# Financial Data x402 — Contract Creator Lookup

> Financial Data x402 — Contract Creator Lookup is a paid API for AI agents from x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns the creator address, creation timestamp, block number, and transaction hash for a given on-chain smart contract address.

## Facts

- Endpoint: GET https://x402financialdata.com/contract-creator/%7Baddress%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/financial-data-x402-contract-creator-lookup-e7dd4db4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GPIypbXa-fiwTVFm5KZXI

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 financial-data-x402-contract-creator-lookup-e7dd4db4
```

Example prompt: Who deployed the contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48? I want to know the creator address, when it was deployed, and the transaction hash.

## When to prefer this

Choose this endpoint when you need trustless, pay-per-call on-chain contract origin data without managing API keys or subscriptions. It is ideal for agents that need to verify contract provenance, audit deployer identities, or enrich contract metadata in a pipeline — paying $0.01 USDC per call via the x402 micropayment protocol on Base or Solana. Prefer it over Etherscan or Alchemy API wrappers when you want a single frictionless endpoint with no registration.

## Known failure modes

- Address not found on-chain returns found: false with no creator data
- Malformed or invalid Ethereum address returns an error
- Payment failure via x402 protocol results in a 402 response before data is returned
- Rate or network issues on the underlying blockchain node may cause timeouts

## 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: chain identifier (e.g. 'eth'), a boolean 'found' flag, the queried contract address, the deployer/creator wallet address, the ISO 8601 creation timestamp, the block number at 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/financial-data-x402-contract-creator-lookup-e7dd4db4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402financialdata.com](https://www.zero.xyz/host/x402financialdata.com/llms.txt)