APIs introduction
Ethereum node API
- Getting started | Ethereum
- Enable Debug & Trace APIs for your Ethereum Node
- Ethereum API Postman Collection
- Blocks info | Ethereum
- Transactions info | Ethereum
- Executing transactions | Ethereum
- Debug and Trace | Ethereum
- Chain info | Ethereum
- Gas data | Ethereum
- Accounts info | Ethereum
- Logs & events | Ethereum
- Client information | Ethereum
- Filter handling | Ethereum
- Subscriptions | Ethereum
Ethereum Beacon Chain API
- Getting tarted | Beacon Chain
- Beacon Chain configuration info
- Beacon Chain events
- Beacon Chain validators info
- Beacon Chain state
- Overview
- GETBlock root by block_id
- GETBlock by block_id
- GETBeacon headers by block_id
- GETBeacon headers by slot
- GETSync committee contribution
- GETSync committees by state and epoch
- GETCommittees by state, epoch, index, and slot
- GETFinality checkpoints for a given state
- GETRoot of a given state
- GETRetrieve blob sidecar by slot
Polygon node API
- Getting started | Polygon
- Blocks Info | Polygon
- Transactions info | Polygon
- Executing transactions | Polygon
- Debug & Trace | Polygon
- Chain info | Polygon
- Gas data | Polygon
- Accounts info | Polygon
- Logs & events | Polygon
- Filter handling | Polygon
- Client information | Polygon
- Subscriptions | Polygon
BNB node API
- Getting started | BNB Chain
- Endpoints
Base node API
- Getting started | Base
- Endpoints
Avalanche node API
- Getting started | Avalanche
- Blocks Info | Avalanche
- Transactions info | Avalanche
- Executing transactions | Avalanche
- Debug & Trace | Avalanche
- Chain info | Avalanche
- Gas data | Avalanche
- Accounts info | Avalanche
- Logs & events | Avalanche
- Filter handling | Avalanche
- Client information | Avalanche
- Subscriptions | Avalanche
TON node API
- Getting started | TON
- Getting started | TON
- GETgetAddressInformation | TON v2
- GETgetExtendedAddressInformation | TON v2
- GETgetWalletInformation | TON v2
- GETgetTransactions | TON v2
- GETgetAddressBalance | TON v2
- GETgetAddressState | TON v2
- GETpackAddress | TON v2
- GETunpackAddress | TON v2
- GETgetTokenData | TON v2
- GETdetectAddress | TON v2
- GETgetMasterchainInfo | TON v2
- GETgetMasterchainBlockSignatures | TON v2
- GETgetShardBlockProof | TON v2
- GETgetConsensusBlock | TON v2
- GETlookupBlock | TON v2
- GETshards | TON v2
- GETgetBlockTransactions | TON v2
- GETgetBlockTransactionsExt | TON v2
- GETgetBlockHeader | TON v2
- GETtryLocateTx | TON v2
- GETtryLocateResultTx | TON v2
- GETtryLocateSourceTx | TON v2
- GETgetConfigParam | TON v2
- POSTrunGetMethod | TON v2
- GETmasterchainInfo | TON v3
- GETblocks | TON v3
- GETmasterchainBlockShardState | TON v3
- GETaddressBook | TON v3
- GETmasterchainBlockShards | TON v3
- GETtransactions | TON v3
- GETtransactionsByMasterchainBlock | TON v3
- GETtransactionsByMessage | TON v3
- GETadjacentTransactions | TON v3
- GETmessages | TON v3
- GETnft/collections | TON v3
- GETnft/items | TON v3
- GETnft/transfers | TON v3
- GETjetton/masters | TON v3
- GETjetton/wallets | TON v3
- GETjetton/transfers | TON v3
- GETjetton/burns | TON v3
