# Wallet Balance Lookup

> Wallet Balance Lookup is a paid API for AI agents from preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-29).

Returns the current native-asset balance for a given wallet address on one of six supported blockchains (Bitcoin, Ethereum, Base, Solana, TRON, Ronin)

## Facts

- Endpoint: GET https://preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai/api/x402/wallet-balance?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/wallet-balance-lookup-dc816a0b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_H89vJjjC8c897ujzAG0tt

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 wallet-balance-lookup-dc816a0b
```

Example prompt: What's the current native balance of the Ethereum wallet 0xAbC123...def456? Just give me the balance in ETH.

## When to prefer this

Choose this endpoint when you need a lightweight, real-time native-asset balance check for a single wallet address on one of the six supported chains (Bitcoin, Ethereum, Base, Solana, TRON, Ronin) without setting up an API key or account. It is ideal for spot-checks, verification workflows, or agent pipelines that pay per call via x402. Prefer alternatives if you need token balances (ERC-20, SPL, etc.), historical balances, multi-address batch lookups, or chains outside the supported set.

## Known failure modes

- Invalid or malformed wallet address for the given chain returns an error or empty result
- Unsupported chain value (not one of btc, eth, base, sol, tron, ronin) results in a validation error
- Public RPC node downtime or rate limiting may cause transient failures or stale data
- Payment failure via x402 protocol blocks the request entirely
- Address format mismatch (e.g. EVM address passed for BTC chain) may cause an error or zero balance

## How this service works

Live native-asset wallet balance lookup across 6 chains (Bitcoin, Ethereum, Base, Solana, TRON, Ronin) via public RPCs. One call returns the current balance as JSON. No API key, no signup — x402 per-call payment only.

## Output

A JSON object containing the current native-asset balance for the specified wallet address on the requested blockchain, fetched live via public RPC nodes.

## 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",
     "required": [
      "chain",
      "address"
     ],
     "properties": {
      "chain": {
       "enum": [
        "btc",
        "eth",
        "base",
        "sol",
        "tron",
        "ronin"
       ],
       "type": "string"
      },
      "address": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/wallet-balance-lookup-dc816a0b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai](https://www.zero.xyz/host/preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai/llms.txt)