Slot overview

curl --request GET \
  --url 'https://beaconcha.in/api/v1/slot/{slotOrHash}?apikey='

{
  "status": "OK",
  "data": {
    "attestationscount": 8,
    "attesterslashingscount": 0,
    "blockroot": "0xeb64c069b979ef8eed41993ec0563f1ed0e935b95fcbe9ed26de4c904c94aeb3",
    "depositscount": 10,
    "epoch": 398479,
    "eth1data_blockhash": "0xeb64c069b979ef8eed41993ec0563f1ed0e935b95fcbe9ed26de4c904c94aeb3",
    "eth1data_depositcount": 2045305,
    "eth1data_depositroot": "0x2ebc563cabdbbacbc56f0de1d2d1c2d5315a4b071fcd8566aabbf0a45161c64e",
    "exec_base_fee_per_gas": 680634007,
    "exec_block_hash": "0x1f97b8eb2444d4fcdfd8dade8a9f8630860acca3ce694f800881fab642eace6c",
    "exec_block_number": 23525866,
    "exec_extra_data": "0x546974616e2028746974616e6275696c6465722e78797a29",
    "exec_fee_recipient": "0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97",
    "exec_gas_limit": 23525866,
    "exec_gas_used": 23525866,
    "exec_logs_bloom": "0x54a8a16a45119f9fd52558acccb035c9154b9b509664b87dcfdd129d7499b0a1249dd137bfed0146da934b6b47ea75dc77d1c67bac137b0914da37d4686c97ceba768dfa4ed0fcb8ed34d1ab91e99aa164663e32e7fe79386b627cba1e9cde870b71a9eabb4",
    "exec_parent_hash": "0x3f9eeb7bbcfa68b70ed5b15fe0476c0cd594a025032ad6522c2f087922393b3e",
    "exec_random": "0x2a9ef3da82054fe160d54973c8f7ce9482ff1ef0c09262d9a86e3641d1d52131",
    "exec_receipts_root": "0xbc1799c451b10b1689e540333ca2f9dac9a86a9654075a0d141385d6bbb8ceed",
    "exec_state_root": "0x8e251e0dd4aaf308b5c899c8f659e6de984aad11f4df85468d6cbf9edfa7ce48",
    "exec_timestamp": 1759839959,
    "exec_transactions_count": 3,
    "graffiti": "0x544b373536390000000000000000000000000000000000000000000000000000",
    "graffiti_text": "TK7569",
    "parentroot": "0x36ed53a94a32b494b3a26fbbb56c2ce2af9cf657a7c3975da96faf0fba66c2c2",
    "proposer": 1098947,
    "proposerslashingscount": 0,
    "randaoreveal": "0x8add195bc76c9cd723730cd4dae3098663f3e0257a543ed8ca4273471e1983c8c937ee37b95c7c30c5e91bf6a19b81a60f11bbb41014e45674e57566dba923b6c26b17911f811af04b28dce9020bb54b6f8de38bb63b8a0f9c4902357700e85b",
    "signature": "0xab6b6d826c14b6141e3406c5227ead15b133993195e96edc05fdeba998d0e0fd96e4ec5f47f6c9eec1558a59042c03d1016e679faf7300bc14737c7178c5cc01b2ea5f345e13cc2e29eeeefaf18cdcde6c0a99d80923ecf8ff8619a4d2511f6e",
    "slot": 12751457,
    "stateroot": "0xb4373fdde2b7e43692937e6982a853b747ae3ec2ec4721bee538f4770229415d",
    "status": "1",
    "syncaggregate_bits": "0xaf6d5ffa3fddbdd7a82286f7dd17b87bfdbbbf17733beda97eef74bfffdeff7fdf7dd1effdf0d3ffbf23feb97bf463febfb0edcceef65fea77fdbdcfb50edbf1",
    "syncaggregate_participation": 0.990234375,
    "syncaggregate_signature": "0xaa7c2f8db87e82ed4e45e0c328918f0f1ca88d6bdc1e20933816b22e3965099d2fcaa6960e76959921c0d6b5b7a73d1203e3bceaf2a23436f9eedc072d924b4270f21c57356ca99813e63b44dd4f363abc49466114b05736ef925d9330f93dd5",
    "voluntaryexitscount": 0,
    "withdrawalcount": 16
  }
}

