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Openalex search

An MCP tool from the Public Knowledge server, hosted on mcp.hjlabs.in.

Search OpenAlex, an open index of 250M+ scholarly works: title, authors with institutions, venue, year, citations, open-access PDF when there is one, concepts, and the abstract. Filters: year range, open access only. Sort by relevance, citations or date.

Name on the gateway: knowledge__openalex_search · read-only.

Parameters

NameTypeDescription
query requiredstringSearch text (titles, abstracts, full text).
from_yearintegerEarliest publication year.
to_yearintegerLatest publication year.
open_accessbooleanOnly works with a free full text.
sortrelevance | cited_by_count | publication_dateOrder. Default relevance.
limitintegerResults (default 10, max 50).

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "knowledge__openalex_search",
  "arguments": {
    "query": "…"
  }
}

Or connect the Public Knowledge server directly, which lists 47 tools including this one:

Run in your terminal
claude mcp add --transport http hj-knowledge https://mcp.hjlabs.in/mcp/knowledge \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the openalex search tool with query set to ….

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