# Tollex Wallet Native Balance

> Tollex Wallet Native Balance is a paid API for AI agents from api.tollex.org, paid per call via x402, $0.0079/call, status unknown (last checked 2026-10-11).

Returns the native token balance of a given EVM wallet address on-chain, paid per call via x402 micropayment in USDC

## Facts

- Endpoint: POST https://api.tollex.org/tools/wallet_native_balance?utm_source=zero.xyz
- Price: $0.0079/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tollex-wallet-native-balance-a2146f7d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vwrbxWzAW8-uDmwuKqNc_

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 tollex-wallet-native-balance-a2146f7d -d '<json body>'
```

Example prompt: What's the native token balance of the wallet 0x4e83362442b8d1bec281931b9e6e61be9b5a4321 right now?

## When to prefer this

Use this endpoint when an AI agent needs a quick, pay-per-use native token balance lookup for any EVM wallet address without requiring a dedicated RPC node setup. Ideal for agents that only occasionally need balance checks and want to pay micropayments via x402/USDC rather than maintaining API subscriptions. Prefer this over self-hosted RPC calls when operating under policy-controlled agent spending rules on the Tollex platform.

## Known failure modes

- Invalid or malformed address (not matching ^0x[0-9a-fA-F]{40}$) returns a validation error
- Payment failure or insufficient USDC for the $0.0078 per-call fee results in a 402 response
- Address is valid but has zero balance — returns 0 rather than an error
- Network or RPC timeout causes a retrieval failure
- Uncertain payment reconciliation may delay receipt delivery

## How this service works

Tollex lets software agents buy APIs and tools under rules you set: it finds a capability that fits, checks your policy before anything is signed, pays with x402 in USDC on Base or USDG on Robinhood Chain, reconciles uncertain payments and returns a signed receipt.

## Output

Returns the native token balance (e.g. ETH, gas token) held at the specified EVM wallet address, expressed as an on-chain value. The response includes the balance amount for the queried address, confirmed via a signed receipt from the Tollex payment and reconciliation layer.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string",
   "pattern": "^0x[0-9a-fA-F]{40}$"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": {
   "id": "wallet_native_balance",
   "version": "1.0.0",
   "provider": "tollex.robinhood-chain"
  },
  "result": {
   "wei": "7897952253800000",
   "nonce": 1,
   "address": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168"
  },
  "evidence": [],
  "untrustedOutput": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tollex-wallet-native-balance-a2146f7d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tollex.org](https://www.zero.xyz/host/api.tollex.org/llms.txt)