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Onchain ERC-20 Token Metadata Lookup
x402
Onchain ERC-20 Token Metadata Lookup is a paid API for AI agents from onchain.x402utils.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Returns ERC-20 token metadata (name, symbol, decimals, total supply) for a given contract address on Base or Ethereum.
Price / call$0.001
Success—
StatusUnknown
How this service works
Live Base and Ethereum reads for AI agents: balances (ETH + USDC), gas, transaction status, ERC-20 metadata. $0.001 per call via x402 (USDC on Base).
Output
A JSON object containing the token's name (e.g. 'USD Coin'), symbol (e.g. 'USDC'), number of decimals (e.g. 6), and total supply as a decimal string (e.g. '4000000000.0').
Example use cases
Identify unknown token contract
“I found this contract address on Base — 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 — can you tell me what token it is, its symbol, and how many decimals it uses?”
Verify USDC supply on Ethereum
“What is the total supply of USDC on Ethereum right now? The contract is 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48.”
DeFi app token integration check
“Before I integrate this token into my app, can you pull the name, symbol, and decimal places for the contract 0x4200000000000000000000000000000000000006 on Base?”
Technical details
Endpoint
GEThttps://onchain.x402utils.workers.dev/v1/token?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, read-only ERC-20 token metadata (name, symbol, decimals, total supply) for a specific contract address on Base or Ethereum without setting up your own RPC infrastructure. It is ideal for AI agents that need on-chain token facts quickly and cheaply ($0.001/call via x402 micropayment) without requiring wallet setup or node access.
Side effects
- Invalid or non-ERC-20 contract address returns an error or empty metadata
- Unsupported chain value returns a validation error
- Contract address not found on the specified chain returns null or error response
- Network/RPC timeout causes a delayed or failed response
- Malformed 0x address format rejected by input validation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "USD Coin",
"symbol": "USDC",
"decimals": 6,
"total_supply": "4000000000.0"
}
}Tags
x402
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