MCP server

Crystallography

io.github.pipeworx-io/crystallography

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Crystallography Open Database (COD) MCP.

Website Source

At a glance

Type

MCP server

Publisher

pipeworx.io (verified by the MCP Registry)

Status

Working at last check

Tools

45

Token cost

About 27,115 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.crystallography]
url = "https://gateway.pipeworx.io/crystallography/mcp"

Gemini CLI

{"mcpServers":{"crystallography":{"httpUrl":"https://gateway.pipeworx.io/crystallography/mcp"}}}

Cursor

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

VS Code

{"servers":{"crystallography":{"type":"http","url":"https://gateway.pipeworx.io/crystallography/mcp"}}}

Antigravity

agy mcp add crystallography https://gateway.pipeworx.io/crystallography/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"crystallography","server_url":"https://gateway.pipeworx.io/crystallography/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"crystallography","server_url":"https://gateway.pipeworx.io/crystallography/mcp"}

Tools

• get_cif ~189 tokens
  Fetch the full CIF (Crystallographic Information File) for a COD structure by its numeric COD ID — the actual machine-readable structure: symmetry operations and the atom sites (element, fractional x/y/z coordinates, occupancy). Use after search_structures/get_structure when you need the real atomic
• get_structure ~169 tokens
  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, yea
• search_structures ~454 tokens
  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 l

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