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v1

latestOpenAPI 3.0.0MIT2026-07-171769101.7 KB

Gets mint and burn events in the provided slot range, optionally filtering by policyId(s). A burn event is a mint with a negative value.

post/asset/mint-burn-history

Request body

limitnumber double
policyIdsPolicyId[]
untilBlockstring required

block hash - inclusive

Example request

{
  "policyIds": [
    "b863bc7369f46136ac1048adb2fa7dae3af944c3bbb2be2f216a8d4f"
  ],
  "after": {
    "tx": "336d520af58ff440b2f20210ddb5ef5b2c035e0ec7ec258bae4b519a87fa1696",
    "block": "2548ad5d0d9d33d50ab43151f574474454017a733e307229fa509c4987ca9782"
  },
  "untilBlock": "cf8c63a909d91776e27f7d05457e823a9dba606a7ab499ac435e7904ee70d7c8"
}

Response

blockstring required

Block id of related mint / burn event

txIdstring required

Transaction id of related mint / burn event

metadatastring nullable required

Transaction metadata of related mint / burn event

actionSlotnumber double required

Slot at which the transaction happened

outputAddressesobject required

Output parts indexed by address. This mapping will only contain assets that were minted or burned in this transaction.

inputAddressesobject required

Input parts indexed by address. This mapping will only contain assets that were minted or burned in this transaction.

assetsobject required

Assets changed in a particular transaction

Example response

[
  {
    "block": "4e90f1d14ad742a1c0e094a89ad180b896068f93fc3969614b1c53bac547b374",
    "txId": "28eb069e3e8c13831d431e3b2e35f58525493ab2d77fde83184993e4aa7a0eda",
    "actionSlot": 512345,
    "outputAddresses": {
      "8200581c4b2e7295ac876cfdf70e82c1cb8df3ee5cb23d93949e3322230fc447": [
        {
          "policyId": "b863bc7369f46136ac1048adb2fa7dae3af944c3bbb2be2f216a8d4f",
          "assetName": "42657272794e617679",
          "amount": "1"
        }
      ]
    },
    "inputAddresses": {
      "8200581c4b2e7295ac876cfdf70e82c1cb8df3ee5cb23d93949e3322230fc447": [
        {
          "policyId": "b863bc7369f46136ac1048adb2fa7dae3af944c3bbb2be2f216a8d4f",
          "assetName": "42657272794e617680",
          "amount": "2"
        }
      ]
    },
    "assets": {
      "b863bc7369f46136ac1048adb2fa7dae3af944c3bbb2be2f216a8d4f": {
        "42657272794e617679": "1",
        "42657272794e617680": "-2"
      }
    }
  }
]