- POSTrunGetMethod | TON v3
- POSTestimateFee | TON v3
- GETaccount | TON v3
- GETwallet | TON v3
Arbitrum node API
- Getting Started | Arbitrum
- Blocks info | Arbitrum
- Transactions info | Arbitrum
- Executing transactions | Arbitrum
- Debug & Trace | Arbitrum
- Chain info | Arbitrum
- Gas data | Arbitrum
- Accounts info | Arbitrum
- Logs & events | Arbitrum
- Filter handling | Arbitrum
- Client information | Arbitrum
- Subscriptions | Arbitrum
Zksync node API
- Getting started | ZKsync
- Getting started | ZKsync
- POSTzks_L1ChainId | zkSync Era
- POSTzks_estimateFee | zkSync Era
- POSTzks_estimateGasL1ToL2 | zkSync Era
- POSTzks_getAllAccountBalances | zkSync Era
- POSTzks_getBlockDetails | zkSync Era
- POSTzks_getBridgeContracts | zkSync Era
- POSTzks_getBytecodeByHash | zkSync Era
- POSTzks_getL1BatchBlockRange | zkSync Era
- POSTzks_getL1BatchDetails | zkSync Era
- POSTzks_getL2ToL1LogProof | zkSync Era
- POSTzks_getMainContract | zkSync Era
- POSTzks_getRawBlockTransactions | zkSync Era
- POSTzks_getTestnetPaymaster | zkSync Era
- POSTzks_getTransactionDetails | zkSync Era
- POSTzks_L1BatchNumber | zkSync Era
Polygon zkEVM node API
- Getting started
- zkEVM methods | Polygon zkEVM
- POSTeth_blockNumber | zkEVM
- POSTeth_getBlockByNumber | zkEVM
- POSTeth_getBlockByHash | zkEVM
- POSTeth_getBlockTransactionCountByNumber | zkEVM
- POSTeth_getBlockTransactionCountByHash | zkEVM
- POSTeth_newBlockFilter | zkEVM
- POSTeth_getTransactionByHash | zkEVM
- POSTeth_getTransactionReceipt | zkEVM
- POSTeth_getTransactionByBlockNumberAndIndex | zkEVM
- POSTeth_getTransactionByBlockHashAndIndex | zkEVM
- POSTeth_newPendingTransactionFilter | zkEVM
- POSTeth_call | zkEVM
- POSTeth_sendRawTransaction | zkEVM
- POSTeth_getBalance | zkEVM
- POSTeth_getCode | zkEVM
- POSTeth_getStorageAt | zkEVM
- POSTeth_getTransactionCount | zkEVM
- POSTeth_chainId | zkEVM
- POSTeth_syncing | zkEVM
- POSTweb3_clientVersion | zkEVM
- POSTeth_estimateGas | zkEVM
- POSTeth_gasPrice | zkEVM
- POSTeth_getLogs | zkEVM
- POSTeth_newFilter | zkEVM
- POSTeth_getFilterChanges | zkEVM
- POSTeth_uninstallFilter | zkEVM
Optimism node API
- Getting started | Optimism
- POSTeth_blockNumber | Optimism
- POSTeth_getBlockByHash | Optimism
- POSTeth_getBlockByNumber | Optimism
- POSTeth_getBlockTransactionCountByHash | Optimism
- POSTeth_getBlockTransactionCountByNumber | Optimism
- POSTeth_getUncleCountByBlockHash | Optimism
- POSTeth_getUncleCountByBlockNumber | Optimism
- POSTeth_getBlockReceipts | Optimism
- POSTeth_chainId | Optimism
- POSTeth_syncing | Optimism
- POSTeth_call | Optimism
- POSTeth_estimateGas | Optimism
- POSTeth_createAccessList | Optimism
- POSTeth_gasPrice | Optimism
- POSTeth_feeHistory | Optimism
- POSTeth_newFilter | Optimism
- POSTeth_newBlockFilter | Optimism
- POSTeth_uninstallFilter | Optimism
- POSTeth_getFilterChanges | Optimism
- POSTeth_getFilterLogs | Optimism
- POSTeth_getLogs | Optimism
- POSTeth_getBalance | Optimism
- POSTeth_getStorageAt | Optimism
- POSTeth_getTransactionCount | Optimism
- POSTeth_getCode | Optimism
- POSTeth_getProof | Optimism
- POSTeth_getTransactionByHash | Optimism
