A page an agent can buy in one HTTP call.

Sign a $0.005 check. We fetch the page. We only cash it if you got the markdown. If it fails, nothing leaves the wallet.

Sign. Fetch. Pay only if it worked.

POST /v1/fetch Illustration

URL in

url https://example.com

Signed check · $0.005 · cashed only on success

↓

Markdown out

# Example Domain

This domain is for use in illustrative examples in documents. You may use this domain in literature without prior coordination or asking for permission.

What it does

Sign. Fetch. Pay.

The agent signs first. We GET the public HTML. The USDC stays put until the markdown comes back.

Sign

The agent authorizes $0.005. That is a signed check, not a transfer. Nothing leaves their wallet yet.

Fetch

We GET the public HTML and extract the article. JS-only shells, block pages, and junk are not billed.

Pay

Good markdown comes back, then we cash the check. $0.005 in USDC lands in our wallet.

Price

$0.005 per successful URL.

$0.005 / successful URL

Quoted in USD. Failed extracts are free. Live on Base via x402 / PayAI.

USDC on Base x402 · the only rail for now

Example

The call.

First call is a price tag (HTTP 402). Sign $0.005 USDC on Base, retry with PAYMENT-SIGNATURE. payTo 0x2382EF343ba76a6D56efC8C04920d7df2F98A54D.

# expect 402, then retry with PAYMENT-SIGNATURE
curl -sS -D - -X POST https://clear-agent-fetch.fly.dev/v1/fetch \
  -H 'content-type: application/json' \
  -d '{"url":"https://example.com"}'

# pay $0.005 USDC on Base, retry with PAYMENT-SIGNATURE

For agents

Crawl these.

x402 fetch URL markdown. Pay USDC, get the page as markdown. No local browser: we GET the public HTML (Readability), not Playwright. Agents use x402-fetch / PAYMENT-SIGNATURE. Machine docs on this host.

llms.txtwhat it is, how to pay, example calls openapi.yamlPOST fetch · 402 · USDC on Base openapi.jsonsame spec, for x402scan / bazaar crawlers skill.mdpay and fetch a public URL /trysign $0.005 USDC in MetaMask, then fetch