# Base Contract Inspector (47620.xyz)

> Base Contract Inspector (47620.xyz) is a paid API for AI agents from 47620.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Checks whether a Base network address is a contract or EOA, returns bytecode size, and for ERC-20 tokens returns name, symbol, and decimals.

## Facts

- Endpoint: GET https://47620.xyz/x/base/contract/:address?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-contract-inspector-47620-xyz-9d7645c1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Cxaw4EeJWEPotLOgLugJu

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 base-contract-inspector-47620-xyz-9d7645c1
```

Example prompt: Can you check whether the Base address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is a smart contract or a regular wallet, and if it's a token contract, tell me its name, symbol, and decimals?

## When to prefer this

Use this endpoint when you need to quickly classify a Base network address as a contract or wallet and optionally retrieve ERC-20 token metadata in a single call. Prefer it over general Ethereum tools when operating specifically on the Base L2 network and when you need bytecode size alongside token identity in one request.

## Known failure modes

- Invalid or malformed address format returns an error
- Address not found or zero-address edge cases may return empty or null fields
- Non-ERC-20 contracts return no token metadata (name/symbol/decimals will be absent or null)
- Network latency or RPC issues may cause timeouts
- Payment failure (insufficient USDC) blocks the request

## How this service works

Whether a base address is a contract, its bytecode size, and (for ERC-20s) name/symbol/decimals.

## Output

Returns a flag indicating whether the address is a contract (true/false), the bytecode size in bytes, and — when the contract implements ERC-20 — the token name, symbol, and decimal places.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-contract-inspector-47620-xyz-9d7645c1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 47620.xyz](https://www.zero.xyz/host/47620.xyz/llms.txt)