# Etherscan Account Balance via StableCrypto

> Etherscan Account Balance via StableCrypto is a paid API for AI agents from stablecrypto.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the ETH (or native token) balance for a given wallet address on any EVM-compatible chain using Etherscan-style account balance lookup

## Facts

- Endpoint: POST https://stablecrypto.dev/api/etherscan/account/balance
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/etherscan-account-balance-via-stablecrypto-d094166c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dqqLkOcHFl1uWB99wiSyZ

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 etherscan-account-balance-via-stablecrypto-d094166c -d '<json body>'
```

Example prompt: What's the current ETH balance for wallet address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum mainnet (chain ID 1)?

## When to prefer this

Use this endpoint when you need a quick, low-cost lookup of a wallet's native token balance on any EVM chain. Prefer this over full portfolio endpoints when you only need the base ETH/native balance (not ERC-20 tokens or NFTs), and when you want a straightforward Etherscan-style balance check without aggregating multi-token data.

## Known failure modes

- Invalid or malformed wallet address returns an error or zero balance
- Unsupported chain ID returns an error or empty response
- Rate limiting or upstream Etherscan API unavailability causes a 5xx error
- Missing required fields (address or chainid) returns a validation error
- Address with no on-chain activity may return zero balance without error

## How this service works

Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.

## Output

Returns the native token balance (e.g. ETH, MATIC, or ETH on Base) for the specified wallet address on the given EVM chain, typically as a numeric value in wei or a human-readable unit, as of the specified block tag (defaulting to latest).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "tag": {
   "type": "string",
   "description": "Block tag (e.g. \"latest\")"
  },
  "address": {
   "type": "string",
   "description": "Wallet address"
  },
  "chainid": {
   "type": "number",
   "description": "EVM chain ID (1=Ethereum, 137=Polygon, 8453=Base, etc.)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/etherscan-account-balance-via-stablecrypto-d094166c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablecrypto.dev](https://www.zero.xyz/host/stablecrypto.dev/llms.txt)