Get Crossref Paper By Doi
get_crossref_paper_by_doiGet a specific paper from CrossRef by its DOI.
How it works ↓Pricing
Per call
$0.01
Model
flat
Pay only for what you use. No subscriptions.
Inputs
doi *
stringInput Parameters
Cost per run
Execution cost$0.01
About Get Crossref Paper By Doi
Get a specific paper from CrossRef by its DOI. Args: doi: Digital Object Identifier (e.g., '10.1038/nature12373'). Returns: Paper metadata in dictionary format, or empty dict if not found. Example: get_crossref_paper_by_doi("10.1038/nature12373")
Frequently Asked Questions
Get a specific paper from CrossRef by its DOI. Args: doi: Digital Object Identifier (e.g., '10.1038/nature12373'). Returns: Paper metadata in dictionary format, or empty dict if not found. Example: get_crossref_paper_by_doi("10.1038/nature12373")
Get Crossref Paper By Doi costs $0.01 per call on xpay. No subscription, no minimums. Pay only for the calls you make. New accounts get $5 in free credits.
Connect the Paper Search MCP endpoint to your client — Claude Code: claude mcp add --transport http paper-search "https://paper-search.mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY"; Cursor/Windsurf/Cline/VS Code: same URL in mcp.json. The agent will see get_crossref_paper_by_doi as a callable tool with the input schema and run it directly. (Unified across all providers: https://mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY, then xpay_run with toolPath paper-search/get_crossref_paper_by_doi.)
Yes — that's exactly what xpay is for. You don't need a Paper Search account or API key. Sign up at xpay.tools (Google or email), get $5 free credit, and run Get Crossref Paper By Doi immediately. Billing flows through your xpay balance.
Get Crossref Paper By Doi accepts 1 input parameter: doi. See the input schema and runnable form on this page for details and to test live.