Fireblocks enables retrieving and refreshing data related to all Non-Fungible Tokens (NFTs) listed in your vault accounts. This allows builders who want to present NFTs on their platform to use the data directly from the Fireblocks database, without the need to query an external node or IPFS for the metadata or media. Given the different characteristics of fungible assets and NFTs, listing the NFTs owned by your vaults uses other endpoints than the ones used for listing your fungible assets.

Managing NFTs

Currently, native NFT listing is enabled for tokens that implement ERC-721 or ERC-1155 standards, on the following blockchains.

Blockchain	Chain	Descriptor
Ethereum	Mainnet	ETH
Ethereum	Goerli	ETH_TEST3
Polygon	Mainnet	POLYGON
Polygon	Mumbai	POLYGON_TEST_MUMBAI

Initial account synchronization

Customers with existing Fireblocks vault accounts can use the refresh function to sync their vault with NFTs not already stored in the Fireblocks database.

// Get vaults
const vaultAccounts = await fireblocks.getVaultAccountsWithPageInfo({});

console.log(inspect(vaultAccounts, false, null, true));

// Extract vault account ids
const vaultAccountsIds = vaultAccounts.accounts.map((va: any) => va.id);
console.log(inspect(vaultAccountsIds, false, null, true));

// Refresh tokens metadata per vault
for (const vaId of vaultAccountsIds) {
  try {
    await fireblocks.refreshNftOwnershipByVault({
      vaultAccountId: vaId,
      blockchainDescriptor: "ETH_TEST3",
    });
  } catch (e) {
    console.log(`Could not refresh vault vtId=${vtId}`);
  }
}

# Get vaults
vault_accounts = fireblocks.get_vault_accounts_with_page_info(
    PagedVaultAccountsRequestFilters()
)

# Extract vault account ids
vault_accounts_ids = [va.get("id") for va in vault_accounts.get("accounts")]
print(vault_accounts_ids)

# Refresh tokens metadata per vault
for va_id in vault_accounts_ids:
    try:
        fireblocks.refresh_nft_ownership_by_vault(
            vault_account_id=va_id,
            blockchain_descriptor="ETH_TEST3",
        )
    except FireblocksApiException:
        print(f"Could not refresh vault {vt_id=}")

Listing NFTs

Users can list and retrieve metadata regarding the NFTs stored in their vault accounts.

const getNFTsList = async (
  blockchainDescriptor?: GetOwnershipTokensBlockchainDescriptorEnum,
  pageSize?: number,
): Promise<GetOwnershipTokens200Response | undefined> => {
  try {
    let nextPage: boolean = true;
    let pageCursor: string | undefined = "";

    // Fetch all owned tokens in workspace with their corresponding balance
    const ownedNFTs: GetOwnershipTokens200Response = (
      await fireblocks.nfts.getOwnershipTokens({
        blockchainDescriptor: blockchainDescriptor,
        pageSize: pageSize,
        pageCursor: pageCursor,
      })
    ).data;
    pageCursor = ownedNFTs.paging?.next;
    // iterate over all pages to fetch all NTFs
    while (nextPage) {
      const nextPageNFTs: GetOwnershipTokens200Response = (
        await fireblocks.nfts.getOwnershipTokens({
          blockchainDescriptor: blockchainDescriptor,
          pageSize: pageSize,
          pageCursor: pageCursor,
        })
      ).data;
      if (!nextPageNFTs.paging) {
        nextPage = false;
      } else {
        pageCursor = nextPageNFTs.paging?.next;
        nextPageNFTs.data?.forEach((item) => {
          ownedNFTs.data?.push(item);
        });
      }
    }
    console.log(
      JSON.stringify(ownedNFTs.data, null, 2),
      "\nNumber of NFTs: ",
      ownedNFTs.data?.length,
    );
    return ownedNFTs;
  } catch (e) {
    console.log(e);
  }
};
getNFTsList(); // add blockchainDescriptorEnum and/or pageSize to filter the response and set the results per page size

// Get vaults
const vaultAccounts = await fireblocks.getVaultAccountsWithPageInfo({});

// Extract vault account ids
const vaultAccountsIds = vaultAccounts.accounts.map((va: any) => va.id);
console.log(inspect(vaultAccountsIds, false, null, true));

// Fetch all owned tokens in tenant with their corresponding balance
const ownedNFTs = await fireblocks.getOwnedNFTs({
  vaultAccountIds: vaultAccountsIds,
  blockchainDescriptor: "POLYGON_TEST_MUMBAI",
});

console.log(inspect(ownedNFTs, false, null, true));

# Get vaults
vault_accounts = fireblocks.get_vault_accounts_with_page_info(
    PagedVaultAccountsRequestFilters()
)

# Extract vault account ids
vault_accounts_ids = [va.get("id") for va in vault_accounts.get("accounts")]
print(vault_accounts_ids)

