zkSync Era ERC-20 balance

$0.01 per call · failed calls are never charged · no account or API key needed

ERC-20 token balance of a wallet on zkSync Era (USDC, USDT, WETH or any token, via balanceOf): raw amount, decimals, symbol and the human-readable amount, live from the token contract. Use to check stablecoin or token holdings before a transfer or trade; for the native coin use zksync_balance. Both inputs are 0x addresses (40 hex characters); no contract returns 404 and a non-ERC-20 contract 422, both uncharged.

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

Try it with your own inputs

Token: a ticker such as USDC, USDT, WETH or DAI, or the 0x ERC-20 contract address
0x wallet address

Uses one of your 25 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
token (required)stringToken: a ticker such as USDC, USDT, WETH or DAI, or the 0x ERC-20 contract address
address (required)string0x wallet address

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/zksync/token-balance?token=0x1d17CBcF0D6D143135aE902365D2E5e2A16538D4&address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/zksync/token-balance?token=0x1d17CBcF0D6D143135aE902365D2E5e2A16538D4&address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&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 or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "chain": "zkSync Era",
  "chainId": 324,
  "token": "0x1d17CBcF0D6D143135aE902365D2E5e2A16538D4",
  "symbol": "USDC",
  "decimals": 6,
  "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "raw": "2500000",
  "balance": "2.5"
}

From an AI agent (MCP)

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

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

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