# Read from MegaETH ## Realtime API Standard Ethereum JSON-RPC was designed for chains with multi-second block times. On those chains, a one-second delay between execution and queryability is normal — you poll `eth_getTransactionReceipt`, wait for the next block, and eventually get your result. MegaETH produces [mini-blocks](/mini-block.md) every \~10 milliseconds. If the read API still operated on one-second EVM blocks, applications would wait 100× longer than necessary to see their results. The Realtime API closes this gap: it queries against the most recent mini-block so that balances, receipts, logs, and state changes are visible within milliseconds of execution — not seconds. Standard methods like `eth_getBalance`, `eth_call`, and `eth_getTransactionReceipt` already reflect mini-block state automatically when called with `latest` or `pending`. On top of that, MegaETH introduces four extension methods for even lower-latency workflows: * [`realtime_sendRawTransaction`](/developer-docs/overview-2/rpc-reference/realtime_sendrawtransaction.md) — submit a transaction and get the receipt back in one call, no polling * [`eth_subscribe`](/developer-docs/overview-2/rpc-reference/eth_subscribe.md) — stream logs, state changes, mini-blocks, and block headers over WebSocket as they happen * [`eth_callAfter`](/developer-docs/overview-2/rpc-reference/eth_callafter.md) — simulate a transaction after a prior one confirms (nonce-gated) * [`eth_getLogsWithCursor`](/developer-docs/overview-2/rpc-reference/eth_getlogswithcursor.md) — paginated log queries for large result sets For use-case-oriented guidance (which method to use for what), see the [Realtime API](/developer-docs/overview-2/realtime-api.md) page. ## Available Methods {% hint style="info" %} The table below reflects the **public MegaETH RPC endpoint**. Methods marked "Managed only" are unavailable on the public endpoint but supported by managed RPC providers such as [Alchemy](https://www.alchemy.com/). See [Debugging Transactions](/developer-docs/overview-1/debugging.md) for usage of debug methods, and [Tooling](/developer-docs/tooling.md#rpc-providers) for provider options. {% endhint %} | Method | Availability | Additional Restrictions | | ----------------------------------------- | -------------- | ----------------------------------------------------------------- | | `debug_getRawBlock` | Managed only | | | `debug_getRawHeader` | Managed only | | | `debug_getRawReceipts` | Managed only | | | `debug_getRawTransaction` | Managed only | | | `debug_replayBlock` | Managed only | | | `debug_traceBlock` | Managed only | | | `debug_traceBlockByHash` | Available | | | `debug_traceBlockByNumber` | Available | | | `debug_traceCall` | Managed only | | | `debug_traceCallMany` | Managed only | | | `debug_traceTransaction` | Available | | | `eth_accounts` | Available | | | `eth_blockNumber` | Available | | | `eth_call` | Available | Compute gas limited to 60,000,000. | | `eth_callAfter` | Available | Compute gas limited to 60,000,000. Timeout limited to 60 seconds. | | `eth_callMany` | Available | Compute gas limited to 60,000,000 per call. | | `eth_chainId` | Available | | | `eth_createAccessList` | Available | Compute gas limited to 60,000,000. | | `eth_estimateGas` | Available | Compute gas limited to 60,000,000. | | `eth_feeHistory` | Available | Block range limited to 256. | | `eth_gasPrice` | Available | | | `eth_getBalance` | Available | | | `eth_getBlockByHash` | Available | | | `eth_getBlockByNumber` | Available | | | `eth_getBlockReceipts` | Available | | | `eth_getBlockTransactionCountByHash` | Available | | | `eth_getBlockTransactionCountByNumber` | Available | | | `eth_getCode` | Available | | | `eth_getFilterChanges` | Unavailable | | | `eth_getFilterLogs` | Unavailable | | | `eth_getLogs` | Available | | | `eth_getLogsWithCursor` | Managed only | | | `eth_getStorageAt` | Available | | | `eth_getTransactionByBlockHashAndIndex` | Available | | | `eth_getTransactionByBlockNumberAndIndex` | Available | | | `eth_getTransactionByHash` | Available | | | `eth_getTransactionCount` | Available | | | `eth_getTransactionReceipt` | Available | | | `eth_getUncleByBlockHashAndIndex` | Available | | | `eth_getUncleByBlockNumberAndIndex` | Available | | | `eth_getUncleCountByBlockHash` | Available | | | `eth_getUncleCountByBlockNumber` | Available | | | `eth_maxPriorityFeePerGas` | Available | | | `eth_mining` | Available | | | `eth_newBlockFilter` | Available | | | `eth_newFilter` | Available | | | `eth_newPendingTransactionFilter` | Available | | | `eth_protocolVersion` | Available | | | `eth_sendRawTransaction` | Available | | | `eth_sendTransaction` | Unavailable | Use `eth_sendRawTransaction` with a signed transaction. | | `eth_sign` | Unavailable | Sign client-side. | | `eth_signTransaction` | Unavailable | Sign client-side. | | `eth_signTypedData` | Unavailable | Sign client-side. | | `eth_subscribe` | WebSocket only | | | `eth_syncing` | Available | | | `eth_uninstallFilter` | Available | | | `eth_unsubscribe` | WebSocket only | | | `net_listening` | Available | | | `net_peerCount` | Available | | | `net_version` | Available | | | `realtime_sendRawTransaction` | Available | | | `trace_block` | Managed only | | | `trace_call` | Managed only | | | `trace_callMany` | Managed only | | | `trace_get` | Managed only | | | `trace_rawTransaction` | Managed only | | | `trace_replayBlockTransactions` | Managed only | | | `trace_replayTransaction` | Managed only | | | `trace_transaction` | Managed only | | | `txpool_content` | Unavailable | | | `txpool_contentFrom` | Unavailable | | | `txpool_inspect` | Unavailable | | | `txpool_status` | Unavailable | | | `web3_clientVersion` | Available | | ## Rate Limiting All available methods are subject to rate limiting based on two criteria: * **Compute Unit (CU) Limiting** — limits the computational cost of requests based on their complexity. * **Network Bandwidth Limiting** — limits the network traffic based on response sizes. User limits are dynamically updated in response to individual behavior. ## Related Pages * [Realtime API](/developer-docs/overview-2/realtime-api.md) — use-case guide for streaming data and instant receipts * [Error Codes](/developer-docs/overview-2/rpc-reference/error-codes.md) — HTTP and RPC error codes with mitigations --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.megaeth.com/developer-docs/overview-2.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.