USP

Access 250M+ academic papers directly in Claude Code. Free, open OpenAlex API requires no keys. Search by keyword, sort by relevance/cites/date, paginate, or get full paper details by DOI/ID. Simple `curl` and `jq` requirements.

Use cases

• 01Quickly find relevant academic papers for a research topic.
• 02Verify scientific claims or facts with cited literature.
• 03Explore related works and citation graphs for a given paper.
• 04Retrieve full abstracts and details for specific DOIs or OpenAlex IDs.
• 05Support AI agents in literature reviews and knowledge synthesis.

Detected files (2)

• skills/paper-search/SKILL.mdskill
  Show content (1762 bytes)

  ---
  name: paper-search
  description: Search for academic papers by keyword, or look up a specific paper by DOI or OpenAlex ID. Powered by OpenAlex (250M+ works, free, no API key).
  ---
  
  Search for academic papers and get details including title, authors, citation count, DOI, abstract, and open access links.
  
  Steps:
  1. Find the scripts directory: `find ~/.claude -name "search.sh" -path "*/paper-search/*" 2>/dev/null | sort -V | tail -1`
     - This finds the script whether installed via plugin or manual setup
     - The `paper.sh` script is in the same directory
  2. To search for papers by keyword:
     ```
     <scripts-dir>/search.sh "your search query" [limit] [sort] [page]
     ```
     - `limit`: number of results per page (default: 10, max: 200)
     - `sort`: `relevance` (default), `cites`, or `date`
     - `page`: page number for pagination (default: 1)
  3. To look up a specific paper by DOI or OpenAlex ID:
     ```
     <scripts-dir>/paper.sh <DOI_URL or OpenAlex_ID>
     ```
     - Accepts full DOI URLs like `https://doi.org/10.3390/brainsci8020020`
     - Or OpenAlex IDs like `W2789811475`
     - Returns full details: authors, abstract, concepts, open access PDF link, related works
  
  Tips:
  - Use `relevance` sort (default) for topical searches. Use `cites` when you want landmark papers.
  - Be specific with queries — "bilingual cognitive advantages executive function" beats "bilingualism brain".
  - Use `paper.sh` to get the full abstract when search results show "Abstract: N/A".
  - The `related_works` IDs from `paper.sh` can be fed back into `paper.sh` to explore the citation graph.
  - When the user asks for scientific backing: search broadly first, pick the most relevant/cited papers, then use `paper.sh` for full details and cite as (Author, Year, Journal).
  

• .claude-plugin/marketplace.jsonmarketplace
  Show content (318 bytes)

  {
    "name": "paper-search",
    "owner": {
      "name": "YK Sugi"
    },
    "plugins": [
      {
        "name": "paper-search",
        "source": "./",
        "description": "Search academic papers via OpenAlex — find papers by keyword, look up details by DOI, with pagination and sorting",
        "version": "0.1.0"
      }
    ]
  }
  

README

claude plugin marketplace add ykdojo/paper-search
claude plugin install paper-search@paper-search

# Search for papers (sorted by relevance by default)
scripts/search.sh "mindfulness meditation stress reduction" 10

# Sort by citation count
scripts/search.sh "mindfulness meditation stress reduction" 10 cites

# Sort by publication date
scripts/search.sh "mindfulness meditation stress reduction" 10 date

# Page 2 of results
scripts/search.sh "mindfulness meditation stress reduction" 10 relevance 2

# Get 25 results per page
scripts/search.sh "mindfulness meditation stress reduction" 25

# Look up a specific paper by DOI
scripts/paper.sh "https://doi.org/10.1073/pnas.0407162101"

# Look up by OpenAlex ID
scripts/paper.sh W2097529540