# Base ETH Balance Lookup

> Base ETH Balance Lookup is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).

Returns the native ETH balance of a given wallet address on the Base L2 network using live Coinbase Exchange or Base RPC data.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/crypto-base-eth-balance-market-research?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-eth-balance-lookup-9402254d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__oPvRtIbjMZ7TbKQ0m4H2

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-eth-balance-lookup-9402254d -d '<json body>'
```

Example prompt: What's the current ETH balance on the Base network for wallet address 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C?

## When to prefer this

Use this endpoint when you need a live, real-time native ETH balance on the Base L2 network specifically — not Ethereum mainnet or other EVM chains. Prefer this over generic blockchain explorers when you need a low-latency, pay-per-call lookup with no API key setup, or when the use case involves market research on Base wallet holdings.

## Known failure modes

- Invalid or malformed Ethereum address returns an error
- Address not found or has zero activity may return 0 balance
- RPC or Coinbase data source temporarily unavailable causes timeout or 503
- Network congestion may cause delayed or stale balance data

## How this service works

Base ETH wallet balance for Market research: Read an address native ETH balance on Base. Focus: market research. Uses live Coinbase Exchange or Base RPC data.

## Output

Returns the native ETH balance of the specified wallet address on the Base L2 network, sourced from live Coinbase Exchange or Base RPC data, expressed as a numeric ETH amount.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string",
   "default": "0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-eth-balance-lookup-9402254d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)