> ## 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.

# World Chain methods

> Complete reference of World Chain JSON-RPC methods supported on Chainstack, with per-method availability for the eth, debug, trace, net, and web3 namespaces. Live-tested against Chainstack World Chain nodes.

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).

World Chain is an [OP Stack](https://docs.optimism.io/) layer 2 built by [World](https://world.org/). Chain ID is `480`. Chainstack nodes run the `world-chain` execution client, a fork of [Reth](https://github.com/paradigmxyz/reth), and report `world-chain/v2.4.0` from `web3_clientVersion`. The availability below is verified against Chainstack World Chain nodes.

## Both debug and trace are available

World Chain exposes the `debug_*` and the `trace_*` namespaces in full. Every trace method works, including `trace_block`, `trace_transaction`, `trace_filter`, `trace_callMany`, and `trace_replayBlockTransactions`. Both namespaces need a [paid plan](https://chainstack.com/pricing/) — see [Debug and trace APIs](/docs/debug-and-trace-apis#world-chain).

For tracer selection, the native tracers `callTracer`, `prestateTracer`, `4byteTracer`, and `noopTracer` are enabled. `flatCallTracer` and `muxTracer` are not — see [Available native tracers](/docs/limits#available-native-tracers).

<Note>
  `rpc_modules` is not available on World Chain — it returns `-32601 Method not found`. Do not use it to work out which namespaces you have; use the table below.
</Note>

## The transaction pool is not served

The `txpool_*` namespace is not available on World Chain. `txpool_status`, `txpool_content`, `txpool_contentFrom`, and `txpool_inspect` all return `-32601`. There is no archive-mode or plan upgrade that turns them on, because World Chain is an OP Stack chain and pending transactions stay with the sequencer.

## Pending transactions are accepted but never delivered

`eth_newPendingTransactionFilter` returns a filter ID and `eth_subscribe("newPendingTransactions")` returns a subscription ID, so both look like they worked. Neither ever delivers a transaction — the subscription produced zero events over a 16-second window against a chain that was confirming transactions throughout.

`eth_getBlockByNumber("pending")` does return a block, unlike on [Arc](/docs/arc-methods), so that call is safe to make. See [What gives you mempool access](/docs/mempool-configuration#what-gives-you-mempool-access) for how World Chain compares with the other EVM chains.

## Filters on a load-balanced endpoint

A [Global Node](/docs/global-elastic-node) endpoint is load balanced across backends, and a filter created by `eth_newFilter` or `eth_newBlockFilter` lives on the single backend that created it. A follow-up `eth_getFilterChanges` that lands on a different backend returns `-32602 filter not found`. Poll with [eth\_getLogs](/reference/ethereum-getlogs) over an explicit block range instead, or use a WSS subscription, which holds one connection to one backend for its lifetime.

## Block time and archive billing

World Chain produces a block roughly every 2 seconds. The standard EVM rule — 127 or more blocks behind the tip bills as archive — therefore covers about 4 minutes of history, against roughly 25 minutes on Ethereum. Plan for historical queries to bill as archive sooner than they would on Ethereum.

## Legacy debug methods

The `world-chain` client inherits Reth's behavior of registering a number of Geth-era `debug_*` methods and then returning `null` for them rather than an error. They are marked unavailable below, because a `null` response carries no data. Use `debug_traceTransaction`, `debug_traceBlockByNumber`, `debug_traceBlockByHash`, and `debug_traceCall` instead, or `eth_getStorageAt` in place of `debug_storageRangeAt` — see [Using eth\_getStorageAt instead of debug\_storageRangeAt on Reth](/docs/using-eth_getstorageat-instead-of-debug_storagerangeat-on-reth).

