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GET
/
api
/
v3
/
masterchainInfo
Get masterchain info
curl --request GET \
  --url https://toncenter.com/api/v3/masterchainInfo
{
  "first": {
    "after_merge": true,
    "after_split": true,
    "before_split": true,
    "created_by": "<string>",
    "end_lt": "0",
    "file_hash": "<string>",
    "flags": 123,
    "gen_catchain_seqno": 123,
    "gen_utime": "0",
    "global_id": 123,
    "key_block": true,
    "master_ref_seqno": 123,
    "masterchain_block_ref": {
      "seqno": 123,
      "shard": "0",
      "workchain": 123
    },
    "min_ref_mc_seqno": 123,
    "prev_blocks": [
      {
        "seqno": 123,
        "shard": "0",
        "workchain": 123
      }
    ],
    "prev_key_block_seqno": 123,
    "rand_seed": "<string>",
    "root_hash": "<string>",
    "seqno": 123,
    "shard": "0",
    "start_lt": "0",
    "tx_count": 123,
    "validator_list_hash_short": 123,
    "version": 123,
    "vert_seqno": 123,
    "vert_seqno_incr": true,
    "want_merge": true,
    "want_split": true,
    "workchain": 123
  },
  "last": {
    "after_merge": true,
    "after_split": true,
    "before_split": true,
    "created_by": "<string>",
    "end_lt": "0",
    "file_hash": "<string>",
    "flags": 123,
    "gen_catchain_seqno": 123,
    "gen_utime": "0",
    "global_id": 123,
    "key_block": true,
    "master_ref_seqno": 123,
    "masterchain_block_ref": {
      "seqno": 123,
      "shard": "0",
      "workchain": 123
    },
    "min_ref_mc_seqno": 123,
    "prev_blocks": [
      {
        "seqno": 123,
        "shard": "0",
        "workchain": 123
      }
    ],
    "prev_key_block_seqno": 123,
    "rand_seed": "<string>",
    "root_hash": "<string>",
    "seqno": 123,
    "shard": "0",
    "start_lt": "0",
    "tx_count": 123,
    "validator_list_hash_short": 123,
    "version": 123,
    "vert_seqno": 123,
    "vert_seqno_incr": true,
    "want_merge": true,
    "want_split": true,
    "workchain": 123
  }
}

Response

200 - application/json

First and last indexed masterchain blocks.

The first and last indexed masterchain blocks, indicating the range of data available from the indexer. Use this to check whether the indexer is up to date and to determine the earliest available block for historical queries.

​
first
object

The earliest masterchain block available in the index. Historical queries before this block will return no data.

​
last
object

The most recent masterchain block processed by the indexer. Compare this to the network's current block to check indexer lag.