MCP server exposing 2 tools for crystallography.
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/crystallography/mcp
Content-Type: application/json
{"jsonrpc":"2.0","id":1,"method":"tools/list"}search_structures — Search the Crystallography Open Database (COD), an open repository of crystal structures (inorganic, organic, metal-organic, and mineral). Search by compound name (free text), chemical formula, or mineral name; returns matching crystal structures with unit-cell parameters, space group, year, and a link to the CIF structure file. Keyless. Provide at least one of query, formula, or mineral.get_structure — Look up a single crystal structure in the Crystallography Open Database (COD) by its numeric COD ID (e.g. "1009000"). Returns the compound/mineral name, chemical formula, space group, full unit-cell parameters (a, b, c, alpha, beta, gamma, volume), bibliographic details (title, authors, journal, year, DOI), and a link to the CIF structure file. Keyless.Code samples (curl / TypeScript / one-click client install), schemas, and the live playground are on the pack page:
https://pipeworx.io/packs/crystallography/
Pipeworx is an open MCP gateway connecting AI agents to live data. pipeworx.io