Crossref MCP Server

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Crossref provides DOI registration and rich scholarly metadata. Use the Crossref REST API to search works and fetch metadata by DOI.

2 tools

Agent guide included

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AI Skill
SKILL.md

Domain knowledge for Crossref — workflow patterns, data models, and gotchas for your AI agent.

Crossref

Crossref provides DOI registration and rich scholarly metadata. Use the Crossref REST API to search works and fetch metadata by DOI.

Data Model

Works (scholarly publications) — search returns DOI; fetch full metadata by DOI. Public API; optional mailto improves rate limits (polite pool).

Gotchas

Polite pool: Include mailto contact for better rate limits and service.
DOI format: Use full DOI string (e.g. 10.1234/example), not just suffix.

Tools in this Server (2)

Crossref Get Work By Doi

Fetch a Crossref work by DOI and return the Crossref message object.

Crossref Search Works

Search Crossref for works and return the raw Crossref items (includes DOI field when present).

Frequently Asked Questions

What is the Crossref MCP server?

Crossref provides DOI registration and rich scholarly metadata. Use the Crossref REST API to search works and fetch metadata by DOI. It provides 2 tools that AI agents can use through the Model Context Protocol (MCP).

How do I connect Crossref to my AI agent?

Add the MCPBundles server URL to your MCP client configuration (Claude Desktop, Cursor, VS Code, etc.). The URL format is: https://mcp.mcpbundles.com/bundle/crossref. Authentication is handled automatically.

How many tools does Crossref provide?

Crossref provides 2 tools that can be called by AI agents, along with a SKILL.md that gives your AI agent domain knowledge about when and how to use them.

What authentication does Crossref require?

Crossref uses open data APIs — no authentication required.

Setup Instructions

Connect Crossref to any MCP client in minutes

https://mcp.mcpbundles.com/bundle/crossref

What is MCP?

Model Context Protocol lets AI tools call external capabilities securely through a single URL. This bundle groups tools behind an MCP endpoint that many clients can use.

Use this bundle in 3 steps

Copy the MCP URL above
Open your AI tool and add a new MCP/connector
Paste the URL and follow any auth prompts

Claude Desktop Users

Skip the manual setup! Use the .mcpb file format for one-click installation. Check the Claude Desktop tab for setup instructions.

Pick your tool tab for exact steps

Select ChatGPT, Cursor, Claude Code, or another tab for copy-paste config.

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Crossref MCP Server & Skill — 2 Tools