MDEngine by ForceField Silicon: hosted GPU molecular dynamics (LAMMPS, OpenMM) that any Claude can drive over MCP.
MCP server: https://api.forcefieldsilicon.com/mcp (guide, capabilities, preflight_deck and campaign_request need no key)
Start here: https://forcefieldsilicon.com/mdengine/start/
Keys: buy a credit pack at https://forcefieldsilicon.com/mdengine and paste the key once on the sign-in page, never in chat.
Plugins and guides: https://github.com/forcefieldsilicon/mdengine-plugins
Studies connector: https://api.forcefieldsilicon.com/dsuite/mcp (for named study customers: campaign status, matrix and report under an SOW key from ForceField Silicon)