GET

api

slot

{slotOrHash}

Slot overview

curl --request GET \
  --url 'https://beaconcha.in/api/v1/slot/{slotOrHash}?apikey='

{
  "status": "OK",
  "data": {
    "attestationscount": 8,
    "attesterslashingscount": 0,
    "blockroot": "0xeb64c069b979ef8eed41993ec0563f1ed0e935b95fcbe9ed26de4c904c94aeb3",
    "depositscount": 10,
    "epoch": 398479,
    "eth1data_blockhash": "0xeb64c069b979ef8eed41993ec0563f1ed0e935b95fcbe9ed26de4c904c94aeb3",
    "eth1data_depositcount": 2045305,
    "eth1data_depositroot": "0x2ebc563cabdbbacbc56f0de1d2d1c2d5315a4b071fcd8566aabbf0a45161c64e",
    "exec_base_fee_per_gas": 680634007,
    "exec_block_hash": "0x1f97b8eb2444d4fcdfd8dade8a9f8630860acca3ce694f800881fab642eace6c",
    "exec_block_number": 23525866,
    "exec_extra_data": "0x546974616e2028746974616e6275696c6465722e78797a29",
    "exec_fee_recipient": "0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97",
    "exec_gas_limit": 23525866,
    "exec_gas_used": 23525866,
    "exec_logs_bloom": "0x54a8a16a45119f9fd52558acccb035c9154b9b509664b87dcfdd129d7499b0a1249dd137bfed0146da934b6b47ea75dc77d1c67bac137b0914da37d4686c97ceba768dfa4ed0fcb8ed34d1ab91e99aa164663e32e7fe79386b627cba1e9cde870b71a9eabb4",
    "exec_parent_hash": "0x3f9eeb7bbcfa68b70ed5b15fe0476c0cd594a025032ad6522c2f087922393b3e",
    "exec_random": "0x2a9ef3da82054fe160d54973c8f7ce9482ff1ef0c09262d9a86e3641d1d52131",
    "exec_receipts_root": "0xbc1799c451b10b1689e540333ca2f9dac9a86a9654075a0d141385d6bbb8ceed",
    "exec_state_root": "0x8e251e0dd4aaf308b5c899c8f659e6de984aad11f4df85468d6cbf9edfa7ce48",
    "exec_timestamp": 1759839959,
    "exec_transactions_count": 3,
    "graffiti": "0x544b373536390000000000000000000000000000000000000000000000000000",
    "graffiti_text": "TK7569",
    "parentroot": "0x36ed53a94a32b494b3a26fbbb56c2ce2af9cf657a7c3975da96faf0fba66c2c2",
    "proposer": 1098947,
    "proposerslashingscount": 0,
    "randaoreveal": "0x8add195bc76c9cd723730cd4dae3098663f3e0257a543ed8ca4273471e1983c8c937ee37b95c7c30c5e91bf6a19b81a60f11bbb41014e45674e57566dba923b6c26b17911f811af04b28dce9020bb54b6f8de38bb63b8a0f9c4902357700e85b",
    "signature": "0xab6b6d826c14b6141e3406c5227ead15b133993195e96edc05fdeba998d0e0fd96e4ec5f47f6c9eec1558a59042c03d1016e679faf7300bc14737c7178c5cc01b2ea5f345e13cc2e29eeeefaf18cdcde6c0a99d80923ecf8ff8619a4d2511f6e",
    "slot": 12751457,
    "stateroot": "0xb4373fdde2b7e43692937e6982a853b747ae3ec2ec4721bee538f4770229415d",
    "status": "1",
    "syncaggregate_bits": "0xaf6d5ffa3fddbdd7a82286f7dd17b87bfdbbbf17733beda97eef74bfffdeff7fdf7dd1effdf0d3ffbf23feb97bf463febfb0edcceef65fea77fdbdcfb50edbf1",
    "syncaggregate_participation": 0.990234375,
    "syncaggregate_signature": "0xaa7c2f8db87e82ed4e45e0c328918f0f1ca88d6bdc1e20933816b22e3965099d2fcaa6960e76959921c0d6b5b7a73d1203e3bceaf2a23436f9eedc072d924b4270f21c57356ca99813e63b44dd4f363abc49466114b05736ef925d9330f93dd5",
    "voluntaryexitscount": 0,
    "withdrawalcount": 16
  }
}

