By capability · Web crawler API

Web crawler API that turns whole sites into clean data

A single fetch is easy. Crawling an entire site, following links, rendering JavaScript, deduping and staying polite, is the hard part most teams underestimate. ClawEngine is a managed web crawler API: give it a starting URL and crawl rules, and it walks the site, renders each page and returns clean markdown or structured JSON, page by page.

You get the output, not the operations. There is no proxy rotation to manage, no headless browser fleet to scale, and no queue to babysit. ClawEngine crawls public and permitted pages only, reads and respects robots.txt and Terms of Service, and honors crawl-delay, so you cover a whole site responsibly and at scale.

or try it below ↓

Clean markdown & JSON · JavaScript rendered · robots.txt respected

Live Extraction

Endpoint · POST /v1/extract

GET

try:

Hit Extract to turn this page into clean, LLM-ready data.

robots.txt respected · public data only

Markdown · JSON · structured fields, from one API call. Crawling, rendering and extracting ...

CRAWL RENDER JS EXTRACT MARKDOWN JSON

Any URL in LLM-ready data out

robots.txt respected public data only

Why it works

What you get with web crawler api

Whole-site crawling

Give it a seed URL and crawl rules, and ClawEngine follows links across the site, rendering and extracting each page so you get full coverage, not one fetch.

Managed scale, zero ops

Concurrency, retries and rendering are handled for you, so a large crawl is an API call rather than a fleet of browsers and proxies to run.

Polite and permitted

The crawler reads robots.txt, honors crawl-delay and stays on public, permitted pages, so coverage never comes at the cost of compliance.

What it handles

Any URL in, clean structured data out

Point ClawEngine at a public page and it crawls, renders the JavaScript and extracts clean markdown or typed JSON in one call. Define a schema for structured fields, and respect robots.txt and Terms of Service by default.

Crawls entire sites from a seed URL
Follows links and dedupes pages automatically
Renders JavaScript on every page
Returns clean markdown or JSON per page
Handles concurrency, retries and scale for you
Reads robots.txt and honors crawl-delay

POST /v1/extract extraction result

200 · JSON

{
  "url": "https://example.com/products/atlas",
  "title": "Atlas Field Notebook",
  "markdown": "# Atlas Field Notebook\n\nDurable...",
  "data": {
    "name": "Atlas Field Notebook",
    "price": 24.00,
    "currency": "USD",
    "rating": 4.7
  },
  "links": [ "/products", "/cart" ],
  "metadata": { "rendered": true }
}

JS rendered · boilerplate stripped ✓ robots.txt respected

Why ClawEngine

One API that crawls, renders and extracts

Not a raw HTML dump, not a headless browser fleet to run, and not a brittle parser to maintain. One call crawls a public page, renders its JavaScript and returns clean markdown or typed JSON, built for RAG pipelines and AI agents.

LLM-ready output

Clean markdown or typed JSON with the boilerplate stripped, so the data drops straight into a vector store, a prompt or an agent without a cleanup step.

JavaScript rendered

Each page loads in a real browser environment before extraction, so single-page apps and client-rendered content come back complete, not as an empty shell.

Compliance-first

ClawEngine works on public, permitted data only. It respects robots.txt and site Terms of Service and honors crawl-delay, so responsible scraping is the default.

Good questions

Questions about web crawler api

A scrape pulls one URL. The crawler API starts from a seed URL, follows links across the site within the rules you set, and returns clean data for every page it visits, so you get whole-site coverage in one managed job instead of orchestrating thousands of fetches yourself.

No. ClawEngine reads robots.txt, honors crawl-delay and paces requests, and it only crawls public, permitted pages. The goal is thorough, polite coverage of sites you have the right to crawl, never aggressive or disallowed access.

Read every web scraping question

Explore more

More ways to turn the web into data with ClawEngine

See every use case See pricing Back to the web scraping API

Stop wrangling raw HTML. Get LLM-ready data.

Point ClawEngine at a public page and one call crawls, renders the JavaScript and extracts clean markdown or typed JSON, ready for your RAG pipeline or AI agent. Public, permitted data only.

See pricing

Crawl · render JS · extract markdown & JSON · robots.txt respected, public data only