unclecode/crawl4ai

GitHub
https://github.com/unclecode/crawl4ai

Official Crawl4AI Cloud: a hosted web scraping, extraction, and search API for AI agents. Free API key, 1,000 credits a month, no card. Fully open source: this repo is the Apache-2.0 crawler that powers it, and you can self-host it.

Stars:
86.9k
Language:
Python
Default branch:
main
Last scored:
Overall

At a glance

Rank
#210 of 401
#40 of 56 Python repos
Checks passed
8 of 17
Full list below
Best set up for
Claude Code
Score 72.4
Needs most work for
Cursor
Biggest fix: Cursor rules (.cursor/rules) (+11.5 pts)

What it has

What it's missing

What to fix first

Pick an AI agent

Showing fixes for Claude Code

  1. 1
    AGENTS.md / CLAUDE.md
    Add an AGENTS.md covering project goals, layout, setup commands, and conventions. Aim for 800+ chars of real guidance (not boilerplate).
    +13.2 pts
  2. 2
    Type configuration
    Add a type config (tsconfig.json for JS/TS, mypy.ini or pyrightconfig.json for Python). Rust/Go/JVM/Scala/Swift/C#/OCaml/Haskell/Zig are typed by default.
    +7.9 pts
  3. 3
    Pre-commit / git hooks
    Set up pre-commit (.pre-commit-config.yaml), husky, or lefthook to run format+lint on every commit.
    +5.3 pts

Score for each AI agent

Each agent weighs the checks by its own docs. Under each score are its top three. How each agent is scored →

Claude Code
#203 of 401
72.4
  • ✗AGENTS.md / CLAUDE.md
  • ✓Test suite
  • ✓Reproducible dev env
Devin
#171 of 401
71.2
  • ✓Reproducible dev env
  • ✓Dependency manifest
  • ✓Test suite
Aider
#158 of 401
69.3
  • ✗.aider.conf.yml
  • ✓Linter / formatter config
  • ✓Test suite
OpenHands
#152 of 401
68.6
  • ✓CI configuration
  • ✓Dependency manifest
  • ✓Reproducible dev env
Codex
#227 of 401
68.4
  • ✗AGENTS.md / CLAUDE.md
  • ✓README
  • ✓Test suite
Kimi Code CLI
#227 of 401
66.9
  • ✗AGENTS.md / CLAUDE.md
  • ✓Test suite
  • ✓Dependency manifest
Pi
#226 of 401
66.7
  • ✗AGENTS.md / CLAUDE.md
  • ✓Test suite
  • ✓Linter / formatter config
Gemini CLI
#231 of 401
62.0
  • ✗GEMINI.md
  • ✓README
  • ✓Test suite
Cursor
#265 of 401
58.9
  • ✗Cursor rules (.cursor/rules)
  • ✓README
  • ✗Type configuration

Does unclecode/crawl4ai have agent instructions?

An AGENTS.md (or CLAUDE.md) at the root tells AI coding agents how to build, test and work in the repo. A few agents also read a file of their own.

AGENTS.md / CLAUDE.md
None at the root (no AGENTS.md, CLAUDE.md, AGENT.md, .claude/CLAUDE.md or .claude/AGENTS.md)
Agent-specific files
None: no GEMINI.md, .cursor/rules, .openhands/setup.sh, .aider.conf.yml or .agents/skills
Repos that have one
29 of 56 Python repos · 221 of 401 repos on the leaderboard · See examples →
Get a starter AGENTS.md

From the files the checks found. Fill in the commands, then commit it at the root.

# AGENTS.md

Guidance for AI coding agents working in unclecode/crawl4ai. Official Crawl4AI Cloud: a hosted web scraping, extraction, and search API for AI agents. Written mainly in Python.

## Where things are

- Dependencies are declared in `pyproject.toml`.
- Tests live in `tests`.
- Lint and format rules are configured in `setup.cfg`.
- CI is defined in `.github/workflows`; read it for the exact install, lint and test steps.
- A reproducible environment is defined in `Dockerfile`.
- Follow the conventions in `CONTRIBUTING.md`.

## Commands

<!-- Fill in the exact commands CI runs. -->
- Install: TODO
- Test: TODO
- Lint: TODO

All 17 checks · 8 passed

No .agents/skills/<name>/SKILL.md
No agent instructions file found
.aider.conf.yml· 0% pass
No .aider.conf.yml at repo root
CI configuration· 100% pass
5 GitHub Actions workflows
CONTRIBUTING guide· 100% pass
Guide present
No .cursor/rules/*.mdc or .cursorrules
Manifest present
2 env artifacts (Dockerfile, docker-compose.yml)
GEMINI.md· 0% pass
No GEMINI.md at repo root
License file· 100% pass
License present
Config detected
No .openhands/setup.sh
No pre-commit / husky / lefthook found
README· 100% pass
README detailed (28,251 characters)
Manageable size· 80% pass
929 files
Test suite· 100% pass
Found /tests
No type config found

How unclecode/crawl4ai compares

vs leaderboard average
0.4 pts above
Average 66.8
vs Python average
3.8 pts below
Average 71.0
Stars among Python repos
#13 of 56

Missing here, and how many repos have it

  • Type configuration · passed by 68% of leaderboard repos, 57% of Python repos
  • Pre-commit / git hooks · passed by 29% of leaderboard repos, 71% of Python repos
  • Skills (.agents/skills) · passed by 17% of leaderboard repos, 20% of Python repos

Passes checks most repos miss

  • Reproducible dev env · only 22% of repos pass it

One fix for the most agents: AGENTS.md / CLAUDE.md would raise the score for all 9 agents, by up to 13.3 points.

Similar repos

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All Python repos →

Same topics, any language

Repos tagged with the same GitHub topics, most shared first.

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Agent friendly score for github/unclecode/crawl4ai
[![Agent Friendly](https://agentfriendlycode.com/api/badge/github/unclecode/crawl4ai.svg)](https://agentfriendlycode.com/repo/github/unclecode/crawl4ai)

Check the score on every pull request

A GitHub Action posts one comment per pull request with how the score changed and why.