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Exa Web Search & Extract Toolkit

An Exa-powered skill for semantic web search and batch URL/PDF extraction, tuned for scientific and technical sources.

Web & APIIntermediate★ 33,030⑂ 3,248AI score 9/10Last updated: Aug 9, 2026

What it does

Wires the Exa search API into Claude Code with two capabilities:

  • Web search — hybrid keyword + semantic retrieval for topic research and current information. Use --category "research paper" and a scholarly --include-domains allowlist (arxiv.org, nature.com, pubmed.ncbi.nlm.nih.gov) to force academic results, following the documented two-pass strategy.
  • Web extract — pulls full content from specific pages, articles, and academic PDFs, with multiple URLs per call (better than built-in WebFetch for batch work).

It also sets citation rules: include authors and publication year, and prefer DOI links when available.

Who it's for

  • Researchers and grad students who need peer-reviewed, citable evidence
  • Engineers and analysts writing technical surveys or landscape reports
  • Anyone who regularly reads and summarizes many URLs at once

Examples

  1. "Find recent work on reducing CRISPR off-target effects" → two-pass academic search with domain filtering
  2. "Read these three arXiv PDFs and compare their methods" → batch extraction plus a comparison table
  3. "Survey 2025 LLM inference cost trends" → general web search with sourced, linked summary

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/K-Dense-AI/scientific-agent-skills/HEAD/skills/exa-search/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/exa-search folder from the GitHub repo K-Dense-AI/scientific-agent-skills into my ~/.claude/skills/exa-search/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/K-Dense-AI/scientific-agent-skills.git /tmp/sas && mkdir -p ~/.claude/skills && cp -r /tmp/sas/skills/exa-search ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Create an Exa account and grab an API key at dashboard.exa.ai/api-keys.
  2. Clone the repo: git clone https://github.com/K-Dense-AI/scientific-agent-skills.git
  3. Copy the skill into place: mkdir -p ~/.claude/skills && cp -r scientific-agent-skills/skills/exa-search ~/.claude/skills/
  4. Install uv if you don't have it: curl -LsSf https://astral.sh/uv/install.sh | sh
  5. Export the key: export EXA_API_KEY="your-key" (add it to ~/.zshrc to persist).
  6. Optionally keep EXA_API_KEY=... in a project .env file and install the CLI helper: uv pip install "python-dotenv[cli]".
  7. Restart Claude Code and test with: "Use Exa to find research papers on ...".
View source on GitHub ↗License: MIT