- POSTeth_getRawTransactionByHash | Optimism
- POSTeth_getTransactionByBlockHashAndIndex | Optimism
- POSTeth_getRawTransactionByBlockHashAndIndex | Optimism
- POSTeth_getTransactionByBlockNumberAndIndex | Optimism
- POSTeth_getRawTransactionByBlockNumberAndIndex | Optimism
- POSTeth_getTransactionReceipt | Optimism
- eth_subscribe newHeads | Optimism
- eth_subscribe logs | Optimism
- eth_unsubscribe | Optimism
- POSTeth_maxPriorityFeePerGas | Optimism
- POSTeth_sendRawTransaction | Optimism
- POSTweb3_clientVersion | Optimism
- POSTweb3_sha3 | Optimism
- POSTnet_listening | Optimism
- POSTeth_callMany | Optimism
- POSTdebug_getModifiedAccountsByNumber | Optimism
- POSTdebug_getModifiedAccountsByHash | Optimism
- POSTdebug_storageRangeAt | Optimism
- POSTdebug_traceBlockByHash | Optimism
- POSTdebug_traceBlockByNumber | Optimism
- POSTdebug_traceTransaction | Optimism
- POSTdebug_traceCall | Optimism
- POSTdebug_traceCallMany | Optimism
Aurora node API
- Getting started | Aurora
- POSTeth_blockNumber | Aurora
- POSTeth_getBlockByNumber | Aurora
- POSTeth_getBlockByHash | Aurora
- POSTeth_getBlockTransactionCountByNumber | Aurora
- POSTeth_getBlockTransactionCountByHash | Aurora
- POSTeth_newBlockFilter | Aurora
- POSTeth_getTransactionByHash | Aurora
- POSTeth_getTransactionReceipt | Aurora
- POSTeth_getTransactionByBlockNumberAndIndex | Aurora
- POSTeth_getTransactionByBlockHashAndIndex | Aurora
- POSTeth_newPendingTransactionFilter | Aurora
- POSTeth_call | Aurora
- POSTeth_sendRawTransaction | Aurora
- POSTeth_getBalance | Aurora
- POSTeth_getCode | Aurora
- POSTeth_getStorageAt | Aurora
- POSTeth_getTransactionCount | Aurora
- POSTeth_chainId | Aurora
- POSTeth_syncing | Aurora
- POSTweb3_clientVersion | Aurora
- POSTnet_listening | Aurora
- POSTnet_peerCount | Aurora
- POSTeth_estimateGas | Aurora
- POSTeth_gasPrice | Aurora
- POSTeth_getLogs | Aurora
- POSTeth_newFilter | Aurora
- POSTeth_getFilterChanges | Aurora
- POSTeth_uninstallFilter | Aurora
Solana node API
- Getting started | Solana
- POSTgetAccountInfo | Solana
- POSTgetBalance | Solana
- POSTgetBlockHeight | Solana
- POSTgetBlock | Solana
- POSTgetBlockProduction | Solana
- POSTgetBlockCommitment | Solana
- POSTgetBlocks | Solana
- POSTgetBlocksWithLimit | Solana
- POSTgetBlockTime | Solana
- POSTgetClusterNodes | Solana
- POSTgetEpochInfo | Solana
- POSTgetEpochSchedule | Solana
- POSTgetFeeForMessage | Solana
- POSTgetFirstAvailableBlock | Solana
- POSTgetGenesisHash | Solana
- POSTgetHighestSnapshotSlot | Solana
- POSTgetIdentity | Solana
- POSTgetInflationGovernor | Solana
- POSTgetInflationRate | Solana
- POSTgetInflationReward | Solana
- POSTgetLatestBlockhash | Solana
- POSTgetLeaderSchedule | Solana
- POSTgetMaxRetransmitSlot | Solana
- POSTgetMaxShredInsertSlot | Solana
- POSTgetMinimumBalanceForRentExemption | Solana
- POSTgetMultipleAccounts | Solana
- POSTgetProgramAccounts | Solana
- POSTgetRecentBlockhash | Solana
- POSTgetRecentPerformanceSamples | Solana
- POSTgetRecentPrioritizationFees | Solana
- POSTgetSignaturesForAddress | Solana
- POSTgetSignatureStatuses | Solana
- POSTgetSlot | Solana
