eth_getTransactionByHash

eth_getTransactionByHash JSON-RPC reference for MegaETH.

Summary

Returns a transaction by its hash.

The public MegaETH endpoint supports this method. The standard, node, and gateway layers below identify behavior that differs from a generic Ethereum endpoint.

Parameters

transactionHash Hash32 REQUIRED

Target transaction hash.

Result

Transaction | null — null when the transaction cannot be found.

• hash Hash32

  Transaction hash.
• type Quantity

  Transaction type identifier.
• from Address

  Sender.
• to Address | null

  Recipient; null for contract creation.
• value Quantity

  Transfer value in wei.
• nonce Quantity

  Sender nonce.
• gas Quantity

  Gas limit.
• input Data

  Calldata.
• blockHash Hash32 | null

  null for pending transactions.
• blockNumber Quantity | null

  null for pending transactions.
• transactionIndex Quantity | null

  null for pending transactions.

Additional fields vary by transaction type (gasPrice, maxFeePerGas, accessList, chainId, v, r, s, etc.).

Comparison with Ethereum Standard JSON-RPC

Ethereum Standard

The canonical Ethereum method uses the parameter and result contract documented above, including the stated null, false, or zero-value semantics where applicable.

MegaETH Node Behavior

The node returns a transaction known to canonical storage or the live transaction view; an unknown hash produces null.

MegaETH Public Gateway

The gateway caches included transactions for 30 minutes. A null result is not cached, so a later request can observe a transaction that has since become available.

Errors

The | Scope | column distinguishes method failures from gateway policy errors.

Code	Scope	Message	When it happens
-32602	Request	Invalid params	Transaction hash is missing or malformed
-32005	Transport/policy	Rate limit exceeded	The caller exceeds the public gateway's simple read budget.
-32099	Transport/policy	Payload too large	The request body exceeds the 128 KiB public endpoint limit.

See also Error Codes.

Examples

Endpoint: https://mainnet.megaeth.com/rpc

Capture date: July 24, 2026

Outcome: success

{
  "jsonrpc": "2.0",
  "id": 79,
  "method": "eth_getTransactionByHash",
  "params": [
    "0x89f0ccba20d5bbbe1cb6b44fb8d1f9a9e14b620a0b947a3de81cff684462f60c"
  ]
}

{
  "jsonrpc": "2.0",
  "id": 79,
  "result": {
    "type": "0x0",
    "hash": "0x89f0ccba20d5bbbe1cb6b44fb8d1f9a9e14b620a0b947a3de81cff684462f60c",
    "from": "0xa887dcb9d5f39ef79272801d05abdf707cfbbd1d",
    "to": "0x6342000000000000000000000000000000000001",
    "nonce": "0x597ac57",
    "gas": "0x3d5720",
    "value": "0x0",
    "blockHash": "0xf773491fd24617452b30c3ed626bf440b5846b9c818ec7d8d7f71c9a02993c8b",
    "blockNumber": "0xb120c6",
    "transactionIndex": "0x1"
  }
}

Sources

• Spec: [email protected]:ethereum/execution-apis.git @ d24f58b56dcd16ab0f0c70ec609bcc1c42750b51: src/eth/transaction.yaml
• Code: [email protected]:megaeth-labs/mega-reth.git @ ab60376631228edab3a6df180f295280bad26e93: crates/rpc/rpc-eth-api/src/core.rs
• Code: [email protected]:megaeth-labs/mega-rpc.git @ 06aa35aa95d569c227cc25d2aa12834eb0458aa0: workers/src/processors/get-tx-by-hash-processor.ts
• Probe: MegaETH Mainnet public endpoint, July 24, 2026