# anywaypossible.com Base Wallet Balance

> anywaypossible.com Base Wallet Balance is a paid API for AI agents from anywaypossible.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns live ETH and USDC wallet balances on the Base blockchain for any EVM address, including atomic values, block height, contract address, and observation timestamp.

## Facts

- Endpoint: POST https://anywaypossible.com/api/base-balance
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/anywaypossible-com-base-wallet-balance-05192dd8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p7CTEzmG4VIU4nYm-G4gV

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 anywaypossible-com-base-wallet-balance-05192dd8 -d '<json body>'
```

Example prompt: Before you send that USDC payment, can you check the current ETH and USDC balance on Base for wallet address 0x1234abcd...5678 and confirm there are enough funds?

## When to prefer this

Use this endpoint when an AI agent needs a real-time, pre-transaction balance check on the Base blockchain specifically — especially before autonomous payments or DeFi actions. Prefer this over generic blockchain explorers when you need atomic-unit values, block height context, and observation timestamps in a single structured API response with no API key required.

## Known failure modes

- Invalid or malformed EVM address returns an error response
- Network or RPC node unavailability may cause timeouts or stale data
- Non-Base EVM addresses may return zero balances if queried against the wrong chain
- Payment failure (x402) if the 0.001 USDC fee is not included in the request

## How this service works

Live Base wallet balance for AI agents. Returns native ETH and Circle USDC balances, atomic values, block height, contract address, and observation time for any EVM address. Includes a machine-readable upgrade path to treasury readiness for spend, gas-reserve, and wallet-health decisions. No API key.

## Output

A JSON response containing the native ETH balance, Circle USDC balance (both in atomic/wei units and human-readable form), current block height on Base, the USDC contract address used, and the UTC timestamp of the observation.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json",
      "form-data",
      "text"
     ]
    },
    "body": {
     "type": "object",
     "properties": {
      "address": {
       "type": "string",
       "pattern": "^0x[a-fA-F0-9]{40}$",
       "description": "EVM wallet address on Base"
      }
     },
     "required": [
      "address"
     ]
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "address": {
       "type": "string"
      },
      "network": {
       "type": "string"
      },
      "chainId": {
       "type": "integer"
      },
      "eth": {
       "type": "string"
      },
      "usdc": {
       "type": "string"
      },
      "ethAtomic": {
       "type": "string"
      },
      "usdcAtomic": {
       "type": "string"
      },
      "blockNumber": {
       "type": "integer"
      },
      "observedAt": {
       "type": "string",
       "format": "date-time"
      },
      "recommendedNext": {
       "type": "object"
      }
     },
     "required": [
      "address",
      "network",
      "chainId",
      "eth",
      "usdc",
      "ethAtomic",
      "usdcAtomic",
      "blockNumber",
      "observedAt"
     ]
    }
   },
   "required": [
    "type"
   ]
  }
 },
 "required": [
  "input"
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/anywaypossible-com-base-wallet-balance-05192dd8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from anywaypossible.com](https://www.zero.xyz/host/anywaypossible.com/llms.txt)