getConfirmedBlocks RPC Method

Description

Returns a list of confirmed blocks between two slots.

Parameters

1. start_slot (string) - The start slot encoded as u64, 64-bit unsigned integer
2. end_slot (string, optional) - The end slot encoded as u64, 64-bit unsigned integer
3. object (array) - The configuration object with the following fields:
   • commitment (string, optional) - The level of commitment required for the query. The options include:
     • finalized - The node will query the most recent block confirmed by the supermajority of the cluster as having reached maximum lockout, meaning the cluster has recognized this block as finalized
     • confirmed - The node will query the most recent block that has been voted on by the supermajority of the cluster
     • processed - The node will query its most recent block. Note that the block may not be complete

Returns

An array of u64 integers listing confirmed blocks between start_slot and either end_slot, if provided, or latest confirmed block, inclusive. The maximum range allowed is 500,000 slots

Code Examples

curl "https://rpc-mainnet.solanatracker.io/?api_key=YOUR_API_KEY_HERE" \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc": "2.0","id":1,"method":"getConfirmedBlocks","params":[94101945, 94101948]}'