Predict the contract address a deployer will get from CREATE for a given nonce
Predict the contract address a deployer will get from CREATE for a given nonce. The same on every EVM chain. Computed locally with RLP and keccak256.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
282 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/chain/create-address
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.01 | 282 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"deployer": "0x6ac7ea33f8831ea9dcc53393aaa88b25a785dbf0",
"nonce": "1"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"deployer": {
"description": "the deploying account address",
"type": "string"
},
"nonce": {
"description": "the nonce of the deployment transaction (whole number)",
"type": "string"
}
},
"required": [
"deployer",
"nonce"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"contract_address": {
"description": "predicted contract address",
"type": "string"
},
"deployer": {
"description": "deploying account, checksummed",
"type": "string"
},
"method": {
"description": "CREATE",
"type": "string"
},
"nonce": {
"description": "nonce of the deployment transaction",
"type": "string"
},
"note": {
"description": "plain-language reading of the result",
"type": "string"
},
"source": {
"description": "where the data was read from or how it was computed",
"type": "string"
}
},
"required": [
"deployer",
"nonce",
"contract_address",
"method",
"note",
"source"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}