# SiteSignal Public Base Wallet Balance Snapshot

> SiteSignal Public Base Wallet Balance Snapshot is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).

Returns a point-in-time snapshot of native ETH and USDC balances for any EVM address on Base mainnet

## Facts

- Endpoint: GET https://phases-prot-shine-royal.trycloudflare.com/x402/base-wallet-balance
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-public-base-wallet-balance-snapshot-b8d5c59b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-_jy7BR2APAdx_QPMIhNl

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 sitesignal-public-base-wallet-balance-snapshot-b8d5c59b
```

Example prompt: What are the current ETH and USDC balances for the wallet 0x1234567890abcdef1234567890abcdef12345678 on Base mainnet?

## When to prefer this

Choose this endpoint when you need a fast, cheap ($0.01 USDC) read-only balance check for a single EVM address on Base mainnet without running your own node or managing RPC infrastructure. Ideal for agents that need to verify wallet balances, confirm payments, or enrich address data with live on-chain state.

## Known failure modes

- Invalid or malformed EVM address (not matching 0x + 40 hex chars) returns a validation error
- RPC node unavailability or Base mainnet downtime may cause lookup failure
- Address with no on-chain activity may return zero balances without error
- Rate limiting or payment failure for the $0.01 USDC x402 fee may block the request

## How this service works

Return point-in-time public native ETH and native Base USDC balances for one EVM address from Base mainnet RPC.

## Output

Returns the current native ETH balance and native USDC balance for the specified EVM address on Base mainnet, captured as a point-in-time snapshot directly from the Base mainnet RPC node.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "pattern": "^0x[0-9a-fA-F]{40}$",
       "description": "Public EVM address."
      }
     }
    }
   },
   "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/sitesignal-public-base-wallet-balance-snapshot-b8d5c59b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phases-prot-shine-royal.trycloudflare.com](https://www.zero.xyz/host/phases-prot-shine-royal.trycloudflare.com/llms.txt)