# hcrb.in ETH & USDC Balance Check

> hcrb.in ETH & USDC Balance Check is a paid API for AI agents from hcrb.in, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-20).

Returns native ETH balance and one ERC-20 token balance (defaulting to USDC) for any EVM address on Base, with raw and formatted amounts and a signed receipt.

## Facts

- Endpoint: POST https://hcrb.in/v1/tools/balance-check/call?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hcrb-in-eth-usdc-balance-check-de646989
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_b-VUiGnta1ELWAZ_gIMAc

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 hcrb-in-eth-usdc-balance-check-de646989 -d '<json body>'
```

Example prompt: What's the ETH and USDC balance for wallet 0xAbC123...def456 on Base right now? I want raw and formatted amounts with a signed receipt.

## When to prefer this

Choose this endpoint when you need a single, verifiable on-chain balance check for ETH plus one ERC-20 token on Base, especially when a signed receipt is required for proof or audit purposes. Prefer it over generic blockchain explorers when you need programmatic, structured output with both raw and formatted amounts in one call.

## Known failure modes

- Invalid or malformed EVM address returns an error
- Token contract address not deployed on Base returns zero or error
- Network congestion may cause slow RPC responses
- Non-0x-prefixed address rejected by schema validation
- USDC default may not apply if wrong chain context assumed

## How this service works

Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt.

## Output

Returns native ETH balance and one ERC-20 token balance (defaulting to USDC on Base) in both raw (wei/smallest unit) and human-readable formatted form, along with a cryptographically signed receipt attesting to the result.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "address"
   ],
   "properties": {
    "address": {
     "type": "string",
     "description": "EVM address, 0x-prefixed."
    },
    "token_address": {
     "type": "string",
     "description": "ERC-20 token contract address (optional; defaults to USDC on Base)."
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hcrb-in-eth-usdc-balance-check-de646989/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hcrb.in](https://www.zero.xyz/host/hcrb.in/llms.txt)