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OpenCitations MCP — citation index (COCI + general Index API).
Opencitations is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 76/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Opencitations to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
mcp add io.github.pipeworx-io/opencitations https://gateway.pipeworx.io/opencitations/mcpReview the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-10-29T05:24:47.628811Z",
"publishedAt": "2026-10-29T05:24:47.628811Z",
"statusChangedAt": "2026-10-29T05:24:47.628811Z"
}
},
"server": {
"name": "io.github.pipeworx-io/opencitations",
"title": "Opencitations",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://gateway.pipeworx.io/opencitations/mcp",
"type": "streamable-http"
}
],
"version": "0.2.0",
"packages": [
{
"version": "0.2.0",
"transport": {
"type": "stdio"
},
"identifier": "@pipeworx/mcp-opencitations",
"registryType": "npm",
"environmentVariables": [
{
"name": "PIPEWORX_API_KEY",
"isSecret": true,
"description": "Optional Pipeworx API key. Without it calls are anonymous and capped daily; a free key raises the cap."
}
]
}
],
"repository": {
"url": "https://github.com/pipeworx-io/mcp-opencitations",
"source": "github"
},
"websiteUrl": "https://pipeworx.io/packs/opencitations",
"description": "OpenCitations MCP — citation index (COCI + general Index API)."
}
}