GRID

GRID provides a headless spreadsheet engine that runs natively inside an application and is described as compatible with Excel and Google Sheets. It gives AI agents a structured interface to read cells, apply changes, and recalculate via function calls rather than generated code. The page lists related products: Spreadsheet Engine, Agent Tools (an MCP server run via npx @grid-is/agent-tools), Spreadsheet Viewer, Spreadsheet Editor, and an Excel add-in. The page claims up to 2x faster responses and about one-third the token usage compared with agents that generate code, and reports a 91.25% score on SpreadsheetBench verified 400, with these figures presented as illustrative or vendor-evaluated. It also mentions that an Excel add-in was built for a platform used at major investment banks and that a leading LLM provider builds on GRID, though no customer names are given beyond the descriptions. Installation is via npm (@grid-is/spreadsheet-engine) with a free evaluation license, and commercial licensing is required when shipping.

Key features

• Headless spreadsheet engine running natively inside applications
• Structured operations for agents to read cells, write values, and recalculate via function calls
• Compatibility with Excel and Google Sheets stated on the page
• Agent Tools delivered as an MCP server (npx -y @grid-is/agent-tools)
• Lightweight themeable Spreadsheet Viewer for displaying spreadsheets
• Spreadsheet Editor scoped to user editing needs
• Excel add-in option built on the GRID engine and domain skills
• Installable agent skills (spreadsheet-engine and spreadsheet-ai-assistant) via npx skills add
• Goal seek demonstrated in the page's example
• Generation of spreadsheets from scratch by LLMs, as stated on the page
• Install via npm with a free evaluation license

Best suited for

• Developers building AI agents that need to read or edit spreadsheets
• Teams building AI assistants that work with Excel-style workbooks
• Products that need an embeddable spreadsheet viewer or editor
• Organisations building Excel add-ins with domain-specific skills

Pricing

Free evaluation license for npm install; commercial licensing required when shipping (specific commercial prices not stated on the website)