eth_sendRawTransaction

eth_sendRawTransaction JSON-RPC reference for MegaETH.

Summary

Submits a signed transaction to the network and returns its transaction 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

rawTx Data REQUIRED

Signed, RLP-encoded transaction bytes. Supported envelope types are legacy, EIP-2930, EIP-1559, EIP-4844, and EIP-7702.

Result

result Data

32-byte transaction hash.

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 decodes and validates the signed transaction before admitting it to the transaction pool. Successful submission returns the transaction hash, not an inclusion receipt.

MegaETH Public Gateway

The gateway validates chain ID, signature, intrinsic gas, fee floor, nonce, balance, and policy checks before forwarding. The method is exempt from read-rate limits and accepts request bodies up to 2.5 MiB.

Errors

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

Code	Scope	Message	When it happens
-32602	Request	Invalid params	Parameter missing, hex malformed, or bytes cannot be decoded as a signed transaction
-32000	Method	Server error	Pool or gateway rule violation
-32003	Method	Transaction rejected	Insufficient sender funds, pool at capacity, or unsupported transaction type
-32099	Transport/policy	Payload too large	The request body exceeds the 2.5 MiB 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": 1,
  "method": "eth_sendRawTransaction",
  "params": [
    "0xf86c808405763d658261a894aa000000000000000000000000000000000000000a8255448718e5bb3abd109fa0c8e3b4a0087357bd49d80a0ac24daf0c91191e71086c1e355fc62cfab2218873a074f4636f740fa4d1697b6e736e5982b700be2c8b63031a24fa531ae4814b3af8"
  ]
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x66734e85ef096167acb887cf445946a1ed57b90b66ffe38af87e11294febbfa9"
}

Sources

• Spec: [email protected]:ethereum/execution-apis.git @ d24f58b56dcd16ab0f0c70ec609bcc1c42750b51: src/eth/submit.yaml
• Code: [email protected]:megaeth-labs/mega-reth.git @ ab60376631228edab3a6df180f295280bad26e93: crates/megaeth/rpc/src/eth/api.rs
• Code: [email protected]:megaeth-labs/mega-rpc.git @ 06aa35aa95d569c227cc25d2aa12834eb0458aa0: workers/src/sequencer-guard/single-tx.ts
• Probe: MegaETH Mainnet public endpoint, July 24, 2026