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Blockchain.info Explorer Gateway — Ethereum Address Token Lookup
x402
Blockchain.info Explorer Gateway — Ethereum Address Token Lookup is a paid API for AI agents from api.blockchain.info, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-29).
Returns the list of tokens held by a given Ethereum address on the specified network
Price / call$0.001
Success—
StatusUnknown
How this service works
Blockchain explorer gateway — Solana, Bitcoin, Bitcoin Cash, Ethereum
Output
A JSON response listing the tokens associated with the given Ethereum address on the specified network, typically including token names, symbols, contract addresses, and balances.
Example use cases
Portfolio snapshot for a wallet
“Can you pull up all the tokens held by the Ethereum wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on ETH so I can see what assets are in it?”
Verify token receipt after transfer
“I just sent some USDC to 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B on Ethereum — can you check what tokens that address currently has to confirm it arrived?”
Due diligence on a wallet before payment
“Before I send funds, can you look up the token holdings on Ethereum for the address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e so I can see what kind of wallet it is?”
Technical details
Endpoint
POSThttps://api.blockchain.info/explorer-gateway-kt/x402/eth/address/tokens?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, pay-per-call lookup of Ethereum token holdings for a specific address without managing your own blockchain node or indexer. It is ideal for agent workflows that need real-time token portfolio data for arbitrary Ethereum addresses. Prefer this over full blockchain node RPC calls when you want a simple REST API with no infrastructure overhead, and over free explorers when you need programmatic access at scale.
Side effects
- Invalid or malformed Ethereum address returns an error or empty result
- Unsupported network value causes a bad request or empty token list
- Address with no token holdings returns an empty array
- Rate limiting or payment failure returns a 402 or 429 error
- Network connectivity issues to the blockchain node return a timeout or 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | |
| network | string |
Output
Schema · Response
{
"type": "json",
"format": "application/json"
}Tags
x402
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