Cost
This endpoint costs 1 RU (Request Units) per call.Authorizations
Query Parameters
Example:
Example:
Example:
curl --request GET \
--url https://api.kas.fyi/v1/blocks/blue-score/{blue_score_start}/{blue_score_end} \
--header 'x-api-key: <api-key>'{
"blocks": [
{
"hash": "2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f",
"acceptedIdMerkleRoot": "6a58371f3b3ead073b801ef01d9483949e327433551cd7acd4fb120fa50107d4",
"difficulty": 507406243542504400,
"isChainBlock": true,
"mergeSetBluesHashes": [
"2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f"
],
"mergeSetRedsHashes": [
"2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f"
],
"selectedParentHash": "2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f",
"bits": 420621680,
"blueScore": 198182682,
"blueWork": "000000000000000000000000001aac71f3a8e677ec782921",
"daaScore": 199879592,
"hashMerkleRoot": "4033b49e51c2fd1ddf067b3c6f94f7b1b228baccfe8134a0c875b7d24c5df06f",
"nonce": "2463154641575365871",
"parents": [
"2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f"
],
"pruningPoint": "2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f",
"timestamp": "2025-08-17T05:30:42.577Z",
"utxoCommitment": "493dd3d15378745ea44dab81fd702eb35b9330f27f971e0eb1792ef4583b6dae",
"version": 1,
"transactionIds": [
"f123bed13d88bc18236d977c0035267d0054b912170fe4ae619e93306685d2af"
]
}
],
"transactions": [
{
"transactionId": "a7177c55769381a56c126e458c8bb6046613b8a8d45c2f8d3ca5dc71a065279a",
"blockTime": 1749531022210,
"subnetworkId": "0000000000000000000000000000000000000000",
"hash": "f123bed13d88bc18236d977c0035267d0054b912170fe4ae619e93306685d2af",
"mass": "2036",
"blockHashes": [
"30ab8f5ac54c8aa9cbf9a69209a2061e7123293efc40630136c970abef59450b",
"f97afb6794c56e0bb283ea6a38cc51cc41303a055ef9376e707139928cffa588"
],
"acceptingBlockHash": "2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f",
"isAccepted": true,
"confirmations": 10,
"payload": "0x",
"inputs": [
{
"transactionId": "a7177c55769381a56c126e458c8bb6046613b8a8d45c2f8d3ca5dc71a065279a",
"index": 0,
"signatureScript": "4183faed776b7f1b1ed32b97aafe3069ee357c80b637f5069ab859916a896ec69a59e9bebcc3e646587d59376a40c72dd0290f8ebdbf0b64f13e2d8f81d0fe106301",
"sigOpCount": 1,
"previousOutput": {
"transactionId": "a7177c55769381a56c126e458c8bb6046613b8a8d45c2f8d3ca5dc71a065279a",
"index": 0,
"amount": "31112708372",
"scriptPublicKey": "2010fdab002cff0ac15bfc8b982c5a616bef9e5a66f0c655f4f63f7d1cef39d2b4ac",
"scriptPublicKeyAddress": "kaspa:qqg0m2cq9nls4s2mlj9estz6v947l8j6vmcvv4057clh688088ftg7ce6p895",
"scriptPublicKeyType": "pubkey"
}
}
],
"outputs": [
{
"transactionId": "a7177c55769381a56c126e458c8bb6046613b8a8d45c2f8d3ca5dc71a065279a",
"index": 0,
"amount": "31112708372",
"scriptPublicKey": "2010fdab002cff0ac15bfc8b982c5a616bef9e5a66f0c655f4f63f7d1cef39d2b4ac",
"scriptPublicKeyAddress": "kaspa:qqg0m2cq9nls4s2mlj9estz6v947l8j6vmcvv4057clh688088ftg7ce6p895",
"scriptPublicKeyType": "pubkey"
}
]
}
]
}Retrieve a list of blocks within the specified blue score range. Both start and end blue scores are inclusive.
