serp.fast

Rust page-to-markdown API with raw-HTTP-first browser-fallback engine

Nathan Kessler
By Nathan KesslerUpdated

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Webclaw website

What is Webclaw?

Rust-based web extraction API for LLMs – converts pages to clean markdown via TLS-fingerprinted HTTP requests, escalating to a headless browser only when a page needs JavaScript, with drop-in Firecrawl v2 compatibility.

Our verdict

A Rust-based Firecrawl alternative positioning on raw speed – TLS fingerprint impersonation extracts static pages without spinning up a headless browser, escalating to browser rendering only when a page needs JavaScript. Drop-in Firecrawl v2 API compatibility lowers the switching cost. Open source (AGPL-3.0) with CLI, REST API, and a 12-tool MCP server that works with Claude, Cursor, and Windsurf. At ~1,800 GitHub stars and v0.6.x, it's early-stage. The performance claims are compelling but the ecosystem and community are still nascent. Worth evaluating if you need Firecrawl-style output with lower latency and self-hosting flexibility.

Categories:

Web scraping APIs abstract away the hardest parts of web data collection: JavaScript rendering, anti-bot detection, proxy rotation, and data parsing. Instead of building and maintaining your own scraping infrastructure, you send a URL and receive clean, structured data back. For AI applications, many of these APIs now return LLM-ready markdown or structured JSON.

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Turns any website into LLM-ready markdown via a single API

Freemium155K+Web Crawl & Data Extraction APIs

Handles proxy rotation and JS rendering behind one scraping API

FreemiumMar 2026Web Crawl & Data Extraction APIs

Open-source crawler shaped for RAG, among the most-starred on GitHub

Free68K+Open Source Frameworks

How Webclaw compares

Firecrawl

Firecrawl is the category leader with 1.25M+ developers and a proven ecosystem – Webclaw explicitly targets it with compatible API endpoints.

ScraperAPI

ScraperAPI is more mature with broader site coverage if you need reliability over raw speed.

Frequently asked questions

How much does Webclaw cost?

Webclaw uses a freemium model. The hosted API at webclaw.io has paid plans alongside a free entry point, and because the engine is open source under AGPL-3.0 you can self-host it on your own hardware and skip the hosted pricing entirely. Exact tier prices are not listed here, so check the pricing section on webclaw.io for current numbers before you budget.

Is Webclaw open source?

Yes. Webclaw is open source under the AGPL-3.0 license. The CLI, REST API, extraction engine, and a 12-tool MCP server all live in the public repository. The AGPL copyleft terms require that network-deployed modifications be shared back, which matters if you plan to build Webclaw into a hosted product of your own. The maintainers also run a managed hosted API at webclaw.io for teams that prefer not to operate it themselves.

Can Webclaw be self-hosted?

Yes. Webclaw is built in Rust and can run the extraction engine and MCP server on your own infrastructure. Self-hosting keeps scraped data in your environment and avoids the limits of the hosted plans. Keep the AGPL-3.0 obligations in mind if you expose a self-hosted instance over a network as part of a service you offer to others.

Does Webclaw render JavaScript?

Yes, when a page needs it. Webclaw fetches over HTTP with TLS fingerprint impersonation first, which keeps static pages lightweight and fast, and escalates to a headless browser only for JavaScript-heavy sites like SPAs built with React or Next.js. That adaptive model aims to deliver browser rendering where it matters without paying the overhead on every request.

How does Webclaw compare to Firecrawl?

Webclaw positions itself as a faster, Rust-based Firecrawl alternative with drop-in v2 API compatibility, so you can swap the base URL and keep your existing SDK. The main difference is rendering strategy: Webclaw fetches over raw HTTP first and only spins up a browser when a page needs it, while Firecrawl renders through a headless browser by default. Firecrawl is also more mature, with a larger community. Pick Webclaw for lower latency and self-hosting, Firecrawl for a settled ecosystem.

What is Webclaw best used for?

Webclaw fits teams feeding LLMs or RAG pipelines that need clean markdown or structured output with low latency. The 12-tool MCP server connects to agent clients like Claude, Cursor, and Windsurf, and Firecrawl v2 compatibility makes it easy to test against an existing setup. At around 1,800 GitHub stars and v0.6.x it is early-stage, so treat it as worth evaluating for speed-sensitive or self-hosted extraction rather than a settled production default.

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