SERVER

CrossRef MCP Server

Rank #82,716

io.github.SMABoundless/crossref

Search and retrieve scholarly metadata from the Crossref REST API

1 version

by smaboundless (10 servers)View repository ↗

Listed & last published

Jul 4, 2026

PURPOSE

What you can do with CrossRef MCP Server

CrossRef MCP Server is a Model Context Protocol (MCP) server published by smaboundless. It ranks #82,716 of 168,415 active servers on MCP Toplist. CrossRef MCP Server is listed across 3 registries — Official MCP, PulseMCP and Glama, with 1 tracked version. It was first listed on Jul 4, 2026 and most recently updated on Jul 4, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What CrossRef MCP Server can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using CrossRef MCP Server

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

Declared by Glama, last synced Nov 4, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

CROSSREF_MAILTO · optional

INSTALLATION AND FIRST TASK

Connect CrossRef MCP Server and confirm it works

Python package (PyPI)

claude mcp add crossref -e "CROSSREF_MAILTO=<your CROSSREF_MAILTO>" -- uvx crossref-mcp-server

Replace each placeholder with your own value before saving.

Python package (PyPI)

[mcp_servers.crossref]
command = "uvx"
args = ["crossref-mcp-server"]

[mcp_servers.crossref.env]
CROSSREF_MAILTO = "<your CROSSREF_MAILTO>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "mcpServers": {
    "crossref": {
      "command": "uvx",
      "args": [
        "crossref-mcp-server"
      ],
      "env": {
        "CROSSREF_MAILTO": "<your CROSSREF_MAILTO>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "mcpServers": {
    "crossref": {
      "command": "uvx",
      "args": [
        "crossref-mcp-server"
      ],
      "env": {
        "CROSSREF_MAILTO": "<your CROSSREF_MAILTO>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "servers": {
    "crossref": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "crossref-mcp-server"
      ],
      "env": {
        "CROSSREF_MAILTO": "<your CROSSREF_MAILTO>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "mcpServers": {
    "crossref": {
      "command": "uvx",
      "args": [
        "crossref-mcp-server"
      ],
      "env": {
        "CROSSREF_MAILTO": "<your CROSSREF_MAILTO>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

Python package (PyPI)

{
  "mcpServers": {
    "crossref": {
      "command": "uvx",
      "args": [
        "crossref-mcp-server"
      ],
      "env": {
        "CROSSREF_MAILTO": "<your CROSSREF_MAILTO>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by smaboundless

View all smaboundless servers →

No task-specific alternatives are catalogued for CrossRef MCP Serveryet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Jul 4, 2026
Latest version published: Jul 4, 2026
Version history: 1 version tracked (below)
Requirements evidence: Declared by Glama, last synced Nov 4, 2026. Not independently verified by MCP Toplist.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Nov 4, 2026

Registry sightings

PulseMCP ↗listed since Jul 8, 2026 · still listed
Official MCP ↗listed since Jul 24, 2026 · still listed
Glama ↗listed since Jul 29, 2026 · still listed

Do you maintain CrossRef MCP Server? to correct or enrich this profile.

VERSIONS

Available versions (1)

Version	Published
1.0.0	Jul 4, 2026

STANDING

#82,716of 168,415 active serversTop 50%

Ranks ahead of 85,699 of 168,415 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.SMABoundless%2Fcrossref.svg)](https://mcptoplist.com/server/io.github.SMABoundless%2Fcrossref)

HTML

<a href="https://mcptoplist.com/server/io.github.SMABoundless%2Fcrossref"><img src="https://mcptoplist.com/badge/io.github.SMABoundless%2Fcrossref.svg" alt="MCP Toplist: Top 50% of 168,415" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains CrossRef MCP Server?: CrossRef MCP Server is maintained by smaboundless, which publishes 10 MCP servers (5 total versions) tracked on MCP Toplist.
Is CrossRef MCP Server listed on the Official MCP Registry?: Yes — CrossRef MCP Server is listed on the Official MCP Registry, alongside PulseMCP and Glama.
How many versions does CrossRef MCP Server have?: MCP Toplist tracks 1 version of CrossRef MCP Server, most recently published on Jul 4, 2026.
Where can I find the source code for CrossRef MCP Server?: The source code for CrossRef MCP Server is hosted at github.com/smaboundless/crossref-mcp-server.

Used in projects

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