## Method availability

| Method                                   | Availability                                  | Comment                                                                                                                                 |
| ---------------------------------------- | --------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- |
| debug\_accountRange                      | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth                                                                                                   |
| debug\_chaindbProperty                   | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth                                                                                                   |
| debug\_codeByHash                        | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth                                                                                                   |
| debug\_dumpBlock                         | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth                                                                                                   |
| debug\_getAccessibleState                | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth                                                                                                   |
| debug\_getBadBlocks                      | <Icon icon="square-check" iconType="solid" /> | returns an empty array                                                                                                                  |
| debug\_getModifiedAccountsByHash         | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth                                                                                                   |
| debug\_getModifiedAccountsByNumber       | <Icon icon="xmark" iconType="solid" />        | returns `-32602 Invalid params` for every argument form                                                                                 |
| debug\_getRawBlock                       | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| debug\_getRawHeader                      | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| debug\_getRawReceipts                    | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| debug\_getRawTransaction                 | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| debug\_getTrieFlushInterval              | <Icon icon="xmark" iconType="solid" />        | not implemented by Reth                                                                                                                 |
| debug\_intermediateRoots                 | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| debug\_preimage                          | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth                                                                                                   |
| debug\_printBlock                        | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth                                                                                                   |
| debug\_storageRangeAt                    | <Icon icon="xmark" iconType="solid" />        | registered but returns `null` on Reth — use `eth_getStorageAt`                                                                          |
| debug\_traceBadBlock                     | <Icon icon="square-check" iconType="solid" /> | returns `-32603 bad block not found in cache` when the chain has no bad blocks                                                          |
| debug\_traceBlock                        | <Icon icon="square-check" iconType="solid" /> | takes an RLP-encoded block                                                                                                              |
| debug\_traceBlockByHash                  | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| debug\_traceBlockByNumber                | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| debug\_traceCall                         | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| debug\_traceTransaction                  | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_accounts                            | <Icon icon="square-check" iconType="solid" /> | returns an empty array — no unlocked accounts on a hosted node                                                                          |
| eth\_blobBaseFee                         | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_blockNumber                         | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_call                                | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_chainId                             | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_coinbase                            | <Icon icon="xmark" iconType="solid" />        | not implemented by Reth — returns `-32603 unimplemented`                                                                                |
| eth\_createAccessList                    | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_estimateGas                         | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_feeHistory                          | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_gasPrice                            | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getAccount                          | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getBalance                          | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getBlockByHash                      | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getBlockByNumber                    | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getBlockReceipts                    | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getBlockTransactionCountByHash      | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getBlockTransactionCountByNumber    | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getCode                             | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getFilterChanges                    | <Icon icon="square-check" iconType="solid" /> | filters are node-local — see [Filters on a load-balanced endpoint](#filters-on-a-load-balanced-endpoint)                                |
| eth\_getFilterLogs                       | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getHeaderByHash                     | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getHeaderByNumber                   | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getLogs                             | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getProof                            | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getRawTransactionByHash             | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getStorageAt                        | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getTransactionByBlockHashAndIndex   | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getTransactionByBlockNumberAndIndex | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getTransactionByHash                | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getTransactionBySenderAndNonce      | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getTransactionCount                 | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getTransactionReceipt               | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getUncleByBlockHashAndIndex         | <Icon icon="square-check" iconType="solid" /> | always null — World Chain has no uncles                                                                                                 |
| eth\_getUncleByBlockNumberAndIndex       | <Icon icon="square-check" iconType="solid" /> | always null — World Chain has no uncles                                                                                                 |
| eth\_getUncleCountByBlockHash            | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_getUncleCountByBlockNumber          | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_hashrate                            | <Icon icon="square-check" iconType="solid" /> | always `0x0`                                                                                                                            |
| eth\_maxPriorityFeePerGas                | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_mining                              | <Icon icon="xmark" iconType="solid" />        | not implemented by Reth — returns `-32603 unimplemented`                                                                                |
| eth\_newBlockFilter                      | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_newFilter                           | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_newPendingTransactionFilter         | <Icon icon="square-check" iconType="solid" /> | accepts the filter but never returns a transaction — see [Pending transactions](#pending-transactions-are-accepted-but-never-delivered) |
| eth\_protocolVersion                     | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_sendRawTransaction                  | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_sendRawTransactionSync              | <Icon icon="square-check" iconType="solid" /> | waits for the receipt instead of returning the hash                                                                                     |
| eth\_simulateV1                          | <Icon icon="xmark" iconType="solid" />        | returns `-32603 Internal error` for every request shape tested                                                                          |
| eth\_subscribe                           | <Icon icon="square-check" iconType="solid" /> | WSS. `newHeads`, `logs`, and `syncing` deliver. `newPendingTransactions` subscribes but delivers nothing                                |
| eth\_syncing                             | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_uninstallFilter                     | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| eth\_unsubscribe                         | <Icon icon="square-check" iconType="solid" /> | WSS                                                                                                                                     |
| net\_listening                           | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| net\_peerCount                           | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| net\_version                             | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| rpc\_modules                             | <Icon icon="xmark" iconType="solid" />        | returns `-32601 Method not found`                                                                                                       |
| trace\_block                             | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| trace\_call                              | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| trace\_callMany                          | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| trace\_filter                            | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| trace\_get                               | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| trace\_rawTransaction                    | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| trace\_replayBlockTransactions           | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| trace\_replayTransaction                 | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| trace\_transaction                       | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| txpool\_content                          | <Icon icon="xmark" iconType="solid" />        | the `txpool_*` namespace is not served on World Chain                                                                                   |
| txpool\_contentFrom                      | <Icon icon="xmark" iconType="solid" />        | the `txpool_*` namespace is not served on World Chain                                                                                   |
| txpool\_inspect                          | <Icon icon="xmark" iconType="solid" />        | the `txpool_*` namespace is not served on World Chain                                                                                   |
| txpool\_status                           | <Icon icon="xmark" iconType="solid" />        | the `txpool_*` namespace is not served on World Chain                                                                                   |
| web3\_clientVersion                      | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |
| web3\_sha3                               | <Icon icon="square-check" iconType="solid" /> |                                                                                                                                         |