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ERC-20 Token Info API (Base/Ethereum)
x402
ERC-20 Token Info API (Base/Ethereum) is a paid API for AI agents from build-4c941cab041172e9439ece2f.emblem.build, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Returns on-chain metadata and USD price for any ERC-20 token on Base or Ethereum, including name, symbol, decimals, and total supply.
Price / call$0.003
Success—
StatusUnknown
How this service works
ERC-20 token report on Base/Ethereum: name, symbol, decimals, total supply, USD price. Onchain pay-per-call in USDC.
Output
Returns a structured report for the given ERC-20 token contract including: human-readable name, ticker symbol, decimal precision, total supply (in token units), and current USD price sourced from on-chain/oracle data. Useful for token identification, valuation, and metadata enrichment.
Example use cases
DeFi research token deep-dive
“What's the full on-chain profile of the token at contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base — give me the name, symbol, decimals, total supply, and USD price.”
Verify unfamiliar token before swap
“Before I swap into this token, can you look up the contract 0x4200000000000000000000000000000000000006 on Base and tell me its official name, symbol, decimal places, and current price in USD?”
Portfolio valuation data fetch
“I need the total supply and current USD price for the ERC-20 token at 0x6B175474E89094C44Da98b954EedeAC495271d0F on Ethereum so I can calculate my portfolio position value.”
Technical details
Endpoint
POSThttps://build-4c941cab041172e9439ece2f.emblem.build/pub/tasks/x402-onchain/api/tokenWhen to prefer
Choose this endpoint when you need a single, comprehensive ERC-20 token metadata report (name, symbol, decimals, supply, and USD price) for a known contract address on Base or Ethereum, without needing to query multiple separate APIs. It is particularly well-suited for DeFi agents, portfolio trackers, and token verification flows that require structured on-chain data with minimal setup and pay-per-call USDC pricing.
Side effects
- Invalid or non-ERC-20 contract address returns an error or empty metadata
- Contract exists but has no price feed — USD price field may be null or zero
- Wrong network specified (Base vs Ethereum) causes mismatched or failed lookup
- Payment failure via x402/USDC results in 402 Payment Required response
- Rate limiting or RPC node issues may cause intermittent failures
Tags
x402
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