# NoJunk Chain Balance

> NoJunk Chain Balance is a paid API for AI agents from nojunk-chain.mick8511.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).

Returns native token balance, USDC balance, and transaction count for a wallet address across 7 EVM chains, Solana, or Bitcoin

## Facts

- Endpoint: GET https://nojunk-chain.mick8511.workers.dev/balance?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nojunk-chain-balance-28a48bed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MNbnnpdx99-XukuniqAaU

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 nojunk-chain-balance-28a48bed
```

Example prompt: What's the native balance, USDC balance, and transaction count for wallet 0x742d35Cc6634C0532925a3b844Bc454e4438f44e across all EVM chains?

## When to prefer this

Use this endpoint when you need to quickly check a wallet's native token balance, USDC holdings, and transaction activity across multiple blockchains in a single call. It is ideal for multi-chain portfolio checks, wallet profiling, and DeFi analytics. It supports EVM chains, Solana, and Bitcoin — making it more versatile than single-chain alternatives. Prefer this over chain-specific RPC calls when you need cross-chain aggregation without managing multiple providers.

## Known failure modes

- Invalid wallet address format returns an error
- Unsupported chain name returns an error
- Network timeouts on individual chains may cause partial results
- Rate limiting or upstream RPC failures may cause empty or error responses
- Address with no activity may return zero balances and zero transaction count

## How this service works

Blockchain Data balance: Wallet address -> native balance, USDC balance and transaction count on 7 EVM chains (one or all in parallel), Solana (SOL + USDC) or Bitcoin.

## Output

Returns an object with per-chain results including native token balance (in ETH/SOL/BTC etc.), USDC balance, and transaction count. For 'all' EVM chains, results are returned in parallel for all 7 chains (base, ethereum, bsc, arbitrum, polygon, optimism, avalanche). For Solana, returns SOL and USDC. For Bitcoin, returns BTC balance.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "chain": {
       "type": "string",
       "description": "Optional: base, ethereum, bsc, arbitrum, polygon, optimism, avalanche, solana, bitcoin or all (default: all 7 EVM chains for a 0x address, solana for base58, bitcoin for a Bitcoin address)"
      },
      "address": {
       "type": "string",
       "description": "Wallet address: EVM 0x + 40 hex, Solana base58 (32-44 chars) or Bitcoin (bc1..., 1..., 3...)"
      }
     }
    }
   },
   "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/nojunk-chain-balance-28a48bed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nojunk-chain.mick8511.workers.dev](https://www.zero.xyz/host/nojunk-chain.mick8511.workers.dev/llms.txt)