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Crossref DOI Lookup — Titles, Venues, Dates & Citation Counts for Grok

io.github.kriton-dev/crossref-doi-metadata

Resolve DOI identifiers to Crossref titles, venues, dates and citation counts for reference checks.

client:Grok transport:streamable-http

Install Crossref DOI Lookup — Titles, Venues, Dates & Citation Counts in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "crossref-doi-metadata": {
      "type": "http",
      "url": "https://mcp.apify.com/?tools=hermeskd/crossref-doi-metadata"
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

Crossref DOI Lookup — Titles, Venues, Dates & Citation Counts in other clients