curl --request GET \
  --url https://tonapi.io/v2/blockchain/masterchain/{masterchain_seqno}/blocks

{
  "blocks": [
    {
      "tx_quantity": 130,
      "value_flow": {
        "from_prev_blk": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "to_next_blk": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "imported": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "exported": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "fees_collected": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "fees_imported": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "recovered": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "created": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "minted": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        },
        "burned": {
          "grams": 10000000000,
          "other": [
            {
              "id": 13,
              "value": "10000000000"
            }
          ]
        }
      },
      "workchain_id": 0,
      "shard": "8000000000000000",
      "seqno": 21734019,
      "root_hash": "131D0C65055F04E9C19D687B51BC70F952FD9CA6F02C2801D3B89964A779DF85",
      "file_hash": "A6A0BD6608672B11B79538A50B2204E748305C12AA0DED9C16CF0006CE3AF8DB",
      "global_id": -239,
      "version": 0,
      "after_merge": true,
      "before_split": true,
      "after_split": true,
      "want_split": true,
      "want_merge": true,
      "key_block": true,
      "gen_utime": 1674826775,
      "start_lt": 23814011000000,
      "end_lt": 23814011000001,
      "vert_seqno": 0,
      "gen_catchain_seqno": 0,
      "min_ref_mc_seqno": 0,
      "prev_key_block_seqno": 0,
      "prev_refs": [
        [
          "(-1",
          4234235,
          "8000000000000000)"
        ]
      ],
      "in_msg_descr_length": 0,
      "out_msg_descr_length": 0,
      "rand_seed": "131D0C65055F04E9C19D687B51BC70F952FD9CA6F02C2801D3B89964A779DF85",
      "created_by": "A6A0BD6608672B11B79538A50B2204E748305C12AA0DED9C16CF0006CE3AF8DB",
      "gen_software_version": 0,
      "gen_software_capabilities": 0,
      "master_ref": "(-1,4234234,8000000000000000)"
    }
  ]
}

{
  "error": "<string>",
  "error_code": 123
}