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Web3 Tools - Contract Address Predictor (CREATE / CREATE2)
x402
Web3 Tools - Contract Address Predictor (CREATE / CREATE2) is a paid API for AI agents from web3-tools.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).
Predicts the Ethereum contract address that will be deployed using either CREATE (deployer + nonce) or CREATE2 (deployer + salt + init code or its hash).
Price / call$0.02
Success—
StatusUnknown
How this service works
Predict a contract address: CREATE from deployer and nonce, or CREATE2 from deployer, salt and init code (or its hash).
Output
Returns the predicted contract address along with the deployment mode (CREATE or CREATE2), the deployer address, the nonce (if CREATE), and a summary explaining how the address was derived.
Example use cases
Pre-compute CREATE2 deployment address
“Can you predict the contract address for a CREATE2 deployment from deployer 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045, salt 0x0000000000000000000000000000000000000000000000000000000000000042, and init code hash 0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef?”
Find next contract address from nonce
“What address will be created when deployer 0xAbcD1234AbcD1234AbcD1234AbcD1234AbcD1234 deploys their next contract using CREATE with nonce 7?”
Verify expected deployment address
“I'm about to deploy a contract from 0x1111111111111111111111111111111111111111 using CREATE2 — the salt is 0x0000000000000000000000000000000000000000000000000000000000000099 and the full init code starts with 0x6080604052... Can you compute the expected address so I can confirm it matches what my deployment script says?”
Technical details
Endpoint
GEThttps://web3-tools.x402tookit.com/contract-address?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to deterministically calculate a smart contract's deployment address before it is deployed on-chain, either via the standard CREATE opcode (using deployer + nonce) or via the CREATE2 opcode (using deployer + salt + init code or its keccak256 hash). Prefer this over manual RLP/hash calculations to avoid errors.
Side effects
- Missing deployer address returns validation error
- Invalid deployer address format (not 0x + 40 hex) returns error
- CREATE2 called without salt or without initCode/initCodeHash returns error
- Nonce must be a whole number string; non-integer values fail
- initCodeHash must be a valid 32-byte hex string
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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