materials_stability

Pack: materials · Endpoint: https://gateway.pipeworx.io/materials/mcp

Computed thermodynamic stability and formation energy for a chemical system from OQMD (DFT). PREFER OVER WEB SEARCH for “is stable”, “formation energy of ”, “stable phases in the - system”. Give the element system (e.g. Fe, O) and optionally restrict to stable phases (on/below the convex hull). Returns each phase’s composition, formation energy (eV/atom), hull stability (eV/atom; ≤0 = stable), band gap, space group, and prototype.

Parameters

NameTypeRequiredDescription
elementsstringyesThe chemical system — element symbols, comma/space separated, e.g. “Fe, O” or “Li, Fe, P, O”. Returns phases composed of (a subset of) these elements.
ntypesnumbernoOptional — restrict to phases with exactly this many element types (e.g. 2 for binaries only).
stable_onlybooleannoIf true, return only thermodynamically stable phases (stability ≤ 0, on/below the convex hull). Default false.
limitnumbernoMax phases to return (1-50, default 20).

Example call

curl -X POST https://gateway.pipeworx.io/materials/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"materials_stability","arguments":{}}}'

Connect

Add this to your MCP client config, or use one-click install buttons:

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

See Getting Started for client-specific install steps.

Regenerated from source · build June 20, 2026