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OpenCitations provides open bibliographic and citation data. Use it to fetch citations and references by DOI and to look up bibliographic metadata.
Chat with AI and run tools instantly.
Browse all toolsDomain knowledge for OpenCitations — workflow patterns, data models, and gotchas for your AI agent.
OpenCitations provides open bibliographic and citation data. Use it to fetch citations and references by DOI and to look up bibliographic metadata.
Fetch bibliographic metadata for a DOI using OpenCitations Meta API.
List incoming citations for a DOI using OpenCitations Index API.
List outgoing references for a DOI using OpenCitations Index API.
OpenCitations provides open bibliographic and citation data. Use it to fetch citations and references by DOI and to look up bibliographic metadata. It provides 3 tools that AI agents can use through the Model Context Protocol (MCP).
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/opencitations. Authentication is handled automatically.
OpenCitations provides 3 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.
OpenCitations uses open data APIs — no authentication required.
Connect OpenCitations to any MCP client in minutes
https://mcp.mcpbundles.com/bundle/opencitationsThe link prefills the Add custom connector dialog — you still review the values and click Add, then Connect to complete OAuth.
OpenCitations and paste the MCP URL into Remote MCP server URL.Custom connectors at claude.ai require a paid Claude plan (Pro, Max, Team, or Enterprise).
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