MCP server exposing 1 tool for research-chain.
This URL is a JSON-RPC 2.0 endpoint over HTTP. Issue POST requests with a JSON-RPC body. Browsers and search crawlers land here on GET.
POST https://gateway.pipeworx.io/research-chain/mcp
Content-Type: application/json
{"jsonrpc":"2.0","id":1,"method":"tools/list"}research_chain — Everything openly available around a paper, in ONE call: full text, license, datasets, code, and citations. Given a DOI, PMID, or arXiv id, walks paper (Crossref + OpenAlex) -> open copies with PER-COPY license and version (Unpaywall + PubMed Central — never collapses "free to read" into "permitted to reuse") -> datasets that cite it (DataCite relatedIdentifiers) -> code/materials that implement it (Zenodo, Hugging Face Papers) -> papers that cite it (Semantic Scholar) -> retraction status (Crossref/Retraction Watch). Use for "what datasets/code are linked to <DOI>", "is this paper retracted", "find an open copy of <DOI> and its license", "who has cited <paper>". Each leg is independently fetched — a slow/dead upstream is listed in sources_failed rather than failing the whole call.Code samples (curl / TypeScript / one-click client install), schemas, and the live playground are on the pack page:
https://pipeworx.io/packs/research-chain/
Pipeworx is an open MCP gateway connecting AI agents to live data. pipeworx.io