EIP-4844 blob sidecars.

Quickstart

Blobs is a drop-in replacement for the Consensus Layer /eth/v1/beacon/blob_sidecars endpoint. Pull EIP-4844 blob sidecars by slot, head, or block root — including the blob payload, KZG commitment & proof, and the inclusion proof against the beacon block. Public endpoint, no API key, no auth header. Use it for L2 data-availability lookups, archive replay, or forensic investigation past your CL client's retention window.

Pin a slot with /blob_sidecars/<slot>, a block root with /blob_sidecars/0x<root>, or follow chain head with /blob_sidecars/head. Add ?indices=0,1 to fetch only specific sidecars from a block.

cURL

1curl 'https://eth.blobs.pinax.network/eth/v1/beacon/blob_sidecars/head' \
2  -H 'Accept: application/json'

Beacon

Get blobs by block id

FREE

Returns blob sidecars for a given block — including the blob payload, KZG commitment & proof, and the inclusion proof. Drop-in replacement for the Consensus Layer client endpoint of the same shape.

GET

https://eth.blobs.pinax.network/eth/v1/beacon/blob_sidecars/{block_id}

Supported networks (4)

Ethereum

Sepolia

Hoodi

Gnosis

Required parameters

Name	Type	Description
block_idrequired path	string	Block identifier. One of: `head`, a slot number, or a hex-encoded block root with `0x` prefix. e.g. head

Optional parameters

Name	Type	Description
indices query	array	CSV of blob-sidecar indices to return. Omit to return every blob in the block. e.g. 0,1

Response

200 OK

{
  "data": [
    {
      "index": "0",
      "blob": "0x000000…",
      "kzg_commitment": "0xa1b2c3d4e5f6…",
      "kzg_proof": "0x7e8d9c0b1a2…",
      "kzg_commitment_inclusion_proof": [
        "0x…",
        "0x…",
        "0x…"
      ],
      "signed_block_header": {
        "message": {
          "slot": "11842073",
          "proposer_index": "184362",
          "parent_root": "0x4f8a…",
          "state_root": "0x9d1c…",
          "body_root": "0x2e7b…"
        },
        "signature": "0x83…"
      }
    }
  ]
}