Opencitations

About Opencitations

Use Opencitations with your agent

claude mcp add --transport http opencitations https://gateway.pipeworx.io/opencitations/mcp

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

Frequently asked questions

What is Opencitations?

Opencitations is an MCP (Model Context Protocol) server by pipeworx-io in the Search category. OpenCitations COCI — open-license citation index by DOI

How do I connect Opencitations to Claude, Cursor, or another MCP client?

Opencitations is a remote MCP server — add its endpoint (https://gateway.pipeworx.io/opencitations/mcp) to your client's MCP configuration (for example with "claude mcp add", or under "mcpServers" in Cursor's mcp.json) and restart the client.

Is Opencitations open source?

Yes — the source code is public at github.com/pipeworx-io/mcp-opencitations.

Can AI agents pay to use Opencitations?

Not yet through Loomal — Opencitations is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.