oassis — web scraping, crawling and browser control API for AI agents

Scrape any page or document to markdown, map and crawl whole sites, and drive a real browser. Pay per call with a wallet: no API key, no signup, no monthly plan.

oassis.dev · MCP: https://api.oassis.dev/mcp · OpenAPI · llms.txt

Try it without an account

curl -X POST https://api.oassis.dev/web/v1/scrape \
  -H 'content-type: application/json' \
  -d '{"url":"https://example.com","formats":["markdown","controls"]}'

That answers 402 with the exact price of that call, in the PAYMENT-REQUIRED header. Pay it with a wallet (x402, USDC on Base) and repeat the request — or send Authorization: Bearer oas_… and it comes out of a prepaid balance.

Every route answers its own GET, free, with the fields it expects. No manual needed:

curl https://api.oassis.dev/web/v1/scrape

Related MCP server: pagewatch

What it does that a scraper usually does not

• A map of the controls. Ask for controls and you get every link, button and field with its role, its readable name, its selector and where it sits on screen — the map an agent needs to decide what to click. In one render.

• Browser sessions that stay open. Look, click, look again, without reloading and without losing state. The refs from controls still work on the next call.

• Documents by url. A PDF, Word, Excel or CSV comes back as markdown with no browser involved.

• Every output in one call. markdown, html, links, controls, accessibility, elements, screenshot, pdf, or AI-extracted json. A format that fails does not void the rest.

Endpoints

Served on two hosts: api.oassis.dev (/web/v1/…) and web.oassis.dev (/v1/…).

Prices

Quoted before the work happens, charged after, and refunded when the work does not happen. A request that cannot be served is never charged for. Balance does not expire and there is no monthly fee.

MCP

Streamable HTTP at https://api.oassis.dev/mcp, listed in the official registry as dev.oassis/scraper-crawler.

initialize and tools/list are free. A keyless client gets a small allowance — 10 page reads a day, one browser session and a few searches — so the first call works before any account exists.

Running it

npm install
npm run check      # typecheck, dead-export scan, tests
npm run deploy     # Cloudflare Workers

Needs a D1 database, a KV namespace and the Browser Run binding; see wrangler.jsonc. Payments need X402_PAY_TO and, for settlement on Base mainnet, CDP keys.

License

Elastic License 2.0. Read it, run it, change it, host it for yourself — you may not offer it to third parties as a hosted or managed service. Source-available, not open source, and the difference is that one sentence.