- POSTgetSlotLeader | Solana
- POSTgetStakeActivation | Solana
- POSTgetStakeMinimumDelegation | Solana
- POSTgetSupply | Solana
- POSTgetTokenAccountBalance | Solana
- POSTgetTokenAccountsByOwner | Solana
- POSTgetTokenLargestAccounts | Solana
- POSTgetLargestAccounts | Solana
- POSTgetTransaction | Solana
- POSTisBlockhashValid | Solana
- POSTsimulateTransaction | Solana
- logsSubscribe | Solana
- logsUnsubscribe | Solana
- blockSubscribe | Solana
- blockUnsubscribe | Solana
- accountSubscribe | Solana
- accountUnsubscribe | Solana
- programSubscribe | Solana
- programUnsubscribe | Solana
- rootSubscribe | Solana
- rootUnsubscribe | Solana
- signatureSubscribe | Solana
- signatureUnsubscribe | Solana
- slotSubscribe | Solana
- slotUnsubscribe | Solana
- slotsUpdatesSubscribe | Solana
- slotsUpdatesUnsubscribe | Solana
Ronin node API
- Getting started | Ronin
- POSTeth_blockNumber | Ronin
- POSTeth_getBlockByHash | Ronin
- POSTeth_getBlockByNumber | Ronin
- POSTeth_getBlockTransactionCountByHash | Ronin
- POSTeth_getBlockTransactionCountByNumber | Ronin
- POSTeth_newBlockFilter | Ronin
- POSTeth_getTransactionByHash | Ronin
- POSTeth_getTransactionReceipt | Ronin
- POSTeth_getTransactionByBlockHashAndIndex | Ronin
- POSTeth_getTransactionByBlockNumberAndIndex | Ronin
- POSTeth_getFilterChanges | Ronin
- POSTeth_call | Ronin
- POSTeth_sendRawTransaction | Ronin
- POSTdebug_traceBlockByHash | Ronin
- POSTdebug_traceBlockByNumber | Ronin
- POSTdebug_traceTransaction | Ronin
- POSTdebug_traceCall | Ronin
- POSTeth_chainId | Ronin
- POSTeth_syncing | Ronin
- POSTeth_estimateGas | Ronin
- POSTeth_gasPrice | Ronin
- POSTeth_maxPriorityFeePerGas | Ronin
- POSTeth_getTransactionCount | Ronin
- POSTeth_getBalance | Ronin
- POSTeth_getCode | Ronin
- POSTeth_getStorageAt | Ronin
- POSTeth_getLogs | Ronin
- POSTeth_newFilter | Ronin
- POSTweb3_clientVersion | Ronin
- POSTnet_listening | Ronin
- POSTnet_peerCount | Ronin
- POSTeth_getFilterChanges | Ronin
- POSTeth_uninstallFilter | Ronin
- eth_subscribe ("newHeads") | Ronin
- eth_subscribe("newPendingTransactions") | Ronin
- eth_subscribe ("logs") | Ronin
- eth_unsubscribe | Ronin
Gnosis Chain node API
- Getting started | Gnosis
- Beacon Chain | Gnosis
- Blocks info | Gnosis
- Transactions info | Gnosis
- Executing transactions | Gnosis
- Chain info | Gnosis
- Gas data | Gnosis
- Accounts info | Gnosis
- Logs & events | Gnosis
- Filter handling | Gnosis
- Client information | Gnosis
- Subscriptions | Gnosis
Cronos node API
- Getting started | Cronos
- POSTeth_blockNumber | Cronos
- POSTeth_getBlockByNumber | Cronos
- POSTeth_getBlockByHash | Cronos
- POSTeth_getBlockTransactionCountByNumber | Cronos
- POSTeth_getBlockTransactionCountByHash | Cronos
- POSTeth_newBlockFilter | Cronos
- POSTeth_getTransactionByHash | Cronos
- POSTeth_getTransactionReceipt | Cronos
- POSTeth_getTransactionByBlockNumberAndIndex | Cronos
- POSTeth_getTransactionByBlockHashAndIndex | Cronos
- POSTeth_newPendingTransactionFilter | Cronos
- POSTeth_call | Cronos
- POSTeth_sendRawTransaction | Cronos
- POSTeth_getBalance | Cronos
- POSTeth_getCode | Cronos
