# Riley Craig x402 Agent Store — Crypto Wallet Holdings Lookup

> Riley Craig x402 Agent Store — Crypto Wallet Holdings Lookup is a paid API for AI agents from x402-agent-store.rileycraig14.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns token holdings, USD values, and portfolio breakdown for a given on-chain wallet address across multiple EVM chains

## Facts

- Endpoint: GET https://x402-agent-store.rileycraig14.workers.dev/crypto/wallet
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/riley-craig-x402-agent-store-crypto-wallet-holdings-lookup-2b7689ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-hZJRQq7yg8KAdkvDpPSU

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 riley-craig-x402-agent-store-crypto-wallet-holdings-lookup-2b7689ac
```

Example prompt: What tokens and total USD value does the wallet 0x1234...abcd hold on Base — show me the full holdings breakdown including the top position.

## When to prefer this

Use this endpoint when you need on-chain wallet portfolio data — token holdings and USD valuations — across EVM-compatible chains (Base, Ethereum, Optimism, Arbitrum, Polygon) without API key setup, paying per call in USDC via x402. Prefer this over general blockchain explorers when you need structured, agent-ready portfolio data with USD values rather than raw transaction history.

## Known failure modes

- Invalid wallet address format returns an error
- Unsupported chain identifier results in a bad request
- Wallet with no holdings returns empty holdings array
- Network timeout or RPC unavailability causes a service error
- Payment failure via x402 prevents the response from being returned

## How this service works

Look up any wallet's token holdings with live USD values: every ERC-20 position with amount, price, USD value and portfolio %, total portfolio value, top-position concentration, and spam/unpriced filtering. The 'bagcheck' call for copy-trading, risk, research and portfolio agents. Across Base, Ethereum, Optimism, Arbitrum, Polygon. Free upstream (Blockscout).

## Output

A JSON object containing an array of token holdings with symbol and USD value, total portfolio USD value, token count, and top position with symbol and percentage of portfolio.

## 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": [
      "wallet"
     ],
     "properties": {
      "chain": {
       "type": "string",
       "description": "base|ethereum|optimism|arbitrum|polygon (default base)"
      },
      "wallet": {
       "type": "string",
       "description": "Wallet address (0x...)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "holdings": {
       "type": "array"
      },
      "total_usd_value": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "holdings": [
   {
    "symbol": "ETH",
    "usd_value": 99826.71
   }
  ],
  "token_count": 23,
  "top_position": {
   "pct": 54.2,
   "symbol": "ETH"
  },
  "total_usd_value": 184220.45
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/riley-craig-x402-agent-store-crypto-wallet-holdings-lookup-2b7689ac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent-store.rileycraig14.workers.dev](https://www.zero.xyz/host/x402-agent-store.rileycraig14.workers.dev/llms.txt)