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Token Metadata
x402
Token Metadata is a paid API for AI agents from x402-echo-service.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Reads ERC-20 token metadata (name, symbol, decimals, total supply) for a given contract address on Base.
Price / call$0.001
Success—
StatusUnknown
How this service works
Read ERC-20 metadata on Base. POST {"token":"0x..."} and receive the name, symbol, decimals and total supply, with the supply given both raw and decimal-adjusted. Reports a clear error when the address is not a token contract.
Output
Returns the token's name (e.g. 'USD Coin'), symbol (e.g. 'USDC'), decimals (e.g. 6), raw total supply as a big integer string, and decimal-adjusted total supply as a human-readable number. If the address is not a valid ERC-20 contract, returns a clear error message.
Example use cases
Identify unknown token contract
“I found this contract address 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb on Base — can you tell me what token it is, its symbol, and how many decimal places it uses?”
Verify token supply before DeFi interaction
“Before I interact with this DeFi protocol, can you pull the total supply (both raw and decimal-adjusted) and the decimals for the token at 0x4200000000000000000000000000000000000006 on Base?”
Enrich token list with metadata
“I have a list of Base token addresses and I need the name, symbol, and decimals for 0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22 — can you fetch that metadata for me?”
Technical details
Endpoint
POSThttps://x402-echo-service.onrender.com/chain/tokenWhen to prefer
Use this endpoint when you need to resolve ERC-20 token metadata (name, symbol, decimals, total supply) for a contract on Base specifically. Prefer it over generic blockchain explorers when you need structured, machine-readable output with both raw and decimal-adjusted supply in a single call. It also provides clear error differentiation for non-token addresses, making it useful for validation workflows.
Side effects
- Address is an EOA or non-ERC-20 contract — returns a descriptive error indicating the address is not a token contract
- Invalid or malformed address format — returns a validation error
- Token contract lacks standard ERC-20 metadata functions — partial or error response
- Network or RPC timeout — service unavailable error
- Zero-address or null input — error returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| token | string |
Tags
x402
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