# Abstract

> Pages under Abstract in the Alchemy Docs.

## Pages

- [Quickstart](https://www.alchemy.com/docs/reference/abstract-api-quickstart.md): How to get started building on Abstract using Alchemy
- [Abstract API Overview](https://www.alchemy.com/docs/abstract/abstract-api-overview.md): Overview of available Abstract API methods
- [eth_accounts](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-accounts.md): Returns a list of addresses owned by the client.
- [eth_blockNumber](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-block-number.md): Returns the number of the most recent block.
- [eth_call](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-call.md): Executes a new message call immediately without creating a transaction on the blockchain.
- [eth_chainId](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-chain-id.md): Returns the chain ID of the current network as a hexadecimal string.
- [eth_estimateGas](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-estimate-gas.md): Generates and returns an estimate of how much gas is necessary to allow the transaction to complete.
- [eth_feeHistory](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-fee-history.md): Returns historical base fee per gas and priority fee per gas data for a range of blocks.
- [eth_fillTransaction](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-fill-transaction.md): Fills in default values for a transaction object. This method populates missing fields such as gas, gasPrice, nonce, and chainId based on the current network state and transaction parameters. It returns both the filled transaction object and the RLP-encoded raw transaction data.

This is useful for preparing transactions before signing, as it ensures all required fields are present with appropriate values.

- [eth_gasPrice](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-gas-price.md): Returns the current price per gas in wei.
- [eth_getAccount](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-account.md): Retrieve account details (code hash, storage root, balance, nonce) for a given address at a specified block number or tag.

- [eth_getAccountInfo](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-account-info.md): Retrieves account information including balance, code, and nonce for a given address at a specified block.
- [eth_getBalance](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-balance.md): Returns the balance of the account of a given address.
- [eth_getBlockByHash](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-block-by-hash.md): Returns information about a block by its hash.
- [eth_getBlockByNumber](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-block-by-number.md): Returns information about a block by its number.
- [eth_getBlockReceipts](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-block-receipts.md): Returns the receipts of a block by number or hash.
- [eth_getBlockTransactionCountByHash](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-block-transaction-count-by-hash.md): Returns the number of transactions in a block from a block matching the given block hash.
- [eth_getBlockTransactionCountByNumber](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-block-transaction-count-by-number.md): Returns the number of transactions in a block matching the given block number.
- [eth_getCode](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-code.md): Returns the code at a given address.
- [eth_getFilterChanges](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-filter-changes.md): Polls for changes in the filter with the given ID (created using eth_newFilter). Returns an array of logs which occurred since the last poll.
- [eth_getFilterLogs](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-filter-logs.md): Returns an array of all logs matching the filter with the given ID (created using eth_newFilter).
- [eth_getLogs](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-logs.md): Returns an array of all logs matching the specified filter.
- [eth_getRawTransactionByHash](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-raw-transaction-by-hash.md): Returns the raw transaction data (RLP-encoded) for a transaction by its hash.
- [eth_getStorageAt](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-storage-at.md): Returns the value from a storage position at a given address.
- [eth_getTransactionByBlockHashAndIndex](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-transaction-by-block-hash-and-index.md): Returns information about a transaction by block hash and transaction index position.
- [eth_getTransactionByBlockNumberAndIndex](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-transaction-by-block-number-and-index.md): Returns information about a transaction by block number and transaction index position.
- [eth_getTransactionByHash](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-transaction-by-hash.md): Returns information about a transaction requested by transaction hash.
- [eth_getTransactionCount](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-transaction-count.md): Returns the number of transactions sent from an address.
- [eth_getTransactionReceipt](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-transaction-receipt.md): Returns the receipt of a transaction by transaction hash.
- [eth_getUncleCountByBlockHash](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-uncle-count-by-block-hash.md): Returns the number of uncles in a block matching the given block hash.
- [eth_getUncleCountByBlockNumber](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-get-uncle-count-by-block-number.md): Returns the number of uncles in a block matching the given block number.
- [eth_maxPriorityFeePerGas](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-max-priority-fee-per-gas.md): Returns the current maximum priority fee per gas in wei.
- [eth_newBlockFilter](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-new-block-filter.md): Creates a filter in the node to notify when new blocks arrive.
- [eth_newFilter](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-new-filter.md): Creates a filter object based on filter options to notify when state changes (logs).
- [eth_newPendingTransactionFilter](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-new-pending-transaction-filter.md): Creates a filter in the node to notify when new pending transactions arrive.
- [eth_protocolVersion](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-protocol-version.md): Returns the current protocol version used by the client.
- [eth_sendRawTransaction](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-send-raw-transaction.md): Submits a raw transaction to the network.
- [eth_submitWork](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-submit-work.md): Submit a proof-of-work solution (Ethash) consisting of a nonce, the header PoW hash, and the mix digest. Not supported on post-Merge Ethereum clients; many nodes will return JSON-RPC error -32601 (method not found).

