# 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](https://docs.megaeth.com/mini-block) 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`](https://docs.megaeth.com/developer-docs/overview-2/rpc-reference/realtime_sendrawtransaction) — submit a transaction and get the receipt back in one call, no polling * [`eth_subscribe`](https://docs.megaeth.com/developer-docs/overview-2/rpc-reference/eth_subscribe) — stream logs, state changes, mini-blocks, and block headers over WebSocket as they happen * [`eth_callAfter`](https://docs.megaeth.com/developer-docs/overview-2/rpc-reference/eth_callafter) — simulate a transaction after a prior one confirms (nonce-gated) * [`eth_getLogsWithCursor`](https://docs.megaeth.com/developer-docs/overview-2/rpc-reference/eth_getlogswithcursor) — paginated log queries for large result sets For use-case-oriented guidance (which method to use for what), see the [Realtime API](https://docs.megaeth.com/developer-docs/overview-2/realtime-api) 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](https://docs.megaeth.com/developer-docs/overview-1/debugging) for usage of debug methods, and [Tooling](https://docs.megaeth.com/tooling#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](https://docs.megaeth.com/developer-docs/overview-2/realtime-api) — use-case guide for streaming data and instant receipts * [Error Codes](https://docs.megaeth.com/developer-docs/overview-2/rpc-reference/error-codes) — HTTP and RPC error codes with mitigations