crw

作者 us已验证

Fast, lightweight Firecrawl/Tavily alternative in Rust. Web scraper, crawler & search API with MCP server for AI agents. Drop-in Firecrawl-compatible API (/scrape, /crawl, /search). 2.3x faster than Tavily, 1.5x faster than Firecrawl in 1K-URL benchmarks. 6 MB RAM, single binary. Self-host or use managed cloud.

667
Stars
47
Forks
Rust
语言
2026/8/23
添加时间

⚠️ 第三方软件声明

本 Skill 为第三方开源软件,独立托管于 GitHub。SkillTip 仅为信息目录,不控制或维护底层仓库。所显示的安全检查为自动化且范围有限,安装前请自行审查源码。

阅读服务条款

安装

添加到你的 Claude Code skills 目录:

# Add to your Claude Code skills
git clone https://github.com/us/crw

快速入门

使用 crw 等 Skills 的指南。

安全报告

已验证

上次扫描:—

{
  "status": "PASSED",
  "issues": []
}

README.md

fastCRW

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

curl -fsSL https://fastcrw.com/install | sh

Then point it at the Cloud:

crw setup

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 →

The same command configures a fully local install if you would rather run it yourself. macOS and Linux, Intel and ARM. More install options →

What it does

OperationOutcome
ScrapeOne URL to markdown, HTML, links, screenshots, or schema JSON
CrawlFollow a bounded site crawl and collect its pages
MapDiscover URLs without scraping every page
SearchSearch the web and optionally scrape selected results
ExtractProduce structured fields from one or many URLs

See the full API →

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.

fastCRW compared with Crawl4AI and Firecrawl on truth-recall, unique recoveries, median latency, download size, and recall depth

Methodology, full numbers, and how to reproduce it

Choose how you use it

CLI

crw https://example.com            # scrape, works right after install
crw search "rust async runtime"    # search, after `crw setup`

Python SDK

Using Cloud? Get an API key, then export it once:

export CRW_API_KEY="crw_live_..."
pip install crw
from crw import CrwClient

client = CrwClient()
page = client.scrape("https://example.com", formats=["markdown"])

print(page["markdown"])
Node.js
npm install crw-sdk
import { CrwClient } from "crw-sdk";

const client = new CrwClient();

const page = await client.scrape("https://example.com", {
  formats: ["markdown"],
});

console.log(page.markdown);

Local mode and more SDK examples → · REST API →

MCP for AI agents

npx -y crw-mcp@latest install

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

Managed APILocal / self-hosted
Best forZero infrastructure and managed scalingData control, private networks, or custom infrastructure
StartCreate an API key, then crw setupInstall and run crw <URL>
OperationsManaged proxies, billing, and hosted capabilitiesYou choose renderers, search, auth, proxies, and capacity

Capabilities and response shapes can differ by deployment: /v1/capabilities · response shapes

Self-hosting guide →

Learn more

Contributing

The workspace requires Rust 1.85 or newer:

git clone https://github.com/us/crw
cd crw
make check-fast

Read the contributor guide →

Engine and MCP server: AGPL-3.0. Python and TypeScript SDKs: MIT. Embedding license: hello@fastcrw.com.

Star History

Star History Chart
Contributors

us santhreal AsheTheWings adambenhassen paoloantinori mj520

Please respect website policies. Crawl and map follow robots.txt by default.

常见问题

What is crw?

crw is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by us. Fast, lightweight Firecrawl/Tavily alternative in Rust. Web scraper, crawler & search API with MCP server for AI agents. Drop-in Firecrawl-compatible API (/scrape, /crawl, /search). 2.3x faster than Tavily, 1.5x faster than Firecrawl in 1K-URL benchmarks. 6 MB RAM, single binary. Self-host or use managed cloud. It has 667 GitHub stars.

Is crw safe to use?

Yes. crw passed SkillsLLM's automated security scan — a dependency vulnerability audit plus prompt-injection heuristics — with no high-severity issues. You can read the full report in the Security Report section on this page.

How do I install crw?

Clone the repository with "git clone https://github.com/us/crw" and add it to your Claude Code skills directory (see the Installation section above).

What programming language is crw written in?

crw is primarily written in Rust. It is open-source under us on GitHub, so you can review or fork the full source.

Are there alternatives to crw?

Yes. SkillsLLM lists many other AI Agents skills you can browse and compare side by side. Open the AI Agents category from the badge at the top of this page, or use the Related Skills and comparison links further down to weigh crw against similar tools.

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