@pipeworx/opencitations

OpenCitations MCP — open-license citation index (COCI + Index APIs). Keyless.

Part of Pipeworx — an MCP gateway connecting AI agents to 1394+ live data sources.

Tools

• references(doi) — DOIs cited BY the given DOI

• citations(doi) — DOIs that cite the given DOI

• citation_count(doi) — number of incoming citations for a DOI

• references_count(doi) — number of outgoing references for a DOI

• metadata(dois) — bibliographic metadata for one or more DOIs (comma-sep list, max 50)

• citation(oci) — a single citation by Open Citation Identifier

Related MCP server: OpenAIRE MCP Server

Data source

https://opencitations.net/index/coci/api/v1/ (COCI) and https://opencitations.net/index/api/v1/ (generic Index endpoints).

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "opencitations": {
      "url": "https://gateway.pipeworx.io/opencitations/mcp"
    }
  }
}

Or connect to the full Pipeworx gateway for access to all 1394+ 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 Opencitations data" })

The gateway picks the right tool and fills the arguments automatically.

More

• Docs and guides

• pipeworx.io

License

MIT