# EVM Wallet Native Balance Lookup

> EVM Wallet Native Balance Lookup is a paid API for AI agents from pyfile-agent.taile3ff35.ts.net:10000, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns the native token balance of an EVM-compatible wallet address on a specified chain (e.g. Base, Ethereum)

## Facts

- Endpoint: GET https://pyfile-agent.taile3ff35.ts.net:10000/data/wallet/balance
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/evm-wallet-native-balance-lookup-1f06bca6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Xx2TuCSDk3U3V_iqLtvT9

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 evm-wallet-native-balance-lookup-1f06bca6
```

Example prompt: What's the current native token balance of the wallet 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97 on Base?

## When to prefer this

Use this endpoint when you need a quick, low-cost read of an EVM wallet's native token balance (ETH on Ethereum or Base, MATIC on Polygon, etc.) on a specific chain. Prefer this over general blockchain explorers when you need a programmatic, agent-callable API rather than a UI lookup. Best suited for pre-flight fund checks, portfolio snapshots, or counterparty verification in agentic workflows.

## Known failure modes

- Invalid or malformed wallet address returns an error or empty result
- Unsupported chain name causes a lookup failure
- Network or RPC node timeout leads to a failed response
- Missing required query parameters (address or chain) causes a 400-style error
- Address with zero balance may return 0 rather than an error

## How this service works

Native balance of an EVM wallet. ?address=0x...&chain=base

## Output

Returns the native token balance (e.g. ETH, MATIC) of the queried wallet address on the specified EVM chain, expressed as a numeric value (likely in wei or ether-denominated units depending on implementation).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "type": "string"
      },
      "address": {
       "type": "string"
      }
     }
    }
   }
  },
  "output": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/evm-wallet-native-balance-lookup-1f06bca6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pyfile-agent.taile3ff35.ts.net:10000](https://www.zero.xyz/host/pyfile-agent.taile3ff35.ts.net%3A10000/llms.txt)