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TraceFast Contract Metadata
x402
TraceFast Contract Metadata is a paid API for AI agents from mpp.tracefast.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Returns comprehensive metadata for a deployed Ethereum contract: bytecode hash/size, ABI interface detection (ERC-20, ERC-165), proxy pattern analysis, and full lifecycle info (deployer, origin, creating transaction, code changes, self-destruct).
Price / call$0.005
Success—
StatusUnknown
How this service works
TraceFast live Ethereum data: one deployed contract — the hash and size of its current code, what the code exposes (ERC-20 view functions, ERC-165, an EIP-1167 minimal proxy and its target), the proxy pattern detected in it, and its lifecycle: the deploying account, the origin account, the creating transaction, code changes and self-destruction. Path address: The contract address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/contract.md
Output
A JSON object containing: the contract's current bytecode hash and size, detected interface support (ERC-20 view functions, ERC-165), EIP-1167 minimal proxy flag and target address if applicable, the detected proxy pattern, the deploying account address, the origin (EOA) account, the transaction hash that created the contract, a history of code changes, and self-destruct status.
Example use cases
Identify proxy pattern and implementation
“Can you check what proxy pattern the contract at 0xC36442b4a4522E871399CD717aBDD847Ab11FE88 uses and tell me what the proxy target address is?”
Verify contract deployer and origin
“Who originally deployed the contract at 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D on Ethereum — I need the deploying account, the origin account, and the transaction that created it.”
Check if contract has self-destructed
“Has the contract at 0x00000000219ab540356cBB839Cbe05303d7705Fa ever self-destructed or had its code changed? Also tell me the bytecode hash and size.”
Technical details
Endpoint
GEThttps://mpp.tracefast.xyz/api/v1/chains/1/contracts/:address?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need rich, structured contract metadata beyond raw bytecode — specifically when you need proxy detection (EIP-1167 minimal proxy, upgradeable proxy patterns), ERC standard interface detection, or deployer/origin/lifecycle history for a specific Ethereum mainnet contract address. Prefer this over raw RPC calls when you need the full picture in a single request without writing custom parsing logic.
Side effects
- Invalid or malformed address (not 40 hex chars or missing 0x prefix) returns a 400 error
- Address is an EOA (externally owned account), not a contract — returns empty or null contract data
- Contract not yet indexed or very recently deployed — may return incomplete lifecycle data
- Network timeout or upstream Ethereum node unavailability causes 5xx error
- Payment not included or insufficient — x402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — |
Tags
x402
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