- POSTeth_getStorageAt | Cronos
- POSTeth_getProof | Cronos
- POSTeth_getTransactionCount | Cronos
- POSTeth_chainId | Cronos
- POSTeth_syncing | Cronos
- POSTweb3_clientVersion | Cronos
- POSTnet_listening | Cronos
- POSTnet_peerCount | Cronos
- POSTeth_estimateGas | Cronos
- POSTeth_gasPrice | Cronos
- POSTeth_maxPriorityFeePerGas | Cronos
- POSTeth_getLogs | Cronos
- POSTeth_newFilter | Cronos
- POSTeth_getFilterChanges | Cronos
- POSTeth_uninstallFilter | Cronos
Fantom node API
- Getting started | Fantom
- POSTeth_blockNumber | Fantom
- POSTeth_getBlockByNumber | Fantom
- POSTeth_getBlockByHash | Fantom
- POSTeth_getBlockTransactionCountByNumber | Fantom
- POSTeth_getBlockTransactionCountByHash | Fantom
- POSTeth_newBlockFilter | Fantom
- POSTeth_getTransactionByHash | Fantom
- POSTeth_getTransactionReceipt | Fantom
- POSTeth_getTransactionByBlockNumberAndIndex | Fantom
- POSTeth_getTransactionByBlockHashAndIndex | Fantom
- POSTeth_newPendingTransactionFilter | Fantom
- POSTeth_call | Fantom
- POSTeth_sendRawTransaction | Fantom
- POSTeth_getBalance | Fantom
- POSTeth_getCode | Fantom
- POSTeth_getStorageAt | Fantom
- POSTeth_getProof | Fantom
- POSTeth_getTransactionCount | Fantom
- POSTeth_chainId | Fantom
- POSTeth_syncing | Fantom
- POSTweb3_clientVersion | Fantom
- POSTnet_listening | Fantom
- POSTnet_peerCount | Fantom
- POSTeth_estimateGas | Fantom
- POSTeth_gasPrice | Fantom
- POSTeth_maxPriorityFeePerGas | Fantom
- POSTeth_getLogs | Fantom
- POSTeth_newFilter | Fantom
- POSTeth_getFilterChanges | Fantom
- POSTeth_uninstallFilter | Fantom
- Custom JS tracer | Fantom
- debug traceBlockByHash | Fantom Chain
- debug traceBlockByNumber | Fantom
- debug traceTransaction | Fantom
- trace block | Fantom
- trace transaction | Fantom
- trace filter | Fantom
- trace get | Fantom
Bitcoin node API
- Bitcoin API reference
- Bitcoin API Postman collection
- POSTgetbestblockhash | Bitcoin
- POSTgetblock | Bitcoin
- POSTgetblockchaininfo | Bitcoin
- POSTgetblockfilter | Bitcoin
- POSTgetblockhash | Bitcoin
- POSTgetblockheader | Bitcoin
- POSTgetblockstats | Bitcoin
- POSTgetchaintips | Bitcoin
- POSTgetchaintxstats | Bitcoin
- POSTgetdifficulty | Bitcoin
- POSTgetmempoolancestors | Bitcoin
- POSTgetmempooldescendants | Bitcoin
- POSTgetmempoolentry | Bitcoin
- POSTgetmempoolinfo | Bitcoin
- POSTgetrawmempool | Bitcoin
- POSTgettxoutsetinfo | Bitcoin
- POSTgettxout | Bitcoin
- POSTverifychain | Bitcoin
- POSTgettxoutproof | Bitcoin
- POSTpreciousblock | Bitcoin
- POSTverifytxoutproof | Bitcoin
- POSTuptime | Bitcoin
- POSTgetmemoryinfo | Bitcoin
- POSTgetrpcinfo | Bitcoin
- POSTgetblocktemplate | Bitcoin
- POSTgetmininginfo | Bitcoin
- POSTgetnetworkhashps | Bitcoin
- POSTprioritisetransaction | Bitcoin
- POSTgetpeerinfo | Bitcoin
- POSTgetnetworkinfo | Bitcoin
- POSTgetconnectioncount | Bitcoin
- POSTgetnettotals | Bitcoin
- POSTlistbanned | Bitcoin
- POSTping | Bitcoin
- POSTgetnodeaddresses | Bitcoin
- POSTdecodescript | Bitcoin
- POSTdecoderawtransaction | Bitcoin
- POSTgetrawtransaction | Bitcoin
- POSTestimatesmartfee | Bitcoin
- POSTvalidateaddress | Bitcoin
Starknet node API
