XH Agents — EVM Address Profile on Base

x402

XH Agents — EVM Address Profile on Base is a paid API for AI agents from xhagents.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-09).

Returns balances, contract status, nonce, recent USDC activity, and known-address labels for any Base EVM address.

Price / call$0.1

Seller volume →—

Success—

StatusUnknown

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

A JSON object containing the address's ETH balance, USDC balance, nonce, a boolean indicating whether it is a smart contract, a list of human-readable labels (e.g. 'WETH (Base predeploy)'), and the count of recent USDC transfers.

Example use cases

Identify an unknown Base address

“I just received a transfer from 0xAbCd1234... on Base — can you look it up and tell me if it's a known protocol, what its balances are, and whether it's a contract or a regular wallet?”

Pre-trade counterparty due diligence

“Before I send 500 USDC to 0x7F5c764cBc14f9669B88837ca1490cCa17c31607 on Base, can you check if it's a contract, what its current balances are, and whether it has any known labels?”

Monitor a DeFi protocol address

“Pull an on-chain profile for 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base — I need its USDC and ETH balances, nonce, contract status, and how many USDC transfers it's made recently.”

Technical details

Endpoint

POSThttps://xhagents.xyz/api/wallet-profile?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a comprehensive snapshot of a Base address in a single call — combining balances, contract detection, nonce, known labels, and USDC activity — rather than making multiple separate RPC or explorer calls. It is especially useful for agent workflows that need to classify or profile an unknown address before taking action.

Side effects

Invalid or malformed Ethereum address returns an error or empty result
Unsupported chain_id (non-Base) may return an error or no data
Payment failure (402) if USDC payment is not included or insufficient
Address with no on-chain activity may return zero balances and empty labels
Rate limiting or provider downtime returning 5xx errors

Input

Schema · Request body

Field	Type	Description
address	string
chain_id	integer

Output

Schema · Response

{
  "type": "json",
  "example": {
    "nonce": 0,
    "labels": [
      "WETH (Base predeploy)"
    ],
    "address": "0x4200000000000000000000000000000000000006",
    "balance_eth": "0.0",
    "is_contract": true,
    "balance_usdc": "0.0",
    "recent_usdc_transfers": 3
  }
}

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