{"id":"xlwings-mcp-server-fastmcp","name":"xlwings-mcp-server-fastmcp","af_score":62.5,"security_score":22.8,"reliability_score":23.8,"what_it_does":"Provides an MCP server (stdio transport) that uses xlwings to automate Microsoft Excel through session-based operations (open workbook sessions, read/write cell data, apply formulas, manage worksheets/ranges/tables, and create charts), with configurable session TTL and limits.","best_when":"You run a trusted MCP client locally/in a controlled environment on Windows with Excel installed, and you want an agent to manipulate workbooks via a persistent session API.","avoid_when":"You expose the MCP server to untrusted networks/users or you cannot restrict what file paths, formulas, and workbook mutations the client can request.","last_evaluated":"2026-04-04T21:37:46.731495+00:00","has_mcp":true,"has_api":false,"auth_methods":["None documented for MCP tool calls"],"has_free_tier":false,"known_gotchas":["Session expiry (TTL) can cause 'Session Not Found' errors if operations take too long.","Excel automation is Windows/COM dependent; tool calls will fail without Excel and COM available.","Operations are stateful and likely order-dependent (e.g., writing requires an open workbook session).","Excel formula application may behave differently depending on calculation settings (EXCEL_MCP_CALC_MODE)."],"error_quality":0.0}