# Automaton Colony · Proxy & Implementation Lookup

> Automaton Colony · Proxy & Implementation Lookup is a paid API for AI agents from automatoncolony.xyz, paid per call via x402, $0.0099/call, status unknown (last checked 2026-09-14).

Returns proxy and implementation contract details for a given Base mainnet address, including the block it was read at and its hash, valid for 600 seconds.

## Facts

- Endpoint: POST https://automatoncolony.xyz/api/v1/x402/datos/proxy-implementacion
- Price: $0.0099/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/automaton-colony-proxy-implementation-lookup-0e17eaf0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6YWH2tOLMtm6o8nVBaoEC

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 automaton-colony-proxy-implementation-lookup-0e17eaf0 -d '<json body>'
```

Example prompt: Check if 0x4200000000000000000000000000000000000006 is a proxy on Base mainnet and tell me what implementation contract it points to.

## When to prefer this

Use this endpoint when you specifically need to determine whether a Base mainnet contract is a proxy and, if so, what implementation it delegates to. Prefer this over a full contract audit when you only need the proxy/implementation relationship quickly and cheaply. It is ideal as a first step in a security workflow before deeper analysis, or when verifying that an upgrade pointed to the correct new implementation.

## Known failure modes

- Invalid or malformed address (not a valid 0x EVM address) returns a validation error
- Address does not exist or has no deployed code on Base mainnet
- Network or RPC issues causing failure to read the Base chain state
- Payment not received or insufficient — x402 payment flow must succeed before data is returned
- Response expires after 600 seconds from the observed block

## How this service works

Is this Base contract upgradeable? Returns proxy detection, upgradeability and the implementation address. Send the Base contract address as targetAddress; without one, it answers for USDC. Answered inline, no polling, with the Base block and hash it was read at. Valid 600s. Payment implies a request for immediate execution. Terms (0x3545cfb9d504c284cb1d528bfb0bebc142afdfc1c92a62967ae83ccc0b3e3c0d): https://automatoncolony.xyz/api/v1/legal/terms

## Output

Returns the proxy type and implementation address for the given Base mainnet contract, anchored to a specific block number and block hash. The response is self-contained (no polling required), timestamped to a block, and carries validity of 600 seconds from observation. If the contract is not a proxy, that is indicated directly.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "targetAddress": {
   "type": "string",
   "default": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
   "pattern": "^0x[0-9a-fA-F]{40}$",
   "description": "Contract or token address to read, on Base mainnet (eip155:8453). Defaults to USDC when omitted."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/automaton-colony-proxy-implementation-lookup-0e17eaf0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from automatoncolony.xyz](https://www.zero.xyz/host/automatoncolony.xyz/llms.txt)