Research Paper & DOI Lookup (Crossref) MCP Server

by pcp183io.github.pcp183/paper-lookupv0.2.0

Verify a DOI or find papers via Crossref metadata. $0.005/call via x402.

remoteofficial registry

context tax

pending

security

pending

cold start

hosted

freshness

pending

Our reading of Research Paper & DOI Lookup (Crossref), from the data

Research Paper & DOI Lookup (Crossref) is a science & research MCP server from pcp183, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

It runs as a hosted endpoint, so there is nothing to install.

Install Research Paper & DOI Lookup (Crossref) MCP server

claude mcp add --transport http paper-lookup https://paper-lookup-production-56b0.up.railway.app/mcp

{
  "mcpServers": {
    "paper-lookup": {
      "url": "https://paper-lookup-production-56b0.up.railway.app/mcp"
    }
  }
}

{
  "mcpServers": {
    "paper-lookup": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://paper-lookup-production-56b0.up.railway.app/mcp"
      ]
    }
  }
}

Or add it as a custom connector under Settings → Connectors. The config above bridges via mcp-remote.

{
  "servers": {
    "paper-lookup": {
      "type": "http",
      "url": "https://paper-lookup-production-56b0.up.railway.app/mcp"
    }
  }
}

{
  "mcpServers": {
    "paper-lookup": {
      "serverUrl": "https://paper-lookup-production-56b0.up.railway.app/mcp"
    }
  }
}

Remote endpoints

streamable-httphttps://paper-lookup-production-56b0.up.railway.app/mcp

Freshness

Not enough public signals yet to judge maintenance.

Last commit (default branch)
no data · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-10-17 · 1d ago · official registry · v0.2.0

How it compares in Science & Research

Against the most-starred science & research servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Research Paper & DOI Lookup (Crossref) (this)	—	—	not measured	—	hosted
Wigolo	5,486	—	not measured	Active	local
Zotero	5,460	—	not measured	Active	local
Exa	5,138	2	564	Active	local + hosted
Postgres	3,403	—	not measured	Maintained	—
Arxiv	3,224	—	not measured	Active	local

All science & research MCP servers

FAQ

›How do I install the Research Paper & DOI Lookup (Crossref) MCP server in Claude Code?

Run: claude mcp add --transport http paper-lookup https://paper-lookup-production-56b0.up.railway.app/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Research Paper & DOI Lookup (Crossref) require an API key?

No required environment variables are declared in its published metadata.

›Can I use Research Paper & DOI Lookup (Crossref) as a remote (hosted) MCP server?

Yes. It is a hosted MCP server; connect to its URL with any client that supports remote MCP.

›Is Research Paper & DOI Lookup (Crossref) in the official MCP registry?

Yes, as io.github.pcp183/paper-lookup.

Sources and method

Official MCP Registry entry: updated 2026-10-17
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.