# httpay.xyz API Gateway: Etherscan Blockchain Explorer

> httpay.xyz API Gateway: Etherscan Blockchain Explorer is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Proxies requests to the Etherscan blockchain explorer API via a pay-per-call x402 micropayment gateway

## Facts

- Endpoint: POST https://httpay.xyz/api/gateway/etherscan/%7B*path%7D
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/httpay-xyz-api-gateway-etherscan-blockchain-explorer-cce9230c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QQgHdGgr4mpyijYy3Orhs

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 httpay-xyz-api-gateway-etherscan-blockchain-explorer-cce9230c -d '<json body>'
```

Example prompt: Look up the ETH balance and recent transactions for the Ethereum address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 using Etherscan.

## When to prefer this

Use this endpoint when you need Ethereum blockchain data (balances, transactions, contract ABIs, token transfers, gas prices) and want to pay per-call without managing an Etherscan API key or subscription. Especially useful for agents that need occasional blockchain lookups without committing to a key-based plan.

## Known failure modes

- Invalid or malformed Ethereum address returns empty or error result
- Unsupported Etherscan API path returns 404 or gateway error
- Payment not processed results in 402 Payment Required response
- Etherscan rate limits exceeded returns error from upstream
- Invalid transaction hash returns null or error from Etherscan
- Network congestion may cause slow upstream response

## How this service works

API Gateway: Etherscan blockchain explorer API

## Output

Returns JSON data from the Etherscan API including account balances, transaction lists, block data, contract information, token transfers, gas estimates, or event logs depending on the specific Etherscan API module and action called via the path parameter.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/httpay-xyz-api-gateway-etherscan-blockchain-explorer-cce9230c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from httpay.xyz](https://www.zero.xyz/host/httpay.xyz/llms.txt)