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eth-v1-events RPC Method

Subscribe to beacon node events.

Updated on
Jul 07, 2026

Query Parameters

topics
array
REQUIRED

Event types to subscribe to

Returns

data

The object with the following values:

slot
string

The corresponding slot

block
string

The information about the specified block

state
string

The activation state

current_duty_dependent_root
string

The current duty dependent root

previous_duty_dependent_root
string

The previous duty dependent root

epoch_transition
boolean

The epoch transition

execution_optimistic
boolean

It's true if the response references an unverified execution payload. The optimistic information may be invalidated at a later time. If the field is not present, assume the false value

Request
Response
1
{
2
"Connected": "to https://docs-demo.quiknode.pro/eth/v1/events?topics=head"
3
}
1
{
2
"Connected": "to https://docs-demo.quiknode.pro/eth/v1/events?topics=head"
3
}
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