Authorizations

apikey

string

query

required

Path Parameters

slotOrHash

required

The slot to fetch. Provide an integer slot number (>= 0), the special tags latest or head, or a 0x-prefixed 32-byte block root hash (64 hex characters after 0x). Slot number (>= 0)

Required range: x >= 0

Example:

12751457

Response

The slot was found and details are returned in the data field.

Standard success envelope used by all API endpoints.

status

enum<string>

HTTP-independent status of the API operation. For successful responses this is always "OK".

Available options:

OK

data

object

Detailed representation of a beacon slot and its associated block and execution payload fields.

Show child attributes

data.attestationscount

integer

Number of attestations included in this block

Example:

8

data.attesterslashingscount

integer

Number of attester slashing operations included in this block

Example:

0

data.blockroot

string

Hash tree root of the beacon block header (0x-prefixed hex)

Example:

"0xeb64c069b979ef8eed41993ec0563f1ed0e935b95fcbe9ed26de4c904c94aeb3"

data.depositscount

integer

Number of deposit operations included in this block

Example:

10

data.epoch

integer

Beacon chain epoch that contains this slot

Example:

398479

data.eth1data_blockhash

string

Execution-layer block hash voted in the Eth1Data of this block (0x-prefixed hex)

Example:

"0xeb64c069b979ef8eed41993ec0563f1ed0e935b95fcbe9ed26de4c904c94aeb3"

data.eth1data_depositcount

integer

Cumulative number of deposits as reported in Eth1Data

Example:

2045305

data.eth1data_depositroot

string

Deposit tree root as reported in Eth1Data (0x-prefixed hex)

Example:

"0x2ebc563cabdbbacbc56f0de1d2d1c2d5315a4b071fcd8566aabbf0a45161c64e"

data.exec_base_fee_per_gas

integer | null

EIP-1559 base fee per gas for the embedded execution payload in wei per gas; null if no payload

Example:

680634007

data.exec_block_hash

string | null

Hash of the execution-layer block included as the payload; null if no payload

Example:

"0x1f97b8eb2444d4fcdfd8dade8a9f8630860acca3ce694f800881fab642eace6c"

data.exec_block_number

integer | null

Number of the execution-layer block included as the payload; null if no payload

Example:

23525866

data.exec_extra_data

string | null

Extra data field from the execution block header (0x-prefixed hex); null if no payload

Example:

"0x546974616e2028746974616e6275696c6465722e78797a29"

data.exec_fee_recipient

string | null

Fee recipient (coinbase) address of the execution payload; null if no payload

Example:

"0x4838b106fce9647bdf1e7877bf73ce8b0bad5f97"

data.exec_gas_limit

integer | null

Gas limit of the execution payload block; null if no payload

Example:

23525866

data.exec_gas_used

integer | null

Gas used by the execution payload block; null if no payload

Example:

23525866

data.exec_logs_bloom

string | null

Logs bloom filter from the execution block header; null if no payload

Example:

"0x54a8a16a45119f9fd52558acccb035c9154b9b509664b87dcfdd129d7499b0a1249dd137bfed0146da934b6b47ea75dc77d1c67bac137b0914da37d4686c97ceba768dfa4ed0fcb8ed34d1ab91e99aa164663e32e7fe79386b627cba1e9cde870b71a9eabb4"

data.exec_parent_hash

string | null

Parent hash of the execution payload block; null if no payload

Example:

"0x3f9eeb7bbcfa68b70ed5b15fe0476c0cd594a025032ad6522c2f087922393b3e"

data.exec_random

string | null

prevRandao (mixHash) value in the execution block header; null if no payload

Example:

