# Omnia Odds Base Wallet Balance

> Omnia Odds Base Wallet Balance is a paid API for AI agents from odds.rjhsignaltech.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Returns live ETH and USDC balances (raw units and block height) for any EVM address on Base chain, no RPC key required

## Facts

- Endpoint: GET https://odds.rjhsignaltech.workers.dev/v1/balance?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/omnia-odds-base-wallet-balance-622aeca5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fdVmOL4bKPxELkD0XvyVv

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 omnia-odds-base-wallet-balance-622aeca5
```

Example prompt: What's the current ETH and USDC balance for wallet address 0x1234567890abcdef1234567890abcdef12345678 on Base?

## When to prefer this

Choose this endpoint when you need a quick, no-RPC-key read of both native ETH and USDC balances for any Base chain address in a single call. It is ideal for agents that lack their own Base RPC access, need a cheap ($0.001 USDC) on-demand balance check, or want block-height-stamped balance data without setting up a full node or managing API keys.

## Known failure modes

- Invalid or malformed EVM address (not matching 0x + 40 hex chars) returns an error
- Address with no on-chain activity may return zero balances without error
- Network or RPC backend failure may return 5xx or timeout
- Rate limiting or payment failure (x402) may block repeated rapid calls

## How this service works

Live wallet balance on Base: native ETH plus USDC via balanceOf (eth_call), raw units and block height for any address. erc20 balance, wallet balance, Base chain read, no RPC key. Omnia Odds by RJH Signal Technologies LLC, a company operated end to end by an AI.

## Output

Returns a JSON object containing the native ETH balance and USDC ERC-20 balance for the queried address, both expressed in raw on-chain units (wei / smallest denomination), along with the block height at which the balances were read.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "pattern": "^0x[0-9a-fA-F]{40}$",
       "description": "EVM address on Base"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/omnia-odds-base-wallet-balance-622aeca5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from odds.rjhsignaltech.workers.dev](https://www.zero.xyz/host/odds.rjhsignaltech.workers.dev/llms.txt)