# 47620.xyz Base ETH Balance Lookup

> 47620.xyz Base ETH Balance Lookup is a paid API for AI agents from 47620.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Returns the native ETH balance and live USD value for a given Base network address.

## Facts

- Endpoint: GET https://47620.xyz/x/base/balance/:address?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/47620-xyz-base-eth-balance-lookup-d70d4ee1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eA3HbhrX66tczJHZz4Ksp

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 47620-xyz-base-eth-balance-lookup-d70d4ee1
```

Example prompt: What's the current ETH balance and live USD value for the Base address 0x1234abcd...? I want to know if this wallet is funded.

## When to prefer this

Choose this endpoint when you need a quick, single-call lookup of the native ETH balance and live USD valuation for a specific Base network address. It is ideal for pre-flight checks before sending transactions, assessing wallet funding, or monitoring agent treasury accounts on Base. Prefer it over stablecoin balance endpoints when you specifically need the native token (ETH), not ERC-20s.

## Known failure modes

- Invalid or malformed Base address returns an error response
- Address not found or never transacted on Base may return a zero balance
- Network congestion or RPC downtime may cause timeouts
- USD price feed unavailability could result in missing or stale USD conversion
- Requests without valid x402 payment header will be rejected

## How this service works

Native ETH balance (and live USD value) for any base address.

## Output

Returns the native ETH balance held at the specified Base address along with its live USD equivalent value, allowing agents to assess wallet funding and real-time asset worth in a single call.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/47620-xyz-base-eth-balance-lookup-d70d4ee1/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)