> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Base methods
> Complete reference of supported Base JSON-RPC methods on Chainstack nodes, including eth, debug, and trace namespace availability details.
Our pricing is simple: 1 RU per full request, 2 RUs per archive. For which EVM methods are full vs archive, see [Request units — EVM methods affected by block age](/docs/request-units#evm-methods-affected-by-block-age).
See also [interactive Base API call examples](/reference/base-api-reference).
| Method | Availability | Comment |
| - | - | - |
| eth\_accounts | | Deprecated |
| eth\_blockNumber | | |
| eth\_call | | |
| eth\_callMany | | |
| eth\_chainId | | |
| eth\_estimateGas | | |
| eth\_feeHistory | | |
| eth\_gasPrice | | |
| eth\_simulateV1 | | |
| eth\_getAccount | | |
| eth\_getBalance | | |
| eth\_getBlockByHash | | |
| eth\_getBlockByNumber | | |
| eth\_getBlockReceipts | | |
| eth\_getBlockTransactionCountByHash | | |
| eth\_getBlockTransactionCountByNumber | | |
| eth\_getCode | | |
| eth\_getFilterChanges | | |
| eth\_getFilterLogs | | |
| eth\_getLogs | | |
| eth\_getProof | | |
| eth\_getStorageAt | | |
| eth\_getTransactionByBlockHashAndIndex | | |
| eth\_getTransactionByBlockNumberAndIndex | | |
| eth\_getTransactionByHash | | |
| eth\_getTransactionCount | | |
| eth\_getTransactionReceipt | | |
| eth\_getUncleCountByBlockHash | | |
| eth\_getUncleCountByBlockNumber | | |
| eth\_maxPriorityFeePerGas | | |
| eth\_newBlockFilter | | |
| eth\_newFilter | | |
| eth\_newPendingTransactionFilter | | Returns empty — mempool is private to the sequencer |
| eth\_signTransaction | | |
| eth\_subscribe | | |
| eth\_subscribe newFlashblockTransactions | | Flashblocks WS only |
| eth\_subscribe pendingLogs | | Flashblocks WS only |
| eth\_subscribe newFlashblocks | | Flashblocks WS only |
| eth\_syncing | | |
| eth\_uninstallFilter | | |
| eth\_unsubscribe | | |
| eth\_sendRawTransaction | | |
| net\_listening | | |
| net\_peerCount | | |
| net\_version | | |
| web3\_clientVersion | | |
| web3\_sha3 | | |
| erigon\_blockNumber | | |
| erigon\_forks | | |
| erigon\_getBlockByTimestamp | | |
| erigon\_getBlockReceiptsByBlockHash | | |
| erigon\_getHeaderByHash | | |
| erigon\_getHeaderByNumber | | |
| erigon\_getLatestLogs | | |
| erigon\_getLogsByHash | | |
| debug\_getBadBlocks | | |
| debug\_storageRangeAt | | Not available on Reth |
| debug\_getTrieFlushInterval | | |
| debug\_traceBlock | | |
| debug\_traceBlockByHash | | |
| debug\_traceBlockByNumber | | |
| debug\_traceCall | | |
| debug\_traceTransaction | | |
| trace\_block | | |
| trace\_call | | |
| trace\_callMany | | |
| trace\_filter | | |
| trace\_rawTransaction | | |
| trace\_replayBlockTransactions | | |
| trace\_replayTransaction | | |
| trace\_transaction | | |
| optimism\_outputAtBlock | | |
| optimism\_syncStatus | | |
| optimism\_rollupConfig | | |
| optimism\_version | | |
| admin\_addPeer | | |
| admin\_addTrustedPeer | | |
| admin\_datadir | | |
| admin\_exportChain | | |
| admin\_importChain | | |
| admin\_nodeInfo | | |
| admin\_peerEvents | | |
| admin\_peers | | |
| admin\_removePeer | | |
| admin\_removeTrustedPeer | | |
| admin\_startHTTP | | |
| admin\_startWS | | |
| admin\_stopHTTP | | |
| admin\_stopWS | | |