wallet_prepareCalls | Alchemy Docs

This method is used to prepare a user operation for submission. It will return a built user operation and a signature request which needs to be signed by the user before submitting to wallet_sendPreparedCalls

Path parameters

apiKeystringRequired

Request

This endpoint expects an object.

prepareCallsRequestobjectRequired

Response

This endpoint returns an object.

typeenum

dataobject

chainIdstringformat: "^0x(.*)$"

signatureRequestobject

1	curl -X POST https://api.g.alchemy.com/docs-demo \
2	-H "Content-Type: application/json" \
3	-d '{
4	"jsonrpc": "2.0",
5	"method": "wallet_prepareCalls",
6	"params": [],
7	"id": 1
8	}'

1	{
2	"id": 1,
3	"jsonrpc": "2.0",
4	"result": {
5	"type": "user-operation-v060",
6	"data": {
7	"sender": "foo",
8	"nonce": "foo",
9	"initCode": "foo",
10	"callData": "foo",
11	"callGasLimit": "foo",
12	"verificationGasLimit": "foo",
13	"preVerificationGas": "foo",
14	"maxFeePerGas": "foo",
15	"maxPriorityFeePerGas": "foo",
16	"paymasterAndData": "foo"
17	},
18	"chainId": "foo",
19	"signatureRequest": {
20	"type": "personal_sign",
21	"data": "foo"
22	}
23	}
24	}