State

RPC methods for setting code, nonce, storage, and balance on any account.

Each method writes directly to your Stagenet’s chain state, as if the value had been changed in a transaction. Once written, the value behaves like any piece of chain state: subsequent transactions can modify it, and reads return the latest write.

`dev_setCode`

Write bytecode at an address.

Parameter	Type	Description
`address`	`string`	A 0x-prefixed Ethereum address
`bytecode`	`string`	0x-prefixed hex

Returns { address }.


curl -X POST <YOUR_STAGENET_RPC_URL> \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "dev_setCode",
    "params": ["0x0000000000000000000000000000000000001234", "0x6042"]
  }'

`dev_setNonce`

Set the nonce on an account. Subsequent transaction-driven increments proceed from this value.

Parameter	Type	Description
`address`	`string`	A 0x-prefixed Ethereum address
`nonce`	`string`	Non-negative integer (decimal or `0x`-hex)

Returns { address, nonce } where nonce is the post-update value as a decimal string.

`dev_setStorageAt`

Write a 32-byte value into a specific storage slot.

The slot key accepts decimal slot numbers and short 0x hex (left-padded — slot keys are uint256, so this is unambiguous). The value must be an exactly 32-byte hex word (0x + 64 hex chars): uint-style vs bytes-style padding is ambiguous for values, so encode explicitly.

Parameter	Type	Description
`address`	`string`	A 0x-prefixed Ethereum address
`slot`	`string \| number`	Storage slot key — 0x hex (≤32 bytes) or a decimal slot number (`"10"` / `10` is slot ten, not `0x10`)
`value`	`string`	Value to write — exactly 32 bytes

Returns { address, slot } (the canonical 32-byte slot key is echoed back).


curl -X POST <YOUR_STAGENET_RPC_URL> \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "dev_setStorageAt",
    "params": [
      "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
      "0",
      "0x000000000000000000000000000000000000000000000000000000000000002a"
    ]
  }'

`dev_setBalance`

Overwrite an account’s native token balance. Amount is in wei.

Parameter	Type	Description
`address`	`string`	A 0x-prefixed Ethereum address
`amount`	`string`	Amount in wei (decimal or `0x`-hex)

Returns { address, balance } where balance is the post-update value in wei as a string.


curl -X POST <YOUR_STAGENET_RPC_URL> \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "dev_setBalance",
    "params": ["0x1111111111111111111111111111111111111111", "1000000000000000000"]
  }'