# Blockchain.com Explorer Gateway — Ethereum Address Token Lookup

> Blockchain.com Explorer Gateway — Ethereum Address Token Lookup is a paid API for AI agents from api.blockchain.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Returns the token holdings and balances for a given Ethereum address via blockchain.com's explorer gateway

## Facts

- Endpoint: POST https://api.blockchain.com/explorer-gateway-kt/x402/eth/address/tokens?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-com-explorer-gateway-ethereum-address-token-lookup-0fc9940d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q-O_frszpOjmhKweH2Ppj

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability blockchain-com-explorer-gateway-ethereum-address-token-lookup-0fc9940d -d '<json body>'
```

Example prompt: What ERC-20 tokens does the Ethereum address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e hold on the ETH network? Pull the full token list from blockchain.com's explorer.

## When to prefer this

Choose this endpoint when you need on-chain token holdings specifically for Ethereum addresses and want a single-call lookup via a reputable blockchain explorer (blockchain.com) rather than running your own node query or using a generic multi-chain API that may have lower data freshness. Particularly useful when building portfolio dashboards, wallet auditing tools, or compliance checks that need ERC-20 token enumeration for a given address.

## Known failure modes

- Invalid or malformed Ethereum address returns an error or empty result
- Unsupported network value causes a bad request response
- Address with no token holdings returns an empty token array
- Rate limiting or payment failure (x402) blocks the request
- Newly minted or very obscure tokens may not appear if not indexed

## How this service works

Blockchain explorer gateway — Solana, Bitcoin, Bitcoin Cash, Ethereum

## Output

A JSON response containing the list of tokens held by the specified Ethereum address, including token names, contract addresses, balances, and potentially decimal/symbol metadata for each ERC-20 token in the wallet.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string"
  },
  "network": {
   "type": "string",
   "example": "ETH"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "format": "application/json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchain-com-explorer-gateway-ethereum-address-token-lookup-0fc9940d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.blockchain.com](https://www.zero.xyz/host/api.blockchain.com/llms.txt)