrieves where the specified transaction output was spent, checking both confirmed and unconfirmed in a single call.
GET https://api.whatsonchain.com/v1/bsv/<network>/tx/<txid>/<voutIndex>/spentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/tx/17d533c6a215223a62eef389707f77bef1601a18e4e994805a7846c3f3d50870/2/spent"{
"txid": "87645a7c4a9a5a9b9cd1468db19cdba44129c35cc487fc57c4d8843141ad2551",
"vin": 2
}URL Parameters
network
The selected network: main or test.
txid
The transaction ID.
voutIndex
The specific output index.
Errors
400 Bad Request
If UTXO is unknown.
404 Not Found
If UTXO is known but spent details are not found, i.e., it's still unspent.
Bulk Spent Transaction Outputs
This endpoint retrieves where the specified transaction outputs were spent, checking both confirmed and unconfirmed in a single call.
Max 20 transaction outputs per request.
POST https://api.whatsonchain.com/v1/bsv/<network>/utxos/spentcurl --location --request POST "https://api.whatsonchain.com/v1/bsv/main/utxos/spent" \
--header "Content-Type: application/json" \
--data "{\"utxos\" :[{ \"txid\" :\"87645a7c4a9a5a9b9cd1468db19cdba44129c35cc487fc57c4d8843141ad2551\", \"vout\" : 2}, {\"txid\" :\"e05de19075bc8205d702036a53d3e21ff6a2964f1e9941b913921e1e83d82c91\", \"vout\" : 0}]}"{
"utxos":
[
{
"txid": "87645a7c4a9a5a9b9cd1468db19cdba44129c35cc487fc57c4d8843141ad2551",
"vout": 2
},
{
"txid": "e05de19075bc8205d702036a53d3e21ff6a2964f1e9941b913921e1e83d82c91",
"vout": 0
}
]
}[
{
"utxo": {
"txid": "87645a7c4a9a5a9b9cd1468db19cdba44129c35cc487fc57c4d8843141ad2551",
"vout": 2
},
"spentIn": {
"txid": "88d8ce011179fac0dc466a1c5fcb734a91b076d15354aee4f7186ea3f5921533",
"vin": 93,
"status": "confirmed"
},
"error": ""
},
{
"utxo": {
"txid": "e05de19075bc8205d702036a53d3e21ff6a2964f1e9941b913921e1e83d82c91",
"vout": 0
},
"spentIn": {
"txid": "81f4ffcdc8ac15a9f360196f95f8e4e32c2e2c4fb78fdca64e52856820d3ed3d",
"vin": 0,
"status": "unconfirmed"
},
"error": ""
}
]URL Parameters
network
The selected network: main or test.
Errors
400 Bad Request
If UTXO is unknown.
404 Not Found
If UTXO is known but spent details are not found, i.e., it's still unspent.
ElectrumX Wrapper for ElectrumSV (Beta)
We've created a wrapper for our UTXO service that acts exactly like an ElectrumX server that you can plug into the ElectrumSV wallet (Network - Server).
Use any of these URLs to try it out and let us know what you think in the Telegram channel:
Use either the 50001 ,50002 , or 50003 port.
(Deprecated) Get UTXOs by Address
This endpoint is powered by ElectrumX and is planned for removal in the near future.
This endpoint retrieves an ordered list of UTXOs for a given address.
GET https://api.whatsonchain.com/v1/bsv/<network>/address/<address>/unspentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/address/1GJ3x5bcEnKMnzNFPPELDfXUCwKEaLHM5H/unspent"Returns a response as long as the response message is less than 1MB in size.
[
{
"height": 578325,
"tx_pos": 0,
"tx_hash": "62824e3af3d01113e9bce8b73576b833990d231357bd718385958c21d50bbddd",
"value": 1250020815
},
{
"height": 578326,
"tx_pos": 0,
"tx_hash": "4b008a10eebcf70f384442e4e3147bc76c6e4f764b516b208e148d700b965deb",
"value": 1251827826
},
...
