Integrate the Smartsheet API.Caddi writes and runs the integration for you.
Smartsheet has a REST API. Customers only: Smartsheet names the required plan as Business, Enterprise, or Advanced Work Management.
- 99%of agent runs complete successfully
- ~45 minon average to build your first agent
- 1M+back-office tasks completed
The connection is a project before it does anything.
Before the first record moves: an app registration, credentials, token refresh, and somewhere to host and monitor the code. 300 requests per minute per API token, and attachment uploads and cell-history calls count 10x each (so 30 per minute).
Register an app, store Smartsheet credentials, refresh tokens and code around the rate limits.
Connect your Smartsheet account once. Caddi holds the connection.
The job doesn't stop at Smartsheet.
An intake, a filing or a client update also runs through email, documents and the other systems your team works in. The Smartsheet API only reaches Smartsheet.
Each extra system is another API, another set of credentials, another integration to own.
One automation runs across every tool the job touches, each through its API.
Someone has to own the code.
API versions change, fields get added and your process moves.
A developer patches and redeploys the integration each time.
The person who does the work updates it by showing or describing the change. Every automation is reviewed before it runs in production, and every run is logged.
What the Smartsheet API gives you
- Type
- REST (JSON)
- Authentication
- OAuth 2.0 or API access token (Bearer)
- Who can get access
- Customers only: Smartsheet names the required plan as Business, Enterprise, or Advanced Work Management.
- What it covers
- Sheets, rows, columns, cells, folders, workspaces, reports, attachments, discussions, users and webhooks.
- Limits
- 300 requests per minute per API token, and attachment uploads and cell-history calls count 10x each (so 30 per minute).
Official docs: developers.smartsheet.com. Checked September 2026. Vendors change access terms, so confirm with Smartsheet before you build.
When to build the Smartsheet integration in-house
When you have engineers and the integration is your product, or you need one narrow sync between two systems and someone to own it. When the goal is getting Smartsheet work off someone's desk, the build is the slow part, and Caddi does it for you.
What teams usually want the Smartsheet API for
Intake PDF Filing
Caddi extracts client and contract details from intake PDFs, renames and files them to the right submissions folder, and updates the submission tracker.
Email-to-row
Caddi reads inbound request emails and adds the structured row to the right Smartsheet with linked records and the right owner.
Sheet ↔ CRM sync
Caddi keeps a slice of CRM data mirrored into Smartsheet and writes any updates back to the source.
Status-change notification
When a Smartsheet row changes state, Caddi notifies the right channel in Slack or Teams with full context.
Everything Caddi does with Smartsheet.
Smartsheet API questions
Does Smartsheet have an API?
Yes. Smartsheet has a REST API, authenticated with OAuth 2.0 or API access token (Bearer). The official documentation is at https://developers.smartsheet.com/api/smartsheet/introduction.
How do I get access to the Smartsheet API?
Customers only: Smartsheet names the required plan as Business, Enterprise, or Advanced Work Management.
Does the Smartsheet API have rate limits?
300 requests per minute per API token, and attachment uploads and cell-history calls count 10x each (so 30 per minute).
Can I connect Smartsheet to my other tools without writing code against its API?
Yes. With Caddi you show the Smartsheet task once, the way you'd train a new hire, and Caddi builds it as verified code that runs across Smartsheet and the other tools the job touches. Steps that need a person's judgment are handed to Copilot or Claude, and Caddi monitors those too.
Do I need a developer to automate Smartsheet with Caddi?
No. There is no integration code for you to write or maintain. Every automation Caddi builds for Smartsheet is reviewed before it runs in production, and every run is logged.