Summary
Wraps the Crossref REST API for searching and retrieving academic paper metadata without requiring authentication. Good for building research assistants, citation tools, or anything that needs to pull publication data, DOIs, author info, or journal details on the fly. Part of the Pipeworx gateway, so you can either use it standalone or tap into their broader collection of 250+ data sources. Includes an ask_pipeworx helper that lets you query in natural language instead of calling specific tools directly. Free tier available, runs over streamable HTTP, and you just drop the gateway URL into your MCP client config.
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mcp-crossref
Crossref MCP — wraps the Crossref REST API (academic papers, free, no auth)
Part of Pipeworx — an MCP gateway connecting AI agents to 673+ live data sources.
Tools
| Tool | Description |
|---|
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"crossref": {
"url": "https://gateway.pipeworx.io/crossref/mcp"
}
}
}
Or connect to the full Pipeworx gateway for access to all 673+ data sources:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English:
ask_pipeworx({ question: "your question about Crossref data" })
The gateway picks the right tool and fills the arguments automatically.
More
License
MIT
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →