# Contract Creator Lookup

> Contract Creator Lookup is a paid API for AI agents from x402-stock-indicators.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-12).

Returns the deployer address, deployment block, timestamp, and transaction hash for a given smart contract address on Ethereum

## Facts

- Endpoint: GET https://x402-stock-indicators.vercel.app/contract-creator/%7Baddress%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/contract-creator-lookup-e6e141ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TXoBCLdgcZ3N3Sq-XIx9Y

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability contract-creator-lookup-e6e141ad
```

Example prompt: Who originally deployed the contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum — I need the creator address, when it was deployed, and the transaction hash.

## When to prefer this

Choose this endpoint when you need on-chain provenance data for a specific smart contract — specifically the deployer identity, deployment block, and transaction hash — without signing up for an API key or subscription. It is ideal for agents performing due diligence on DeFi protocols, token contracts, or NFT collections, and for workflows that pay per query using USDC on Base or Solana via the x402 protocol.

## Known failure modes

- Contract address not found on chain — returns found: false
- Invalid or malformed address format — may return error or empty result
- Contract deployed on unsupported chain — data may be unavailable
- Network or upstream data provider timeout
- Payment failure via x402 protocol — call not executed if USDC payment is rejected

## How this service works

Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.

## Output

A JSON object containing: the chain identifier (e.g. 'eth'), a boolean indicating whether the contract was found, the queried contract address, the creator/deployer wallet address, the ISO 8601 timestamp of deployment, the block number of deployment, and the creation transaction hash.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": "eth",
  "found": true,
  "address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
  "creator": "0x95ba4cf87d6723ad9c0db21737d862be80e93911",
  "timestamp": "2018-08-03T20:48:24+00:00",
  "block_number": 6082465,
  "creation_tx_hash": "0xe7e0fe390354509cd08c9a0168536938600ddc552b3f7cb96030ebef62e75895"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/contract-creator-lookup-e6e141ad/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-stock-indicators.vercel.app](https://www.zero.xyz/host/x402-stock-indicators.vercel.app/llms.txt)