--- updatedAt: 2026-08-19T15:58:56.000Z --- Fetch the complete documentation index at: https://docs.blockdaemon.com/llms.txt. Use this file to discover all available pages before exploring further. Append .md to any documentation page URL to get its markdown version. # Base > 📘 > > See the [Base RPC API connection guide](https://docs.blockdaemon.com/docs/access-base-rpc). ### `eth` | Method | Notes | Compute Unit Value | | -------------------------------------------- | ------------------------------------------------------------------------------------ | ------------------ | | `eth_blockNumber` | Returns the number of the most recent block. | 1 | | `eth_call` | Executes a message call without creating a transaction on the blockchain. | 10 | | `eth_chainId` | Returns the chain identifier as a hexadecimal quantity. | 1 | | `eth_estimateGas` | Estimates the gas required to execute a transaction. | 50 | | `eth_feeHistory` | Returns fee-market data for a requested range of blocks. | 1 | | `eth_gasPrice` | Returns the current gas price per unit of gas as a hexadecimal quantity. | 5 | | `eth_getBalance` | Returns an account's balance at a specified block. | 5 | | `eth_getBlockByHash` | Returns a block by hash, with either full transaction objects or transaction hashes. | 5 | | `eth_getBlockByNumber` | Returns a block by number or block tag. | 5 | | `eth_getBlockReceipts` | Returns the transaction receipts for a specified block. | 5 | | `eth_getBlockTransactionCountByHash` | Returns the number of transactions in a block identified by hash. | 5 | | `eth_getBlockTransactionCountByNumber` | Returns the number of transactions in a block identified by number or tag. | 5 | | `eth_getCode` | Returns the code stored at an address at a specified block. | 5 | | `eth_getFilterChanges` | Returns changes since the last poll for a filter. | 5 | | `eth_getFilterLogs` | Returns all logs matching an existing filter. | 5 | | `eth_getLogs` | Returns logs matching a filter object. | 50 | | `eth_getProof` | Returns account and storage proofs for an address at a specified block. | 5 | | `eth_getRawTransactionByBlockHashAndIndex` | Returns a raw transaction by block hash and transaction index. | 5 | | `eth_getRawTransactionByBlockNumberAndIndex` | Returns a raw transaction by block number or tag and transaction index. | 5 | | `eth_getStorageAt` | Returns the value stored at a specified storage position for an address at a block. | 5 | | `eth_getTransactionByBlockHashAndIndex` | Returns a transaction by block hash and transaction index. | 5 | | `eth_getTransactionByBlockNumberAndIndex` | Returns a transaction by block number or tag and transaction index. | 5 | | `eth_getTransactionByHash` | Returns a transaction by its hash. | 5 | | `eth_getTransactionCount` | Returns the number of transactions sent from an address at a specified block. | 10 | | `eth_getTransactionReceipt` | Returns the receipt for a transaction hash. | 5 | | `eth_getUncleByBlockHashAndIndex` | Returns the uncle at an index in a block identified by hash. | 5 | | `eth_getUncleByBlockNumberAndIndex` | Returns the uncle at an index in a block identified by number or tag. | 5 | | `eth_getUncleCountByBlockHash` | Returns the uncle count for a block identified by hash. | 5 | | `eth_getUncleCountByBlockNumber` | Returns the uncle count for a block identified by number or tag. | 5 | | `eth_maxPriorityFeePerGas` | Returns a suggested priority fee per gas. | 1 | | `eth_newBlockFilter` | Creates a filter that reports newly added blocks. | 5 | | `eth_newFilter` | Creates a filter for logs matching supplied criteria. | 5 | | `eth_protocolVersion` | Returns the current Ethereum protocol version. | 1 | | `eth_sendRawTransaction` | Submits a signed, serialized transaction and returns its transaction hash. | 100 | | `eth_subscribe` | Creates a subscription for supported events over WebSocket. | 1 | | `eth_syncing` | Returns synchronization status or `false` when the node is not syncing. | 1 | | `eth_uninstallFilter` | Removes a filter and returns whether it was removed. | 5 | | `eth_unsubscribe` | Cancels an existing WebSocket subscription. | 1 | ### `debug` > 🚧 > > These methods require `tracer: callTracer` in the request parameters. | Method | Notes | Compute Unit Value | | -------------------------- | ---------------------------------------------------------------------------------------------- | ------------------ | | `debug_traceBlock` | Replays a block and returns execution traces for its transactions. | 50 | | `debug_traceBlockByHash` | Replays a block identified by hash and returns execution traces for its transactions. | 50 | | `debug_traceBlockByNumber` | Replays a block identified by number or tag and returns execution traces for its transactions. | 50 | | `debug_traceTransaction` | Replays a transaction identified by hash and returns the selected execution trace. | 50 | ### `net` | Method | Notes | Compute Unit Value | | --------------- | -------------------------------------------------- | ------------------ | | `net_version` | Returns the current network identifier. | 1 | | `net_peerCount` | Returns the number of peers connected to the node. | 1 | ### `web3` | Method | Notes | Compute Unit Value | | -------------------- | ------------------------------------------------- | ------------------ | | `web3_clientVersion` | Returns the current client version. | 1 | | `web3_sha3` | Returns the Keccak-256 hash of the supplied data. | 1 | ### `optimism` | Method | Notes | Compute Unit Value | | ------------------------ | -------------------------------------------------------------- | ------------------ | | `optimism_outputAtBlock` | Returns the rollup output information at a specified L2 block. | 10 | | `optimism_rollupConfig` | Returns the rollup node configuration. | 5 | | `optimism_syncStatus` | Returns the rollup node synchronization status. | 5 | | `optimism_version` | Returns the rollup node version string. | 1 |