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1

Create your account

To begin, create your free account by visiting Builder Hub Console.
2

Get an API Key

Once the account is created:
  1. Navigating to Data API Keys
  2. Click on Create API Key
  3. Set an alias and click on create
  4. Copy the the value
Always keep your API keys in a secure environment. Never expose them in public repositories, such as GitHub, or share them with unauthorized individuals. Compromised API keys can lead to unauthorized access and potential misuse of your account.
3

Make a query

With your API Key you can start making queries, for example to get the latest block on the C-chain(43114):
  curl --location 'https://data-api.avax.network/v1/chains/43114/blocks' \
  --header 'accept: application/json' \
  --header 'x-glacier-api-key: <YOUR-API-KEY>' \
And you should see something like this:
{
  "blocks": [
    {
      "blockNumber": "49889407",
      "blockTimestamp": 1724990250,
      "blockHash": "0xd34becc82943e3e49048cdd3f75b80a87e44eb3aed6b87cc06867a7c3b9ee213",
      "txCount": 1,
      "baseFee": "25000000000",
      "gasUsed": "53608",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0xf4917efb4628a1d8f4d101b3d15bce9826e62ef2c93c3e16ee898d27cf02f3d4",
      "feesSpent": "1435117553916960",
      "cumulativeTransactions": "500325352"
    },
    {
      "blockNumber": "49889406",
      "blockTimestamp": 1724990248,
      "blockHash": "0xf4917efb4628a1d8f4d101b3d15bce9826e62ef2c93c3e16ee898d27cf02f3d4",
      "txCount": 2,
      "baseFee": "25000000000",
      "gasUsed": "169050",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0x2a54f142fa3acee92a839b071bb6c7cca7abc2a797cf4aac68b07f79406ac0cb",
      "feesSpent": "4226250000000000",
      "cumulativeTransactions": "500325351"
    },
    {
      "blockNumber": "49889405",
      "blockTimestamp": 1724990246,
      "blockHash": "0x2a54f142fa3acee92a839b071bb6c7cca7abc2a797cf4aac68b07f79406ac0cb",
      "txCount": 4,
      "baseFee": "25000000000",
      "gasUsed": "618638",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0x0cda1bb5c86e790976c9330c9fc26e241a705afbad11a4caa44df1c81058451d",
      "feesSpent": "16763932426044724",
      "cumulativeTransactions": "500325349"
    },
    {
      "blockNumber": "49889404",
      "blockTimestamp": 1724990244,
      "blockHash": "0x0cda1bb5c86e790976c9330c9fc26e241a705afbad11a4caa44df1c81058451d",
      "txCount": 3,
      "baseFee": "25000000000",
      "gasUsed": "254544",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0x60e55dd9eacc095c07f50a73e02d81341c406584f7abbf5d10d938776a4c893c",
      "feesSpent": "6984642298020000",
      "cumulativeTransactions": "500325345"
    },
    {
      "blockNumber": "49889403",
      "blockTimestamp": 1724990242,
      "blockHash": "0x60e55dd9eacc095c07f50a73e02d81341c406584f7abbf5d10d938776a4c893c",
      "txCount": 2,
      "baseFee": "25000000000",
      "gasUsed": "65050",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0xa3e9f91f45a85ed00b8ebe8e5e976ed1a1f52612143eddd3de9d2588d05398b8",
      "feesSpent": "1846500000000000",
      "cumulativeTransactions": "500325342"
    },
    {
      "blockNumber": "49889402",
      "blockTimestamp": 1724990240,
      "blockHash": "0xa3e9f91f45a85ed00b8ebe8e5e976ed1a1f52612143eddd3de9d2588d05398b8",
      "txCount": 2,
      "baseFee": "25000000000",
      "gasUsed": "74608",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0x670db772edfc2fdae322d55473ba0670690aed6358a067a718492c819d63356a",
      "feesSpent": "1997299851936960",
      "cumulativeTransactions": "500325340"
    },
    {
      "blockNumber": "49889401",
      "blockTimestamp": 1724990238,
      "blockHash": "0x670db772edfc2fdae322d55473ba0670690aed6358a067a718492c819d63356a",
      "txCount": 1,
      "baseFee": "25000000000",
      "gasUsed": "273992",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0x75742cf45383ce54823690b9dd2e85a743be819281468163d276f145d077902a",
      "feesSpent": "7334926295195040",
      "cumulativeTransactions": "500325338"
    },
    {
      "blockNumber": "49889400",
      "blockTimestamp": 1724990236,
      "blockHash": "0x75742cf45383ce54823690b9dd2e85a743be819281468163d276f145d077902a",
      "txCount": 1,
      "baseFee": "25000000000",
      "gasUsed": "291509",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0xe5055eae3e1fd2df24b61e9c691f756c97e5619cfc66b69cbcb6025117d1bde7",
      "feesSpent": "7724988500000000",
      "cumulativeTransactions": "500325337"
    },
    {
      "blockNumber": "49889399",
      "blockTimestamp": 1724990234,
      "blockHash": "0xe5055eae3e1fd2df24b61e9c691f756c97e5619cfc66b69cbcb6025117d1bde7",
      "txCount": 8,
      "baseFee": "25000000000",
      "gasUsed": "824335",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0xbcacff928f7dd20cc1522155e7c9b9716997914b53ab94034b813c3f207174ef",
      "feesSpent": "21983004380692400",
      "cumulativeTransactions": "500325336"
    },
    {
      "blockNumber": "49889398",
      "blockTimestamp": 1724990229,
      "blockHash": "0xbcacff928f7dd20cc1522155e7c9b9716997914b53ab94034b813c3f207174ef",
      "txCount": 1,
      "baseFee": "25000000000",
      "gasUsed": "21000",
      "gasLimit": "15000000",
      "gasCost": "0",
      "parentHash": "0x0b686812078429d33e4224d2b48bd26b920db8dbb464e7f135d980759ca7e947",
      "feesSpent": "562182298020000",
      "cumulativeTransactions": "500325328"
    }
  ],
  "nextPageToken": "9f9e1d25-14a9-49f4-8742-fd4bf12f7cd8"
}
Congratulations! You’ve successfully set up your account and made your first query to the Data API 🚀🚀🚀