A lot of teams run projects in Smartsheet and then spend part of every day checking it: did someone update that row, did the status change, has the new request come in. Then they copy what changed into email, chat or another system. Smartsheet can be reached through an API, a way for other software (or an AI assistant) to read and update your sheets directly, and to be told the moment something changes instead of someone watching for it.
What Smartsheet does
Smartsheet is a work management and collaboration platform. It combines spreadsheet-style sheets with project plans, Gantt charts, dashboards, forms and workflow automation for teams and enterprises. Its REST API gives software access to sheets, rows, columns, reports, workspaces, users, attachments and webhooks, and it can be used with OAuth 2.0 (the “allow this app to connect” screen) or with an API access token.
What you can get done
Webhook & Event Subscription Management
A webhook is a standing instruction: “when this sheet changes, send a message to this address.” It is what turns Smartsheet from something people check into something that tells your other systems what happened. A new row from an intake form can open a ticket in your helpdesk. A status changing to done can send the invoice. A date slipping can alert the project lead in chat. All of it starts with two calls:
POST /webhookscreates a webhook, naming what to watch and where to send the notification.GET /webhookslists the webhooks you have set up, so you can see what is connected and tidy up the ones you no longer need.
Once a notification arrives, the rest of the API does the follow-through. The Rows API reads and updates the rows that changed, the Sheets API manages the sheets themselves, the Columns API manages their structure, and the Reports API pulls report data into whatever dashboard your leadership already reads.
Getting started
Smartsheet is a hosted service you call over the web. Start with the Smartsheet API reference and the authentication guide, which explains when to use a token and when to use OAuth.
The Smartsheet profile on APIs.io brings it together, with the Smartsheet REST API and the Webhooks API as the places to begin. Pick the one sheet your team checks most often and make it the first one that tells you when it changes.
