Spreadsheets as APIs
Turn spreadsheets into powerful web services
Our environment ensures full compatibility with Excel and Google Sheets, running your models seamlessly in the cloud, transforming spreadsheets into flexible RESTful web services for easy integration into your applications.

Work with confidence
Recalculations without permanent writes
Once you upload your spreadsheet to our API, it’s kept separate from ongoing calculations. This lets you adjust inputs and test various outcomes, knowing your original data is preserved. Integrate the data and logic of existing spreadsheets into your applications, letting business users maintain them while you focus on building the application.

Built for AI
Optimized for AI integrations
Large language models excel at text but struggle with calculations. GRID turns your spreadsheets into web services, seamlessly integrating complex models into AI and LLM projects. This enables reliable, dynamic responses - that can even be accessed using natural language.

How compatible are the calculations to Excel and Google Sheets?
What are the primary use cases for the GRID API?
How can I verify the calculations from GRID?
Can I connect a spreadsheet from Google Sheets to GRID and keep it in sync?
Can I call the GRID API from a Custom GPT?
blog
14.03.2025
Build a simple loan calculator API with GRID Python SDK
Harness the power of Excel to do the heavy lifting — use formulas to calculate values within a complicated data model, all in a few lines of code.

Atli Páll Hafsteinsson
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RESTful API ready to be queried in minutes
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Convert your spreadsheets to web services and integrate calculations to any software, workflow or AI project.
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