- [eth_subscribe](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-subscribe.md): Subscribe to Ethereum events via WebSocket (WSS required)
- [eth_syncing](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-syncing.md): Returns an object with data about the sync status or false if not syncing.
- [eth_uninstallFilter](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-uninstall-filter.md): Uninstalls a filter with the given ID.
- [eth_unsubscribe](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/eth-unsubscribe.md): Cancel a WebSocket subscription (WSS required)
- [net_listening](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/net-listening.md): Returns true if the client is actively listening for network connections.
- [net_peerCount](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/net-peer-count.md): Get peer count
- [net_version](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/net-version.md): Returns the network ID that the client is connected to.
- [web3_clientVersion](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/web-3-client-version.md): Returns the current client version.
- [web3_sha3](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/web-3-sha-3.md): Returns Keccak-256 (not the standardized SHA3-256) hash of the given data.
- [zks_estimateFee](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-estimate-fee.md): Estimates the fee for a given call request.
- [zks_estimateGasL1ToL2](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-estimate-gas-l-1-to-l-2.md): Estimates the gas required for an L1 to L2 transaction.
- [zks_gasPerPubdata](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-gas-per-pubdata.md): Retrieves the current gas per pubdata byte
- [zks_getAllAccountBalances](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-all-account-balances.md): Gets all account balances for a given address.
- [zks_getBaseTokenL1Address](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-base-token-l-1-address.md): Retrieves the L1 base token address.
- [zks_getBlockDetails](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-block-details.md): Retrieves details for a given block.
- [zks_getBridgeContracts](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-bridge-contracts.md): Retrieves the addresses of canonical bridge contracts for zkSync Era.
- [zks_getBridgehubContract](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-bridgehub-contract.md): Retrieves the address of the zkSync bridgehub contract.
- [zks_getBytecodeByHash](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-bytecode-by-hash.md): Retrieves the bytecode of a transaction by its hash.
- [zks_getConfirmedTokens](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-confirmed-tokens.md): Retrieves the confirmed tokens on zkSync.
- [zks_getFeeParams](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-fee-params.md): Retrieves the current fee parameters.
- [zks_getL1BatchBlockRange](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-l-1-batch-block-range.md): Returns the range of blocks contained within a batch given by the batch number.
- [zks_getL1BatchDetails](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-l-1-batch-details.md): Retrieves details for a given L1 batch.
- [zks_getL1GasPrice](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-l-1-gas-price.md): Retrieves the current L1 gas price.
- [zks_getL2ToL1LogProof](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-l-2-to-l-1-log-proof.md): Retrieves the log proof for an L2 to L1 transaction.
- [zks_getL2ToL1MsgProof](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-l-2-to-l-1-msg-proof.md): Retrieves the proof for an L2 to L1 message.
- [zks_getMainContract](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-main-contract.md): Retrieves the address of the zkSync main contract.
- [zks_getProof](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-proof.md): Generates Merkle proofs for storage values associated with a specific account.
- [zks_getProtocolVersion](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-protocol-version.md): Retrieves the current protocol version.
- [zks_getRawBlockTransactions](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-raw-block-transactions.md): Lists transactions in a block without processing them.
- [zks_getTestnetPaymaster](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-testnet-paymaster.md): Retrieves the testnet paymaster address.
- [zks_getTransactionDetails](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-get-transaction-details.md): Retrieves details for a given transaction.
- [zks_L1BatchNumber](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-l-1-batch-number.md): Retrieves the current L1 batch number.
- [zks_L1ChainId](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-l-1-chain-id.md): Retrieves the L1 chain ID.
- [zks_sendRawTransactionWithDetailedOutput](https://www.alchemy.com/docs/chains/abstract/abstract-api-endpoints/zks-send-raw-transaction-with-detailed-output.md): Executes a transaction and returns its hash, storage logs, and events that would have been generated if the transaction had already been included in the block.
- [FAQ](https://www.alchemy.com/docs/reference/abstract-api-faq.md): Frequently asked questions about the Abstract API