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.

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Managed

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

MCP URL

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

Claude.ai Cursor VS Code VS Code Insiders Goose LM Studio Cherry Studio ChatGPT

One-click install:

Install on Claude.ai Install for organization (admins)

The link prefills the Add custom connector dialog — you still review the values and click Add, then Connect to complete OAuth.

Or add manually

Open claude.ai → Settings → Connectors.
Click the + button and choose Add custom connector.
Set Name to Crossref and paste the MCP URL into Remote MCP server URL.
Click Add. Crossref will appear under Not connected — select it and click Connect to complete OAuth.