Agent skill

Firecrawl Scraper

by lamm-mit in lamm-mit/scienceclaw

Web scraping of JavaScript-rendered scientific websites using Firecrawl API

Apache-2.0Auto-check passedData & Analytics

Install Firecrawl Scraper

skills CLI
$ npx skills add lamm-mit/scienceclaw --skill firecrawl-scraper -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install lamm-mit/scienceclaw firecrawl-scraper --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/lamm-mit/scienceclaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/firecrawl-scraper .claude/skills/firecrawl-scraper && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
firecrawl-scraper
GitHub stars
244
Token cost
~425 tokens
SKILL.md length
80 words
Files
3 (incl. scripts)
Skills in repo
85
Repo updated
First seen
Licence
Apache-2.0

At a glance

Web scraping of JavaScript-rendered scientific websites using Firecrawl API

  • Tasks that involve Web scraping
  • SKILL.md covers Overview, Usage, Output Format and Setup
  • Runs Python scripts from its folder; calls python3; reaches uniprot.org and rcsb.org; needs FIRECRAWL_API_KEY

What it does

Firecrawl Scraper is an agent skill from lamm-mit/scienceclaw. Web scraping of JavaScript-rendered scientific websites using Firecrawl API

Its SKILL.md is about 430 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts (for example `scripts/firecrawl_scrape.py`).

It sits in Data & Analytics, covering Web scraping. It works with Firecrawl and JavaScript. The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Web scraping

Example prompts

  • “/firecrawl-scraper”

Requirements

  • Python 3
  • A credential in FIRECRAWL_API_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit ab9aba1. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 2 files in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python3

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • uniprot.org
    • rcsb.org
    • biorxiv.org

    Also links to:

    • firecrawl.dev

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • FIRECRAWL_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Firecrawl Scraper loads about 425 tokens when it runs. Until then it costs about 23 tokens; SKILL.md has 80 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~23
When it runs · the whole SKILL.md, loaded when a task matches
~425

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from lamm-mit/scienceclaw at commit ab9aba1, republished under its Apache-2.0 licence (© lamm-mit). 80 words, ~425 tokens.

Download SKILL.mdSave it as .claude/skills/firecrawl-scraper/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
firecrawl-scraper
description
Web scraping of JavaScript-rendered scientific websites using Firecrawl API

Overview

Web scraping using the Firecrawl API for JavaScript-rendered scientific websites, database pages, and literature sources. Returns clean Markdown content optimized for LLM processing. Handles dynamic content, authentication flows, and complex single-page applications that static scrapers cannot access.

Particularly useful for scraping scientific databases with JavaScript-heavy frontends, preprint servers, supplementary data pages, and research institution websites.

Usage

bash
# Scrape a scientific database page as markdown
python3 skills/firecrawl-scraper/scripts/firecrawl_scrape.py --url "https://www.uniprot.org/uniprotkb/P53_HUMAN"

# Scrape and return raw HTML
python3 skills/firecrawl-scraper/scripts/firecrawl_scrape.py --url "https://www.rcsb.org/structure/1TUP" --format html

# Use explicit API key
python3 skills/firecrawl-scraper/scripts/firecrawl_scrape.py \
  --url "https://www.biorxiv.org/content/10.1101/2024.01.01.000001" \
  --api-key fc-yourkey123 \
  --format markdown

Output Format

json
{
  "url": "https://www.uniprot.org/uniprotkb/P53_HUMAN",
  "content": "# Cellular tumor antigen p53\n\n**Organism:** Homo sapiens...",
  "format": "markdown",
  "title": "P53_HUMAN - Cellular tumor antigen p53",
  "links": [
    "https://www.uniprot.org/uniprotkb/P04637",
    "https://www.rcsb.org/structure/2OCJ"
  ]
}

Setup

Set your Firecrawl API key as an environment variable:

bash
export FIRECRAWL_API_KEY=fc-yourkey123

Or pass it directly via --api-key. Get a key at https://firecrawl.dev.

© lamm-mit, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (scripts) in skills/firecrawl-scraper of lamm-mit/scienceclaw.

  • SKILL.md
  • scripts/__pycache__/firecrawl_scrape.cpython-313.pyc
  • scripts/firecrawl_scrape.py

Open the folder on GitHubat commit ab9aba1

Compare with similar skills

Firecrawl Scraper next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Firecrawl Scraper compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Firecrawl Scraper this skilllamm-mit/scienceclaw244—~425Automated safety check: PassApache-2.0
Firecrawl Scraperynulihao/AgentSkillOS6171 repos~4.1kAutomated safety check: NotesMIT
Firecrawl Scrapersecondsky/claude-skills2271 repos~1.9kAutomated safety check: NotesMIT
Firecrawlaiskillstore/marketplace4301 repos~2.6kAutomated safety check: PassNone
Web Scrapingplatonai/Browser41.2k—~1.1kAutomated safety check: PassApache-2.0
Selenium Opinion Crawler123321kk/opinion-agent-ultimate107—~631Automated safety check: PassNone

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Questions about Firecrawl Scraper

What does Firecrawl Scraper do?

Web scraping of JavaScript-rendered scientific websites using Firecrawl API. Firecrawl Scraper is an agent skill from lamm-mit/scienceclaw.

When should I use Firecrawl Scraper?

Firecrawl Scraper fits situations like: tasks that involve Web scraping.

How do I install Firecrawl Scraper in Claude Code?

Run `npx skills add lamm-mit/scienceclaw --skill firecrawl-scraper -a claude-code`. Or copy the skill folder (skills/firecrawl-scraper in lamm-mit/scienceclaw) into .claude/skills/firecrawl-scraper in your project. Claude Code loads it when a task matches its description.

How do I install Firecrawl Scraper in Codex?

Run `npx skills add lamm-mit/scienceclaw --skill firecrawl-scraper -a codex`. Or copy the skill folder (skills/firecrawl-scraper in lamm-mit/scienceclaw) into .agents/skills/firecrawl-scraper in your project. Codex loads it when a task matches its description.

Can I use Firecrawl Scraper in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add lamm-mit/scienceclaw --skill firecrawl-scraper -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/firecrawl-scraper, .gemini/skills/firecrawl-scraper, .github/skills/firecrawl-scraper and .opencode/skills/firecrawl-scraper in your project.

What does Firecrawl Scraper need to run?

Going by SKILL.md and its folder, Firecrawl Scraper needs Python for the scripts in its folder, the command-line tools its instructions call (python3) and credentials named FIRECRAWL_API_KEY. Our summary lists: Python 3; A credential in FIRECRAWL_API_KEY.

Does Firecrawl Scraper access the network?

SKILL.md names 4 domains. In commands or code: uniprot.org, rcsb.org and biorxiv.org; the agent is likely to contact these when it follows the instructions. As links in the text: firecrawl.dev. This is read from the text; nothing was executed.

Is Firecrawl Scraper safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Firecrawl Scraper use?

Firecrawl Scraper is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Firecrawl Scraper use?

About 425 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Firecrawl Scraper?

Skills that share tags, products or a category with Firecrawl Scraper: Firecrawl Scraper (ynulihao/AgentSkillOS, 617 stars), Firecrawl Scraper (secondsky/claude-skills, 227 stars), Firecrawl (aiskillstore/marketplace, 430 stars) and Web Scraping (platonai/Browser4, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Firecrawl Scraper?

lamm-mit (a GitHub user) maintains it in lamm-mit/scienceclaw, which has 244 GitHub stars. The repository holds 85 skills in this directory. The repository was last updated on August 21, 2026.

Source: lamm-mit/scienceclaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.