Slack Canvases API

The Slack Canvases API lets apps programmatically create, edit, delete, and manage access to Slack Canvases, which are rich document surfaces embedded within Slack. Key methods include canvases.create for creating standalone canvases, canvases.edit for modifying content with operations like insert, replace, and delete, canvases.delete for removing canvases, and canvases.access.set and canvases.access.delete for managing who can view or edit a canvas.