# Fetch all owned tokens in tenant with their corresponding balance
print(
    fireblocks.get_owned_nfts(
        vault_account_ids=vault_accounts_ids,
        blockchain_descriptor="POLYGON_TEST_MUMBAI",
    )
)

Refreshing a token’s metadata

The metadata of some NFTs may change over time. To make sure an NFT has the most up-to-date metadata, call refreshNFTMetadata function

const refreshNFTsMetada = async (
  TokensBlockchainDescriptorEnum?: GetOwnershipTokensBlockchainDescriptorEnum,
) => {
  try {
    const ownedNFTs: GetOwnershipTokens200Response | undefined = (
      await fireblocks.nfts.getOwnershipTokens({
        blockchainDescriptor: TokensBlockchainDescriptorEnum,
      })
    ).data;

    // Extract NFT ids
    const nftIds: any[] | undefined =
      ownedNFTs.data?.map((nft: { id: string }) => nft.id) ?? [];

    // Refresh metadata for every ids
    for (const nftId of nftIds) {
      try {
        await fireblocks.nfts.refreshNFTMetadata(nftId);
      } catch (error) {
        console.log(`Could not refresh NFT metadata for ${nftId}`);
      }
    }
    console.log(`NFTs metadata was updated successfully!`);
  } catch (e) {
    console.error(e);
  }
};

refreshNFTsMetada(); // add TokensBlockchainDescriptorEnum to update the metada of NFTs only on a specific chain.

// Get vaults
const vaultAccounts = await fireblocks.getVaultAccountsWithPageInfo({});

// Filter for ids
const vaultAccountsIds = vaultAccounts.accounts.map((va: any) => va.id);
console.log(inspect(vaultAccountsIds, false, null, true));

// Fetch all owned tokens in tenant with their corresponding balance
const ownedNFTs = await fireblocks.getOwnedNFTs({
  vaultAccountIds: vaultAccountsIds,
  blockchainDescriptor: "POLYGON_TEST_MUMBAI",
});

// Extract NFT ids
const nftIds: string[] = ownedNFTs.data?.map((nft: { id: string; }) => nft.id) ?? [];

// Refresh metadata for every ids
for (const nftId of nftIds) {
  try {
    await fireblocks.refreshNFTMetadata(nftId);
  } catch (error) {
    console.log(`Could not refresh NFT metadata for ${nftId}`);
  }
}

# Get vaults
vault_accounts = fireblocks.get_vault_accounts_with_page_info(
    PagedVaultAccountsRequestFilters()
)

# Extract vault account ids
vault_accounts_ids = [va.get("id") for va in vault_accounts.get("accounts")]

# Fetch all owned tokens in tenant with their corresponding balance
nfts_data = fireblocks.get_owned_nfts(
    vault_account_ids=vault_accounts_ids,
    blockchain_descriptor="ETH_TEST3",
)

# Extract NFT ids
nft_ids = [nft_id.get("id") for nft_id in nfts_data.get("data", [])]

# Refresh metadata for every ids
for nft_id in nft_ids:
    try:
        fireblocks.refresh_nft_metadata(id=nft_id)
    except FireblocksApiException:
        print(f"Could not refresh NFT metadata for {nft_id=}")

NFT webhook examples

The TRANSACTION_CREATED webhook shows that an NFT transaction was created and includes all the relevant transaction details.

This webhook does not indicate that the NFT itself was created, only that a transaction using the specified NFT was created.

{
  "type": "TRANSACTION_CREATED",
  "tenantId": "00...00",
  "timestamp": 1685537055712,
  "data": {
    "id": "00...00",
    "createdAt": 1685537045477,
    "lastUpdated": 1685537045477,
    "assetId": "ETH_TEST3",
    "source": {
      "id": "34",
      "type": "VAULT_ACCOUNT",
      "name": "Vault 2",
      "subType": ""
    },
    "destination": {
      "id": "",
      "type": "ONE_TIME_ADDRESS",
      "name": "N/A",
      "subType": ""
    },
    "amount": 0,
    "netAmount": 0,
    "sourceAddress": "",
    "destinationAddress": "0x...00",
    "destinationAddressDescription": "",
    "destinationTag": "",
    "status": "SUBMITTED",
    "txHash": "",
    "subStatus": "",
    "signedBy": [],
    "createdBy": "00...00",
    "rejectedBy": "",
    "amountUSD": null,
    "addressType": "",
    "note": "Created by ",
    "exchangeTxId": "",
    "requestedAmount": 0,
    "feeCurrency": "ETH_TEST3",
    "operation": "CONTRACT_CALL",
    "amountInfo": {
      "amount": "0",
      "requestedAmount": "0",
      "netAmount": "0"
    },
    "feeInfo": {},
    "externalTxId": null,
    "blockInfo": {},
    "contractCallDecodedData": {
      "contractName": "SampleERC1155",
      "functionCalls": [
        {
          "name": "safeTransferFrom",
          "params": [
            {
              "name": "from",
              "type": "address",
              "value": "0x...00"
            },
            {
              "name": "to",
              "type": "address",
              "value": "0x...00"
            },
            {
              "name": "id",
              "type": "uint256",
              "value": "676"
            },
            {
              "name": "amount",
              "type": "uint256",
              "value": "3"
            },
            {
              "name": "data",
              "type": "bytes",
              "value": "0x00"
            }
          ],
          "payloadSuffix": ""
        }
      ]
    },
    "extraParameters": {
      "contractCallData": "0x...00"
    }
  }
}

