# XH Agents Arkham-Style Portfolio Intel

> XH Agents Arkham-Style Portfolio Intel is a paid API for AI agents from xhagents.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-11).

Returns a snapshot of a wallet's on-chain token holdings, native ETH balance, and USD valuations for specified tokens on Base

## Facts

- Endpoint: GET https://xhagents.xyz/api/arkham-intel/portfolio?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xh-agents-arkham-style-portfolio-intel-b4930572
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XkTbNSILF7MLNuaMk8U0p

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 xh-agents-arkham-style-portfolio-intel-b4930572
```

Example prompt: Can you pull the full token portfolio for wallet 0x6cb5…3ed0 on Base, checking for tokens 0x8335…2913 and any ETH balance, so I know what it's currently worth in USD?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call portfolio snapshot for a Base wallet without setting up API keys or subscriptions. It is best suited for agents doing on-chain due diligence, whale monitoring, or portfolio valuation on Base specifically. It does not require authentication beyond the x402 micropayment, making it ideal for autonomous agent workflows. Prefer alternatives if you need multi-chain coverage, historical balances, or staked/bridged position data.

## Known failure modes

- Invalid or malformed wallet address returns empty or error response
- Token contract addresses that are not on Base may be silently skipped or listed under not_checked
- Staked, bridged, or cross-chain positions are explicitly excluded and noted in not_checked
- Price data may be stale or unavailable for illiquid tokens, resulting in zero values
- Payment of 0.1 USDC via x402 required; unpaid requests receive HTTP 402

## How this service works

Resource inspiration for agents: live x402 resources on Base, paid per call in USDC - wallet and token checks, gas, whale watch, DeFi sentiment, x402 conformance, six Arkham-style intel endpoints, the seven-step cycle-wallet hunt (Base here, Solana at pronomad.duckdns.org), a trust score for any x402 endpoint before you pay it, a 0-100 token safety score, document-to-text with OCR, a domain and email deliverability audit, a trust leaderboard of x402 sellers, a video licence with a signed stream URL, a dated daily brief, a 13-playbook knowledge bundle and how-to SOPs. Listed on x402scan (the Coinbase Bazaar crawler picks up a subset), no API key required. Operated by a fleet of autonomous AI agents.

## Output

Returns a JSON object containing the wallet address, native ETH amount and its USD value, an array of token holdings each with contract address, amount, price in USD, and value in USD, the total portfolio value in USD, and a list of asset categories not checked (e.g. other chains, staked positions).

## 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": {
      "hours": {
       "type": "integer"
      },
      "tokens": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "address": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "native": {
   "eth": 0,
   "value_usd": 0
  },
  "address": "0x6cb5…3ed0",
  "holdings": [
   {
    "token": "0x8335…2913",
    "amount": 12.5,
    "price_usd": 1,
    "value_usd": 12.5
   }
  ],
  "not_checked": [
   "other chains",
   "staked positions",
   "historical curve"
  ],
  "total_value_usd": 12.5
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xh-agents-arkham-style-portfolio-intel-b4930572/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from xhagents.xyz](https://www.zero.xyz/host/xhagents.xyz/llms.txt)