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BlockNotify ERC-20 Token Resolver
x402
BlockNotify ERC-20 Token Resolver is a paid API for AI agents from x402.blocknotify.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Resolves and normalizes ERC-20 token metadata (name, symbol, decimals) from a contract address on EVM chains
Price / call$0.005
Success—
StatusUnknown
How this service works
Resolve and normalize ERC-20 token metadata from a contract address. Returns token name, symbol, decimals, and normalized identity so agents can safely interpret token interactions.
Output
Returns the token's canonical name (e.g. 'USD Coin'), symbol (e.g. 'USDC'), and decimal precision (e.g. 6), providing a normalized token identity that agents can use to safely interpret on-chain token interactions and human-readable amounts.
Example use cases
Example prompt
“What ERC-20 token is at contract address 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum mainnet — give me the name, symbol, and decimals so I can safely interpret the transfer amounts.”
Technical details
Endpoint
POSThttps://x402.blocknotify.com/v1/resolve-tokenWhen to prefer
Use this endpoint when an agent needs to safely interpret token amounts in EVM transactions and must know the token's decimal precision, or when you have a raw contract address and need to display a human-readable token name and symbol. Prefer this over manual RPC calls when you want a cached, normalized, cost-effective lookup without spinning up your own Web3 infrastructure.
Side effects
- Invalid or non-ERC-20 contract address returns an error indicating the address is not a valid token contract
- Unsupported EVM chain returns a chain-not-supported error
- Malformed contract address (wrong checksum or length) returns a validation error
- Contract exists but does not implement ERC-20 interface returns metadata resolution failure
- Network timeout or RPC unavailability may return a transient 5xx error
Input
{
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"network": "ethereum"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"ok": true,
"token": {
"name": "USDC",
"chain": "ethereum",
"source": "blocknotify",
"symbol": "USDC",
"address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
"decimals": 6
}
}Tags
x402
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