eth_sign7702Authorization

Signs an EIP-7702 authorization struct using the wallet’s private key.

POST /v1/wallets/{wallet_id}/rpc

cURL

curl --request POST \
  --url https://api.privy.io/v1/wallets/{wallet_id}/rpc \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --header 'privy-app-id: <privy-app-id>' \
  --data '{
    "method": "eth_sign7702Authorization",
    "params": {
      "contract": "0x1234567890abcdef1234567890abcdef12345678",
      "chain_id": 1,
      "nonce": 0
    }
}'

200

{
  "method": "eth_sign7702Authorization",
  "data": {
    "authorization": {
      "contract": "0x1234567890abcdef1234567890abcdef12345678",
      "chain_id": 1,
      "nonce": 0,
      "r": "0x0db9c7bd881045cbba28c347de6cc32a653e15d7f6f2f1cec21d645f402a6419",
      "s": "0x6e877eb45d3041f8d2ab1a76f57f408b63894cfc6f339d8f584bd26efceae308",
      "y_parity": 1
    }
  }
}

SDK methods

Learn more about signing EIP-7702 authorizations using our SDKs here.

---

Idempotency on errors: On 4xx or 5xx, Privy caches the response and replays it for the same key. Generate a new key to retry after a server error. Policy violations are an exception and allow same-key retries.

cURL

curl --request POST \
  --url https://api.privy.io/v1/wallets/{wallet_id}/rpc \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --header 'privy-app-id: <privy-app-id>' \
  --data '{
    "method": "eth_sign7702Authorization",
    "params": {
      "contract": "0x1234567890abcdef1234567890abcdef12345678",
      "chain_id": 1,
      "nonce": 0
    }
}'

200

{
  "method": "eth_sign7702Authorization",
  "data": {
    "authorization": {
      "contract": "0x1234567890abcdef1234567890abcdef12345678",
      "chain_id": 1,
      "nonce": 0,
      "r": "0x0db9c7bd881045cbba28c347de6cc32a653e15d7f6f2f1cec21d645f402a6419",
      "s": "0x6e877eb45d3041f8d2ab1a76f57f408b63894cfc6f339d8f584bd26efceae308",
      "y_parity": 1
    }
  }
}

Headers

privy-app-id · string · required

ID of your Privy app.

privy-authorization-signature · string

Request authorization signature. If multiple signatures are required, they should be comma separated.

privy-request-expiry · string

Request expiry. Value is a Unix timestamp in milliseconds representing the deadline by which the request must be processed.

Path Parameters

wallet_id · string · required

ID of the wallet to get.

Body

method · string · required

The RPC method to execute. Must be eth_sign7702Authorization.

params · object · required

The parameters for signing the EIP-7702 authorization.

Hide child properties

contract · string · required

The address of the smart contract that the EOA will delegate to. Must be a valid Ethereum address in hex format.

chain_id · number · required

The chain ID where this authorization will be valid.

nonce · number

The nonce for the authorization. If not provided, we will fetch the current nonce for the wallet.

Response

method · string · required

The RPC method that was executed. Will be eth_sign7702Authorization.

data · object · required

The response data containing the signed authorization.

Hide child properties

authorization · object · required

The signed EIP-7702 authorization object.

Show authorization properties

contract · string · required

The address of the smart contract that the EOA delegates to.

chain_id · number · required

The chain ID where this authorization is valid.

nonce · number · required

The nonce for the authorization.

r · string · required

The r component of the ECDSA signature.

s · string · required

The s component of the ECDSA signature.

y_parity · number · required

The recovery parameter (0 or 1) for the signature.