I’d love MCP/API access for Proton Sheets so ChatGPT, Claude, and eventually Lumo can make direct, fast changes to spreadsheets.

I’m increasingly moving back to Excel simply because AI tools can work with it much more effectively. Computer use in Proton Sheets is significantly slower and becomes impractical for larger transformations compared with simply uploading an Excel file to ChatGPT, Claude, or Lumo.

Direct MCP/API access would make Proton Sheets much more competitive for AI-assisted workflows.