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eth_getCode

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`eth_getCode` returns the compiled EVM bytecode deployed at an address, as a `0x`-prefixed hex string, as of a specific block. This is the code that actually runs when the contract is called — not the source, the ABI, or the constructor ("init") code, but the runtime bytecode persisted on chain.

Use it to tell a contract apart from an externally-owned account (EOA), to fetch the on-chain bytecode for verification or disassembly, or to confirm that a deployment landed at the expected address before you start calling it.

The key behaviour to plan for: **an empty result is `0x`.** A plain wallet (EOA), an address that has never been deployed to, and a contract that hasn't been deployed *yet at the queried block* all return `0x`. Code presence is therefore the reliable "is this a contract?" check — `result !== "0x"` means bytecode exists at that address at that block.

Parameters

This method takes no parameters.

Returns

eth_getCode return value
FieldType
resultobject

Examples

curl https://<your-endpoint>/ \
  -X POST -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_getCode","params":[]}'
const res = await fetch("https://<your-endpoint>/", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "id": 1,
  "method": "eth_getCode",
  "params": [],
  "jsonrpc": "2.0"
}),
});
const data = await res.json();
import requests
resp = requests.post("https://<your-endpoint>/", json={"id":1,"method":"eth_getCode","params":[],"jsonrpc":"2.0"})
print(resp.json())

Usage

  1. Transport: HTTP (JSON-RPC).
  2. Networks: mainnet.
  3. Credit cost: 1 per call.

FAQ

What does eth_getCode do?
Returns the deployed bytecode stored at an address at a given block.
How many credits does eth_getCode cost?
eth_getCode costs 1 credit(s) per call on Triport by default.
Is eth_getCode available over WebSocket?
eth_getCode is an HTTP JSON-RPC method.