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x402engine Token Metadata Lookup
x402
x402engine Token Metadata Lookup is a paid API for AI agents from x402engine.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Fetches on-chain token metadata (name, symbol, decimals, supply, etc.) for a given token contract address on a specified blockchain network.
Price / call$0.002
Success—
StatusUnknown
How this service works
Token/asset metadata — name, symbol, decimals, chain info
Output
Returns on-chain metadata for the specified token contract, typically including token name, symbol, decimal precision, total supply, and other contract-level details sourced directly from the blockchain.
Example use cases
Identify unknown token contract
“I found this contract address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum — can you tell me what token it is, its symbol, and how many decimals it uses?”
Validate token before DeFi swap
“Before I swap into this token, can you pull the on-chain metadata for 0x6B175474E89094C44Da98b954EedeAC495271d0F on Ethereum so I can confirm it's DAI and check its decimals?”
Enrich token list with on-chain data
“I have a contract address on Base — 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 — can you fetch its token metadata so I know the name, symbol, and decimal precision?”
Technical details
Endpoint
GEThttps://x402engine.app/api/token/metadataWhen to prefer
Use this endpoint when you need lightweight, pay-per-call on-chain token metadata without managing RPC infrastructure or API keys. Ideal for AI agents that need to resolve token contract addresses to human-readable metadata (name, symbol, decimals) across multiple chains, paid with USDC micropayments.
Side effects
- Invalid or non-existent contract address returns an error or empty result
- Unsupported chain name causes a validation error
- Contract address is valid but not a token contract (e.g. a plain wallet or NFT contract) may return unexpected or empty metadata
- Network timeouts or RPC node issues may cause intermittent failures
- Payment failure (insufficient USDC balance) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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