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POST /eth/v1/validator/beacon_committee_subscriptions

Beacon node signal to get ready for committee subnet.

When the beacon node receives this request, use discv5 to look for peers connected to this subnet. If needed, replace the current peers with those peers. If beacon node is_aggregator, validator needs to:

  • subscribe to the subnet topic on gossipsub
  • aggregate the attestations obtained on that subnet

The beacon node has set up the attestation subnet, and the lot signature is legitimate.

Keep in mind that, for a variety of reasons, we cannot guarantee the Beacon node will locate peers for that subnet.

Example Request and Result for /v1/validator/beacon_committee_subscriptions

In this section, we provide an illustrative example of a request made to retrieve details contents using the /v1/validator/beacon_committee_subscriptions endpoint. Additionally, we present the resulting response containing information about signal beacon node to get ready for a committee sub net.


  • none

The example in this section uses a non-existing project id.

Make sure you replace it with your Ethereum Holesky Beacon endpoint when issuing the API calls.

Don't have a project id? Here's a straightforward guide on how to obtain one!

Beacon node signal to get ready for committee subnet.


Successful response

Curl Request example

curl -X 'POST' \
'<project-id>/eth/v1/validator/beacon_committee_subscriptions' \
-H 'accept: */*' \
-H 'Content-Type: application/json' \
-d '[
"validator_index": "1",
"committee_index": "1",
"committees_at_slot": "1",
"slot": "1",
"is_aggregator": true