# HTTPay Chain Compare: Base vs Ethereum

> HTTPay Chain Compare: Base vs Ethereum is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Compares two blockchains (Base and Ethereum) side-by-side, returning key metrics and differences between them

## Facts

- Endpoint: POST https://httpay.xyz/api/chain-compare/base/ethereum
- Price: $0.02/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-0c7fe6fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BGWD6GVuFgYz5FHDp5Chk

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-0c7fe6fd -d '<json body>'
```

Example prompt: Can you compare Base and Ethereum for me — show me the key differences in fees, speed, and overall capabilities between the two blockchains?

## When to prefer this

Use this endpoint when an agent or user needs a quick, structured side-by-side comparison of Base and Ethereum — ideal for onboarding new users to Web3, helping developers choose a chain, or providing chain selection advice in a financial or DeFi context.

## Known failure modes

- Payment required (402) if no valid x402 or MPP payment header is provided
- Invalid chain names return an error
- Demo mode rate-limited to 10 calls per IP per hour

## How this service works

Compare two blockchains

## Output

A structured comparison of Base and Ethereum blockchains, including metrics such as transaction fees, throughput, finality, ecosystem size, and notable feature differences between the two chains.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/httpay-xyz-0c7fe6fd/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)