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gate402 On-Chain Wallet & Token Intelligence
x402
gate402 On-Chain Wallet & Token Intelligence is a paid API for AI agents from gate402.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Returns native ETH + ERC-20 balances, EOA/contract classification, transaction count, and token metadata for any Base address, sourced from the public RPC.
Price / call$0.01
Success—
StatusUnknown
How this service works
On-chain wallet & token intelligence on Base: native + ERC-20 balances, EOA/contract detection, tx count, and token metadata. From public RPC.
Output
Returns a JSON object containing the address's native ETH balance, a list of ERC-20 token balances (including symbol, decimals, and raw/formatted amounts) for standard tokens plus any extras supplied, a boolean or type flag indicating EOA vs contract, the total transaction count, and token-level metadata sourced directly from the Base public RPC.
Example use cases
Portfolio snapshot for a Base wallet
“Pull the full on-chain snapshot for the wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base — native ETH balance, all ERC-20 token holdings, and the total number of transactions it's made.”
Contract vs EOA detection for security check
“I need to know whether 0x2626664c2603336E57B271c5C0b26F421741e481 on Base is a smart contract or a regular wallet — can you check its on-chain type along with its transaction count and any token balances?”
Token metadata lookup for a Base ERC-20
“Get me the token metadata — name, symbol, decimals — and current holder balance for the ERC-20 contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base, checking against the address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B.”
Technical details
Endpoint
POSThttps://gate402.app/v1/onchain?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive on-chain profile of a Base address in a single call — combining native balance, multi-token ERC-20 balances, EOA/contract classification, and transaction count without querying the RPC directly. It is ideal for wallet due diligence, agent-driven portfolio monitoring, or pre-trade address validation on Base, and is preferable to DEX price endpoints when you need raw wallet state rather than market data.
Side effects
- Invalid or malformed 0x address returns a validation error
- Non-Base address (e.g. Ethereum mainnet address not deployed on Base) may return zero balances without error
- Unknown or non-standard ERC-20 contract addresses in the tokens array may fail metadata lookup
- RPC congestion or downtime can cause timeouts or partial results
- Very new addresses with no history may return empty balances and zero tx count, which may look like an error but is valid
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tokens | array | Optional extra ERC-20 contract addresses to check balances for. |
| address | string | Base address (wallet or token contract), 0x-hex. |
Tags
x402
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