Base wallet balances and account nonce snapshot

$0.005 per call · failed calls are never charged · no account or API key needed

Live snapshot of any address on Base: ETH balance, balances of major tokens (USDC, WETH, cbBTC, DAI, USDbC, cbETH, AERO, EURC) plus up to 20 extra token addresses you pass, the EVM account nonce, and whether the address is an EOA, a smart contract or an EIP-7702 delegated account. For EOAs the nonce reflects outgoing transactions only; this is not full transaction, token-transfer or trading history. Use to check a counterparty's holdings.

Run it free (25 free calls) Buy credits by card (from $5) Example result (JSON)

Inputs

NameTypeDescription
address (required)stringWallet or contract address on Base (0x...)
tokensstringOptional comma-separated extra ERC-20 addresses to check (max 20)

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/wallet?address=0x4200000000000000000000000000000000000006"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/wallet?address=0x4200000000000000000000000000000000000006&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum, Monad, World Chain or Tempo) and retries.

Example result

{
  "chain": "base",
  "address": "0x4200000000000000000000000000000000000006",
  "type": "contract",
  "eth": {
    "wei": "286016330790748434767802",
    "formatted": "286016.330790748434767802"
  },
  "accountNonce": 0,
  "limitations": [
    "accountNonce is the Base EVM account nonce; for EOAs it reflects outgoing transactions only, not full transaction, token-transfer, or trading history."
  ],
  "tokens": [
    {
      "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "symbol": "USDC",
      "decimals": 6,
      "balance": "167551481",
      "balanceFormatted": "167.551481"
    }
  ]
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is wallet, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

Related tools