"0x2a9ef3da82054fe160d54973c8f7ce9482ff1ef0c09262d9a86e3641d1d52131"

data.exec_receipts_root

string | null

Receipts root of the execution payload block; null if no payload

Example:

"0xbc1799c451b10b1689e540333ca2f9dac9a86a9654075a0d141385d6bbb8ceed"

data.exec_state_root

string | null

State root of the execution payload block; null if no payload

Example:

"0x8e251e0dd4aaf308b5c899c8f659e6de984aad11f4df85468d6cbf9edfa7ce48"

data.exec_timestamp

integer | null

Timestamp of the execution payload block (Unix seconds); null if no payload

Example:

1759839959

data.exec_transactions_count

integer | null

Number of transactions included in the execution payload; null if no payload

Example:

3

data.graffiti

string

32-byte graffiti field from the beacon block body as 0x-prefixed hex

Example:

"0x544b373536390000000000000000000000000000000000000000000000000000"

data.graffiti_text

string

Graffiti rendered as UTF-8 text when printable; may be empty if not decodable

Example:

"TK7569"

data.parentroot

string

Root of the parent beacon block header (0x-prefixed hex)

Example:

"0x36ed53a94a32b494b3a26fbbb56c2ce2af9cf657a7c3975da96faf0fba66c2c2"

data.proposer

integer

Index of the validator that proposed this block

Example:

1098947

data.proposerslashingscount

integer

Number of proposer slashing operations included in this block

Example:

0

data.randaoreveal

string

Proposer's RANDAO reveal (BLS signature) contributing to beacon chain randomness (0x-prefixed hex)

Example:

"0x8add195bc76c9cd723730cd4dae3098663f3e0257a543ed8ca4273471e1983c8c937ee37b95c7c30c5e91bf6a19b81a60f11bbb41014e45674e57566dba923b6c26b17911f811af04b28dce9020bb54b6f8de38bb63b8a0f9c4902357700e85b"

data.signature

string

BLS signature of the beacon block header (0x-prefixed hex)

Example:

"0xab6b6d826c14b6141e3406c5227ead15b133993195e96edc05fdeba998d0e0fd96e4ec5f47f6c9eec1558a59042c03d1016e679faf7300bc14737c7178c5cc01b2ea5f345e13cc2e29eeeefaf18cdcde6c0a99d80923ecf8ff8619a4d2511f6e"

data.slot

integer

Beacon slot number of this block

Example:

12751457

data.stateroot

string

Root of the beacon state in the block header (0x-prefixed hex)

Example:

"0xb4373fdde2b7e43692937e6982a853b747ae3ec2ec4721bee538f4770229415d"

data.status

string

Block status code: '0' scheduled, '1' proposed (canonical), '2' missed, '3' orphaned

Example:

"1"

data.syncaggregate_bits

string

512-bit bitfield (0x-prefixed hex) indicating which sync committee members participated; one bit per member.

Example:

"0xaf6d5ffa3fddbdd7a82286f7dd17b87bfdbbbf17733beda97eef74bfffdeff7fdf7dd1effdf0d3ffbf23feb97bf463febfb0edcceef65fea77fdbdcfb50edbf1"

data.syncaggregate_participation

number

Participation ratio of the sync committee for this block (0..1)

Example:

0.990234375

data.syncaggregate_signature

string

Aggregated BLS signature of the sync committee for this block (0x-prefixed hex)

Example:

"0xaa7c2f8db87e82ed4e45e0c328918f0f1ca88d6bdc1e20933816b22e3965099d2fcaa6960e76959921c0d6b5b7a73d1203e3bceaf2a23436f9eedc072d924b4270f21c57356ca99813e63b44dd4f363abc49466114b05736ef925d9330f93dd5"

data.voluntaryexitscount

integer

Number of voluntary exit operations included in this block

Example:

0

data.withdrawalcount

integer

Number of withdrawals included in the execution payload of this block

Example:

16

Epoch slots

Attestations for a slot

Introduction

API Docs

Slot overview

Authorizations

Path Parameters

Response