The TRANSACTION_STATUS_UPDATED webhook shows the NFT transaction’s most recent status in the transaction flow.

{
  "type": "TRANSACTION_STATUS_UPDATED",
  "tenantId": "00...00",
  "timestamp": 1685537118476,
  "data": {
    "id": "00...00",
    "createdAt": 1685537045477,
    "lastUpdated": 1685537108198,
    "assetId": "ETH_TEST3",
    "source": {
      "id": "34",
      "type": "VAULT_ACCOUNT",
      "name": "Vault 2",
      "subType": ""
    },
    "destination": {
      "id": "",
      "type": "ONE_TIME_ADDRESS",
      "name": "N/A",
      "subType": ""
    },
    "amount": 0,
    "networkFee": 0.004458229302275784,
    "netAmount": 0,
    "sourceAddress": "",
    "destinationAddress": "0x...00",
    "destinationAddressDescription": "",
    "destinationTag": "",
    "status": "COMPLETED",
    "txHash": "0x...00",
    "subStatus": "CONFIRMED",
    "signedBy": [],
    "createdBy": "00...00",
    "rejectedBy": "",
    "amountUSD": 0,
    "addressType": "",
    "note": "Created by ",
    "exchangeTxId": "",
    "requestedAmount": 0,
    "feeCurrency": "ETH_TEST3",
    "operation": "CONTRACT_CALL",
    "numOfConfirmations": 3,
    "amountInfo": {
      "amount": "0",
      "requestedAmount": "0",
      "netAmount": "0",
      "amountUSD": null
    },
    "feeInfo": {
      "networkFee": "0.004458229302275784",
      "gasPrice": "76.16217886899999"
    },
    "externalTxId": null,
    "blockInfo": {
      "blockHeight": "0...0",
      "blockHash": "00...00"
    },
    "contractCallDecodedData": {
      "contractName": "SampleERC1155",
      "functionCalls": [
        {
          "name": "safeTransferFrom",
          "params": [
            {
              "name": "from",
              "type": "address",
              "value": "0x...00"
            },
            {
              "name": "to",
              "type": "address",
              "value": "0x...00"
            },
            {
              "name": "id",
              "type": "uint256",
              "value": "676"
            },
            {
              "name": "amount",
              "type": "uint256",
              "value": "3"
            },
            {
              "name": "data",
              "type": "bytes",
              "value": "0x00"
            }
          ],
          "payloadSuffix": ""
        }
      ]
    },
    "networkRecords": [
      {
        "source": {
          "id": "34",
          "type": "VAULT_ACCOUNT",
          "name": "Vault 2",
          "subType": ""
        },
        "destination": {
          "id": "",
          "type": "ONE_TIME_ADDRESS",
          "name": "N/A",
          "subType": ""
        },
        "txHash": "0x...00",
        "networkFee": "0.004458229302275784",
        "assetId": "NFT-00...00",
        "netAmount": "3",
        "isDropped": false,
        "type": "CONTRACT_CALL",
        "destinationAddress": "0x...00",
        "amountUSD": null
      },
      {
        "source": {
          "id": "34",
          "type": "VAULT_ACCOUNT",
          "name": "Vault 2",
          "subType": ""
        },
        "destination": {
          "id": "",
          "type": "ONE_TIME_ADDRESS",
          "name": "N/A",
          "subType": ""
        },
        "txHash": "0x...00",
        "networkFee": "0.004458229302275784",
        "assetId": "ETH_TEST3",
        "netAmount": "0.000000000000000000",
        "isDropped": false,
        "type": "CONTRACT_CALL",
        "destinationAddress": "0x...00",
        "amountUSD": "0.00"
      }
    ],
    "signedMessages": [],
    "extraParameters": {
      "contractCallData": "0x...00"
    },
    "assetType": "BASE_ASSET"
  }
}

​Managing NFTs

​Initial account synchronization

​Listing NFTs

​Refreshing a token’s metadata

​NFT webhook examples

Managing NFTs

Initial account synchronization

Listing NFTs

Refreshing a token’s metadata

NFT webhook examples