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getBlocks RPC Method

The API credit value for this method is 1 per block. For example, if 5 blocks are accessed, the total credit value would be 1 x 5 which results in a total API credit value of 5. To learn more about API credits and each method's value, visit the API Credits page.


  1. start_slot - string - The start slot encoded as an u64 integer
  2. end_slot - string - (optional) The end slot encoded as an u64 integer
  3. object - (optional) The configuration object with the following fields:

    Commitment - string - (optional) The level of commitment required for the query. The options include:

    Finalized - string - The node will query the most recent block confirmed by supermajority of the cluster as having reached maximum lockout, meaning the cluster has recognized this block as finalized

    Confirmed - string - The node will query the most recent block that has been voted on by supermajority of the cluster


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

Code Examples:

require "uri"
require "json"
require "net/http"

url = URI("http://sample-endpoint-name.network.quiknode.pro/token-goes-here/")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = "application/json"
request.body = JSON.dump([
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getBlocks",
    "params": [

response = https.request(request)
puts response.read_body
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