How much does a URL to Markdown API cost?
One accepted read is 0.001 USDC on Base. No subscription. No API key. Failed reads cost nothing.
The short answer
One accepted read is 0.001 USDC on Base. A 10-credit pack is 0.005 USDC — 0.0005 USDC per read. No API key, no account, no subscription. Failed or blocked sources are not charged. Re-verified from the live PAYMENT-REQUIRED challenge on October 28, 2026: 0.001 USDC on Base (eip155:8453), exact scheme. The fresh header beats this page.
What the call actually buys
One job. Send one public web address. Get back clean Markdown your AI agent can read. Money moves only when the read is accepted. Canonical PAYMENT-RESPONSE settlement observations have been published since September 2, 2026. A 402 challenge is the price tag. It is not the receipt.
What it will not do
Use another tool if the page needs JavaScript, a login, clicks, or cookies. This reader does one public HTTPS page at a time. It does not crawl a whole site. The wrong job is how a good product gets a bad reputation.
What counts as proof you paid
People treat HTTP 402 as proof they paid. It is not. The 402 publishes the terms. The PAYMENT-RESPONSE header after settlement is the receipt. A directory badge that says payment-ready is not a paid call. Display prices are not the challenge. The buyer reads the fresh header, then decides.
How to try it free
The free preview needs no wallet, no key and no account: GET /api/web/preview on the API host runs a fixed public page through the production reader and returns real Markdown with charged: false. Agents then pay per call in USDC, with no account and no key. The onboarding doc is GET /api/web/skill.md.
When to use a different tool
Need JavaScript rendering or a whole-site crawl? That is a different job, and a different tool. We compared the options honestly: URL to Markdown vs Jina vs Firecrawl.
Where the job lives
This page is the short answer. The canonical offer page — pricing at a glance, the dated on-chain settlement proof table, the comparison matrix, and the live contract — is here: URL to Markdown API.
SCRIPTMASTERLABS URL to Markdown API → · Structured Web Extraction → · Web Research →