]URL Parameters
network
The selected network: main or test.
address
The address
(Deprecated) Bulk UTXOs by Address
This endpoint is powered by ElectrumX and is planned for removal in the near future.
This endpoint retrieves a list of UTXOs for multiple addresses in a single request.
Max 20 addresses per request.
POST https://api.whatsonchain.com/v1/bsv/<network>/addresses/unspentcurl --location --request POST "https://api.whatsonchain.com/v1/bsv/main/addresses/unspent" \
--header "Content-Type: application/json" \
--data "{\"addresses\" : [\"16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP\",\"1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob\" ] }"The JSON structure for the above post request:
{
"addresses":
[
"16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP",
"1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob"
]
}[
{
"address": "16ZBEb7pp6mx5EAGrdeKivztd5eRJFuvYP",
"unspent": [
{
"height": 657540,
"tx_pos": 1,
"tx_hash": "d75485c2329a533fd06b5f55a3f21644741c0258f2974d5d989e946a0bb4357f",
"value": 25000000
},
{
"height": 657542,
"tx_pos": 1,
"tx_hash": "55a656d50327ec3237fa6e821ab62294695cfd508d631dc9b04dc3a395cf0a37",
"value": 25000000
}
],
"error": ""
},
{
"address": "1KGHhLTQaPr4LErrvbAuGE62yPpDoRwrob",
"unspent": [
{
"height": 658133,
"tx_pos": 1,
"tx_hash": "7ae43aac97396bc99616d8273c6cd9b57f017d6d49aca742fbc8c214fee49fa7",
"value": 25000000
},
{
"height": 658134,
"tx_pos": 1,
"tx_hash": "5b25a56bbb959f9cf4b3e48dbbe412bf5cc85e655d27f87c3bfb07aa6aa01518",
"value": 25000000
}
],
"error": ""
}
]URL Parameters
network
The selected network: main or test.
(Deprecated) Get UTXOs by Script
This endpoint is powered by ElectrumX and is planned for removal in the near future.
This endpoint retrieves the ordered list of UTXOs for a given script.
GET https://api.whatsonchain.com/v1/bsv/<network>/script/<scriptHash>/unspentcurl --location --request GET "https://api.whatsonchain.com/v1/bsv/main/script/995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3/unspent"Returns a response as long as the response message is less than 1MB in size.
[
{
"height": 578325,
"tx_pos": 0,
"tx_hash": "62824e3af3d01113e9bce8b73576b833990d231357bd718385958c21d50bbddd",
"value": 1250020815
},
{
"height": 578326,
"tx_pos": 0,
"tx_hash": "4b008a10eebcf70f384442e4e3147bc76c6e4f764b516b208e148d700b965deb",
"value": 1251827826
},
...
] URL Parameters
network
The selected network: main or test.
scriptHash
The script hash: Sha256 hash of the binary bytes of the locking script (ScriptPubKey), expressed as a hexadecimal string.
(Deprecated) Bulk UTXOs by Script
This endpoint is powered by ElectrumX and is planned for removal in the near future.
This endpoint retrieves a list of UTXOs for multiple scripts in a single request.
Max 20 scripts per request.
POST https://api.whatsonchain.com/v1/bsv/<network>/scripts/unspentcurl --location --request POST "https://api.whatsonchain.com/v1/bsv/main/scripts/unspent" \
--header "Content-Type: application/json" \
--data "{\"scripts\" : [\"f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7\",\"995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3\" ] }"The JSON structure for the above post request:
{
"scripts": [
"f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7",
"995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3"
]
}[
{
"script": "f814a7c3a40164aacc440871e8b7b14eb6a45f0ca7dcbeaea709edc83274c5e7",
"unspent": [
{
"height": 620539,
"tx_pos": 0,
"tx_hash": "4ec3b63d764558303eda720e8e51f69bbcfe81376075657313fb587306f8a9b0",
"value": 450000
}
],
"error": ""
},
{
"script": "995ea8d0f752f41cdd99bb9d54cb004709e04c7dc4088bcbbbb9ea5c390a43c3",
"unspent": [],
"error": ""
}
]URL Parameters
network
The selected network: main or test.
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