# httpay.xyz Infura Ethereum API Gateway

> httpay.xyz Infura Ethereum API Gateway is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-08).

Proxies Ethereum JSON-RPC requests to Infura via a pay-per-call gateway, injecting the API key server-side

## Facts

- Endpoint: POST https://httpay.xyz/api/gateway/infura/%7B*path%7D/*
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-08
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/httpay-xyz-17ca693c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jyw5fs-xis5ibOmsos6yg

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-17ca693c -d '<json body>'
```

Example prompt: Can you query the Ethereum mainnet via Infura and get me the current block number using eth_blockNumber?

## When to prefer this

Choose this endpoint when you need to make Ethereum JSON-RPC calls without provisioning your own Infura API key, or when operating in an x402 pay-per-call context and want to avoid API key management overhead. Ideal for agents that need occasional Ethereum node access without a subscription.

## Known failure modes

- Invalid JSON-RPC method returns error response
- Malformed request body causes 400 or RPC error
- Payment not included or insufficient USDC triggers 402 Payment Required
- Infura upstream timeout or outage returns 502/503
- Unsupported Ethereum network in path returns routing error
- Rate limit exceeded on upstream Infura key

## How this service works

API Gateway: Infura Ethereum API (key in path)

## Output

Returns the standard Ethereum JSON-RPC response from Infura, including the result field with blockchain data such as block numbers, balances, transaction receipts, contract call results, or error details if the request fails.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/httpay-xyz-17ca693c/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)