- Getting started | Starknet
- POSTstarknet_call | Starknet
- POSTstarknet_estimateFee | Starknet
- POSTstarknet_estimateMessageFee | Starknet
- POSTstarknet_simulateTransactions | Starknet
- POSTstarknet_traceBlockTransactions | Starknet
- POSTstarknet_getClassHashAt | Starknet
- POSTstarknet_getNonce | Starknet
- POSTstarknet_getStorageAt | Starknet
- POSTstarknet_getTransactionByBlockIdAndIndex | Starknet
- POSTstarknet_getTransactionByHash | Starknet
- POSTstarknet_getClassAt | Starknet
Chainstack platform API
- Getting started
- Quick tutorial
- Organization
- Project
- Network
- Node
- Marketplace
- IPFS storage
- Faucet
Committees by state, epoch, index, and slot
curl --request GET \
--url https://beacon-nd-422-757-666.p2pify.com/0a9d79d93fb2f4a4b1e04695da2b77a7/eth/v1/beacon/states/{state_id}/committees
{
"data": [
{
"index": 123,
"slot": 123,
"validators": [
123
]
}
]
}
No response in the interactive API
The response to the call might be too big for ReadMe to handle, so if you are not getting it here, copy the CURL example and run in your terminal—this will work.
The eth/v1/beacon/states/{state_id}/committees
method is a significant API endpoint in the Ethereum Beacon Chain. It provides comprehensive information about the committees for a given state. In the context of Ethereum, committees are groups of validators assigned to specific duties, such as proposing and attesting to blocks. Understanding the composition and assignments of these committees is crucial for validators and network participants, as it impacts their roles and responsibilities in the network’s consensus process.
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Parameters
{state_id}
: This parameter specifies the state identifier for which the committee information is being requested. It can be a specific slot number, an epoch number, a block root, or special values like ‘genesis’ or ‘head’.
Response
array
— list of committee objects.- Each
object
in the array represents a committee at the specified state, containing:index
— the index or identifier of the committee. This is used to distinguish different committees within the same epoch or state.slot
— the slot number at which the committee is assigned duties. Slots are discrete time intervals in the Beacon Chain when various operations occur.validators
— a list of validator indices that are members of this committee. These indices identify the specific validators assigned to the committee’s duties.
- Each
The eth/v1/beacon/states/{state_id}/committees
method is vital for validators and network operators in the Ethereum ecosystem. It provides essential insights into how validators are grouped into committees and assigned duties, which is fundamental to the network’s operation and security.
Path Parameters
State identifier, e.g., 'head', 'finalized', 'genesis', or a specific slot number.
Query Parameters
Epoch number
194213
Committee index
1
Slot number
curl --request GET \
--url https://beacon-nd-422-757-666.p2pify.com/0a9d79d93fb2f4a4b1e04695da2b77a7/eth/v1/beacon/states/{state_id}/committees
{
"data": [
{
"index": 123,
"slot": 123,
"validators": [
123
]
}
]
}