# AmanChain EVM Wallet Balance (Base)

> AmanChain EVM Wallet Balance (Base) is a paid API for AI agents from amanchain-relay.gitajhd.workers.dev, paid per call via x402, $0.001244/call, status unknown (last checked 2026-09-14).

Returns the native ETH balance and USDC balance of any EVM wallet address on the Base network, queried live against chain state.

## Facts

- Endpoint: POST https://amanchain-relay.gitajhd.workers.dev/api/x402/aman-evm-balance
- Price: $0.001244/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/amanchain-evm-wallet-balance-base-5dcc21d0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FmZsggNaT8p16BmcfNlOJ

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 amanchain-evm-wallet-balance-base-5dcc21d0 -d '<json body>'
```

Example prompt: What's the current ETH and USDC balance of the Base wallet 0x742d35Cc6634C0532925a3b8D4C9C8a0e4E3a1f2?

## When to prefer this

Use this endpoint when you need a quick, no-account, pay-per-call lookup of both native ETH and USDC balances for any Base wallet address simultaneously. Prefer it over general-purpose RPC calls when you want a managed, metered service with no API key setup and guaranteed live consensus state. Best suited for agents that need on-demand balance checks without maintaining blockchain node infrastructure.

## Known failure modes

- Invalid or malformed EVM address returns an error
- Address with zero activity may return zero balances (not an error)
- Network congestion or node unavailability may cause timeouts
- Payment failure via x402 will block the call from executing
- Wrong serviceId in body causes routing error

## How this service works

Native ETH and USDC balance of any address on Base; EVM balance checker API. Deterministic on-chain execution by the AmanChain node — live consensus state, real blocks, pools and balances. Pay per call via x402 (USDC on Base), no account, no API key. POST JSON {"serviceId":"aman-evm-balance","request":"<input>"}.

## Output

Returns the live native ETH balance and USDC token balance for the specified wallet address on Base, sourced from real block state via the AmanChain node. Typically includes numeric balance values for both assets.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "body": {
     "type": "object"
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "example": {
      "ok": true
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/amanchain-evm-wallet-balance-base-5dcc21d0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from amanchain-relay.gitajhd.workers.dev](https://www.zero.xyz/host/amanchain-relay.gitajhd.workers.dev/llms.txt)