# Vextorium EVM Balance Checker – Secondary Chains (BNB, Avalanche, Gnosis, Linea, Scroll, Sonic, Unichain)

> Vextorium EVM Balance Checker – Secondary Chains (BNB, Avalanche, Gnosis, Linea, Scroll, Sonic, Unichain) is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-20).

Returns native coin balance, USDC, USDT, and transaction nonce for an EVM address across seven secondary chains: BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic, and Unichain.

## Facts

- Endpoint: POST https://api.vextorium.com/saldo-otras-redes-pago?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/vextorium-evm-balance-checker-secondary-chains-bnb-avalanche-gnosis-fada57ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FvHa24_yXNPM2JkN0lFtC

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 vextorium-evm-balance-checker-secondary-chains-bnb-avalanche-gnosis-fada57ed -d '<json body>'
```

Example prompt: What are the native coin, USDC, and USDT balances — and transaction count — for wallet 0xF977814e90dA44bFA03b6295A0616a897441aceC on BNB Chain, Avalanche, Linea, and Scroll?

## When to prefer this

Use this endpoint when you need balances specifically on the secondary EVM chains (BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic, Unichain) rather than the primary chains (Base, Ethereum, Arbitrum, Optimism, Polygon). If you need all 12 chains at once, use the sibling all-chains endpoint. Choose this endpoint when you only care about a subset of these seven chains and want to filter via the optional 'redes' parameter.

## Known failure modes

- Invalid or malformed EVM address returns an error or null balances
- Unsupported chain name in the redes array is silently ignored or returns null
- Public RPC node downtime may cause null or missing data for specific chains
- Network timeout on slow chains (e.g. Scroll, Linea) may produce incomplete results
- Missing required 'direccion' field causes a validation error

## How this service works

Balance of an EVM address on seven more chains: BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain: native coin, USDC and USDT, plus nonce (transactions sent) on each.

## Output

A JSON object containing an array of per-chain results, each with the chain name (red), USDC balance, USDT balance, nonce (number of transactions sent), native coin symbol (nativo), and native coin balance (saldo_nativo). Also includes the queried address and the data source (public RPC nodes via publicnode.com).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "redes": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "description": "bnb, avalanche, gnosis, linea, scroll, sonic, unichain (default all)"
  },
  "direccion": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "redes": [
   {
    "red": "bnb",
    "USDC": 100000000.0003838,
    "USDT": 100000007.9844375,
    "nonce": 11268,
    "nativo": "BNB",
    "saldo_nativo": 7198702.734238234
   },
   {
    "red": "avalanche",
    "USDC": 0,
    "USDT": 8.867977,
    "nonce": 0,
    "nativo": "AVAX",
    "saldo_nativo": 0.2883985169143726
   }
  ],
  "fuente": "Nodos públicos (publicnode.com)",
  "direccion": "0xF977814e90dA44bFA03b6295A0616a897441aceC"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-evm-balance-checker-secondary-chains-bnb-avalanche-gnosis-fada57ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)