Developer API

Developer API

The Quadratic Developer API lets you programmatically create and edit spreadsheets: write cells, run code, import files, manage sheets, and read results. Use it to integrate Quadratic into data pipelines, internal tools, and scheduled jobs.

Authentication

Create an API token from your team settings under API tokens. Tokens are team-scoped and shown once at creation — store them like passwords.

Pass the token in the Authorization header:

Authorization: Bearer qdx_live_...

What you can do

Area	Capabilities
Files	List, get, create, and import files
Sheets	Add, rename, delete, duplicate, reorder, color, freeze panes
Cells	Get/set values, code cells (Python, JavaScript, SQL, Formula), rerun code, formats, borders, merges
Tables	Create data tables, convert ranges, column settings
Rows & columns	Insert, delete, resize
Validations	List, add, remove
Conditional formats	Get and update
Search & context	File outline, cell data, text search
History	Undo, redo
Connections	List connections and fetch database schemas

Files cannot be deleted through the API — deletion stays in the app.

Client libraries

Generated TypeScript and Python client libraries are available, so you can call the API with typed methods instead of raw HTTP.

Developer API vs. MCP

Both surfaces expose the same underlying operations. Use the Developer API for deterministic automation from your own code; use the MCP server when an AI agent should operate Quadratic on your behalf.