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ERC-20 Token Lookup by Contract Address
x402
ERC-20 Token Lookup by Contract Address is a paid API for AI agents from dt0ur.online, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-03).
Looks up ERC-20 token metadata and live market data (name, symbol, decimals, total supply, USD price, FDV, proxy status) by contract address across 6 EVM chains
Price / call$0.01
Success—
StatusUnknown
How this service works
ERC-20 token lookup by contract address on base, ethereum, arbitrum, optimism, polygon, bsc: name, symbol, decimals, total supply, live USD price, fully diluted value, and whether the token is an upgradeable proxy (EIP-1967/EIP-1167, with implementation address).
Output
Returns structured token metadata including: token name, symbol, number of decimals, total supply, live USD price, fully diluted valuation (FDV), a boolean indicating whether the contract is an upgradeable proxy (EIP-1967/EIP-1167), and the implementation contract address if applicable.
Example use cases
DeFi token due diligence check
“What token is deployed at 0x4200000000000000000000000000000000000006 on Base? Give me its name, symbol, total supply, current USD price, and whether the contract is an upgradeable proxy.”
Smart contract security audit
“I need to check if the token at 0xDA10009cBd5D07dd0CeCc66161FC93D7c9000da1 on Arbitrum is an EIP-1967 upgradeable proxy — and if so, what's the implementation address behind it?”
Portfolio tracker enrichment
“I have a list of token contract addresses on Polygon and I need the name, symbol, decimals, and live USD price for the token at 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 to enrich my portfolio data.”
Technical details
Endpoint
POSThttps://dt0ur.online/api/onchain/token?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need on-chain ERC-20 token metadata combined with live market pricing in a single call across Base, Ethereum, Arbitrum, Optimism, Polygon, or BSC. Prefer it over generic blockchain explorers when you also need proxy detection (EIP-1967/EIP-1167) and implementation address resolution in one response. It complements the sibling wallet balance endpoint when you need token-level details rather than wallet-level holdings.
Side effects
- Invalid or non-existent contract address returns an error or empty result
- Unsupported chain value outside the allowed enum causes a validation error
- Contract address exists but is not an ERC-20 token may return partial or null metadata
- Price data may be unavailable for very obscure or newly deployed tokens
- Network congestion or RPC issues on the target chain may cause timeouts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | EVM chain: base, ethereum, arbitrum, optimism, polygon, bsc (default base) |
| token | string | Token contract address (0x...) |
Tags
x402
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