Maximum range size is 100 blocks per request.
curl --request GET \
--url https://api.kas.fyi/v1/blocks/blue-score/{blue_score_start}/{blue_score_end} \
--header 'x-api-key: <api-key>'{
"blocks": [
{
"hash": "2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f",
"acceptedIdMerkleRoot": "6a58371f3b3ead073b801ef01d9483949e327433551cd7acd4fb120fa50107d4",
"difficulty": 507406243542504400,
"isChainBlock": true,
"mergeSetBluesHashes": [
"2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f"
],
"mergeSetRedsHashes": [
"2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f"
],
"selectedParentHash": "2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f",
"bits": 420621680,
"blueScore": 198182682,
"blueWork": "000000000000000000000000001aac71f3a8e677ec782921",
"daaScore": 199879592,
"hashMerkleRoot": "4033b49e51c2fd1ddf067b3c6f94f7b1b228baccfe8134a0c875b7d24c5df06f",
"nonce": "2463154641575365871",
"parents": [
"2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f"
],
"pruningPoint": "2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f",
"timestamp": "2025-08-17T05:30:42.577Z",
"utxoCommitment": "493dd3d15378745ea44dab81fd702eb35b9330f27f971e0eb1792ef4583b6dae",
"version": 1,
"transactionIds": [
"f123bed13d88bc18236d977c0035267d0054b912170fe4ae619e93306685d2af"
]
}
],
"transactions": [
{
"transactionId": "a7177c55769381a56c126e458c8bb6046613b8a8d45c2f8d3ca5dc71a065279a",
"blockTime": 1749531022210,
"subnetworkId": "0000000000000000000000000000000000000000",
"hash": "f123bed13d88bc18236d977c0035267d0054b912170fe4ae619e93306685d2af",
"mass": "2036",
"blockHashes": [
"30ab8f5ac54c8aa9cbf9a69209a2061e7123293efc40630136c970abef59450b",
"f97afb6794c56e0bb283ea6a38cc51cc41303a055ef9376e707139928cffa588"
],
"acceptingBlockHash": "2a0c51fab2a7c7a187299e087a244d1e70acdc75e0214a661c62761e2d6bbf4f",
"isAccepted": true,
"confirmations": 10,
"payload": "0x",
"inputs": [
{
"transactionId": "a7177c55769381a56c126e458c8bb6046613b8a8d45c2f8d3ca5dc71a065279a",
"index": 0,
"signatureScript": "4183faed776b7f1b1ed32b97aafe3069ee357c80b637f5069ab859916a896ec69a59e9bebcc3e646587d59376a40c72dd0290f8ebdbf0b64f13e2d8f81d0fe106301",
"sigOpCount": 1,
"previousOutput": {
"transactionId": "a7177c55769381a56c126e458c8bb6046613b8a8d45c2f8d3ca5dc71a065279a",
"index": 0,
"amount": "31112708372",
"scriptPublicKey": "2010fdab002cff0ac15bfc8b982c5a616bef9e5a66f0c655f4f63f7d1cef39d2b4ac",
"scriptPublicKeyAddress": "kaspa:qqg0m2cq9nls4s2mlj9estz6v947l8j6vmcvv4057clh688088ftg7ce6p895",
"scriptPublicKeyType": "pubkey"
}
}
],
"outputs": [
{
"transactionId": "a7177c55769381a56c126e458c8bb6046613b8a8d45c2f8d3ca5dc71a065279a",
"index": 0,
"amount": "31112708372",
"scriptPublicKey": "2010fdab002cff0ac15bfc8b982c5a616bef9e5a66f0c655f4f63f7d1cef39d2b4ac",
"scriptPublicKeyAddress": "kaspa:qqg0m2cq9nls4s2mlj9estz6v947l8j6vmcvv4057clh688088ftg7ce6p895",
"scriptPublicKeyType": "pubkey"
}
]
}
]
}