Agent Web Access 讓 AI 智能體以每次 $0.001 擷取網頁 Markdown

Most LLM agents hit the same wall the first time they need a real web page: a plain HTTP GET returns an empty shell, a cookie wall, or 300 KB of navigation markup. Running headless Chrome yourself fixes that, and then you own a browser fleet.

Agent Web Access is a pay-per-call alternative. Your agent sends a URL and gets back the rendered page as clean markdown. JavaScript runs in a real browser first, then navigation, ads and boilerplate are stripped. There is no account and no API key. Each call is paid in USDC on Base through the open x402 protocol.

Prices

The prices come from the service's own 402 reply, which any client can read for free.

Try it without paying

GET https://web.cyberwarex.com/sample returns one real paid answer, together with its on-chain settlement transaction, so you can see the output before you spend anything.

Python, about ten lines

# pip install "x402[evm,requests]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact import ExactEvmScheme

client = x402ClientSync()
client.register("eip155:8453", ExactEvmScheme(EthAccountSigner(Account.from_key(os.environ["PK"]))))
session = x402_requests(client)

r = session.get("https://web.cyberwarex.com/fetch",
                params={"url": "https://news.ycombinator.com", "format": "markdown"})
page = r.json()
print(page["status"], len(page["content"]), "chars")
print(page["content"][:300])

PK is the private key of a Base wallet holding a little USDC. A dollar covers a thousand page reads. The client gets the 402 invoice, signs the payment and retries the request on its own.

I ran this exact script before publishing: it returned status 200 and about 11 KB of markdown for the Hacker News front page, at a cost of $0.001.

From an MCP client

The same four tools are served over MCP at https://web.cyberwarex.com/mcp (streamable HTTP, no auth): web_fetch, web_extract, web_screenshot and web_pdf. An unpaid tools/call returns the x402 invoice as a tool error, and the client retries with the payment.

When to use it

• a page is a single-page app and plain GET returns nothing useful
• you need the text of a page, not its markup, to feed a model
• you want a screenshot or PDF of a page inside an agent run without running a browser

When not to

• the site offers an official API: use that
• you need to log in: this reads public pages only

Docs: https://cyberwarex.com/llms.txt · Service catalog: https://cyberwarex.com/.well-known/x402