
CRW Web Scraper
io.github.usPublished by GitHub account usv0.36.0Updated Oct 25, 2026
Open-source web scraper for AI agents with scrape, crawl, and map tools
Overview
Open-source web scraper that gives an AI assistant tools to scrape, crawl, map, search and extract content from websites as markdown or structured JSON.
- What you can do
- Scrape a single URL into markdown, HTML, links, screenshots or schema-based JSON
- Crawl a bounded site and collect its pages
- Map a site to discover URLs without scraping every page
- Search the web and optionally scrape selected results
- Extract structured fields from one or many URLs
- When to use it
- Useful when an assistant needs to pull web page content into a clean, LLM-friendly format, gather pages across a site, or turn web pages into structured fields. It can run fully locally for data control or against a managed API for zero infrastructure.
- Requirements
- Runs as a local process (stdio) on macOS or Linux, Intel or ARM; the README also offers a container image and an npm-based MCP install. Local mode needs no account; the managed cloud option needs an API key supplied as CRW_API_KEY. Network access is required to reach target sites.
Installation
In SourceWeft
- Open CRW Web Scraper in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
fastCRW
Turn URLs into clean markdown or structured JSON with one engine for search, scrape, map, crawl, and extract.
Run it locally as a small Rust binary or use the managed API.
Get 1000 free credits → · Install · Docs
No credit card. Continue with GitHub.
[crates.io] [PyPI] [npm crw-mcp] [CI] [License] [GitHub Stars]
One-command install
Runs local and free, no account needed. To use the Cloud, paste your key into the same command and it installs the binary, connects the key, and registers the MCP server with the AI coding tools you already have:
Claude Code, Cursor, Codex, Gemini CLI, OpenCode and Windsurf are picked up
automatically when they are already set up; nothing else is touched, and your
key stays in ~/.config/crw/config.toml rather than being copied into each
tool. Add CRW_NO_AGENTS=1 to skip that step, or run crw setup on its own to
choose interactively.
1000 free credits, no credit card. Managed proxies, JS rendering and search, with nothing to run or keep up to date. Get my free key →
macOS and Linux, Intel and ARM. More install options →
What it does
Why fastCRW
On Firecrawl's own public 1,000-URL dataset, fastCRW recovered more truth than Crawl4AI and Firecrawl, matched the fastest median latency, and idled at ~14 MB RAM.
Methodology, full numbers, and how to reproduce it
On a different benchmark entirely, answer accuracy rather than scrape recall, fastCRW answers 90.0% of the 600 AA-Omniscience questions correctly. Every product listed on the Artificial Analysis Search Index sits below it.
The full 14-product comparison, the control run, and how to reproduce it
Choose how you use it
CLI
Python SDK
Using Cloud? Get an API key, then export it once:
Node.js
Local mode and more SDK examples → · REST API →
MCP for AI agents
Installs the CRW skill and MCP server in your detected AI tools. crw setup can
also do this step, so either path is enough.
Manual setup →
Choose where it runs
Capabilities and response shapes can differ by deployment:
/v1/capabilities · response shapes
Learn more
Contributing
The workspace requires Rust 1.85 or newer:
Contributors
crw is better because of these people. Thank you, all of you:
[us] [paoloantinori] [behramcelen] [rqi14] [santhreal] [AsheTheWings] [gjija] [adambenhassen] [atirna] [cdebled] [VIVAAN-DHAWAN] [alkaz-nodemaven] [mj520]
Engine and MCP server: AGPL-3.0. Python and TypeScript SDKs: MIT. Embedding license: [email protected].
Star History
[Star History Chart]Please respect website policies. Crawl and map follow robots.txt by default.
Source: README.md at commit 37be165
Tools
0Version history
2- v0.36.0LatestSep 19, 2026
- v0.35.1Sep 16, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts