canonical: https://jentic.com/apis/smartsheet.com/smartsheet

# Smartsheet API Reference

Updated 2025-01-22 <br/><br/><br/><br/> Introduction The Smartsheet API enables you to access and manage your organization's Smartsheet resources programmatically. Here are some of the things you can do: - Read and update sheets - Manage folders and workspaces - Administer Smartsheet plans and user accounts The [API resource specification](/#section/RESOURCES) includes object schemas, method speci. The API exposes 183 endpoints secured with bearer, oauth2 authentication.

## For AI agents

Programmatically list contacts, get contact. Covers 183 operations with bearer, oauth2 authentication.

## Scope

Does not handle payments, communications, or crm - use for productivity only.

## Capabilities

- List Contacts
- Get Contact
- Add Favorites
- Delete Multiple Favorites
- Is Favorite

## Use cases

### Productivity Operations

Use the Smartsheet API Reference to perform productivity operations programmatically. The API provides 183 endpoints covering core functionality including list contacts, get contact, list events.

Example prompt: Call GET /contacts to list contacts

### Automated alternateEmailAddress Management

Automate alternateemailaddress operations by combining multiple Smartsheet API Reference endpoints. Agents can get contact and then list events in a single workflow.

Example prompt: Call GET /contacts/{contactId} to get contact, then verify the result

### AI Agent Integration via Jentic

AI agents discover and call Smartsheet API Reference endpoints through Jentic without managing credentials directly. An agent searches for the required operation by intent, receives the matching endpoint schema, and executes the call with Jentic-managed authentication. This eliminates the need to read API documentation or handle bearer, oauth2 tokens manually.

Example prompt: Search Jentic for 'list contacts', load the operation schema, and execute with Jentic-managed credentials

## Key endpoints

| Method | Path | Description |
| --- | --- | --- |
| GET | /contacts | List Contacts |
| GET | /contacts/{contactId} | Get Contact |
| GET | /events | List Events |
| POST | /favorites | Add Favorites |
| GET | /favorites | Get Favorites |
| DELETE | /favorites/{favoriteType} | Delete Multiple Favorites |
| GET | /favorites/{favoriteType}/{favoriteId} | Is Favorite |
| DELETE | /favorites/{favoriteType}/{favoriteId} | Delete Favorite |

## Key resources

- **alternateEmailAddress** — Operations related to alternateEmailAddress
- **alternateEmailAddressDescription** — A User in Smartsheet must have a primary email address associated with their user account (User.emai
- **alternateEmailAddressObjects** — # AlternateEmail Object
  <SchemaDefinition schemaRef="#/components/schemas/AlternateEmail" />
- **attachments** — Operations related to attachments
- **attachmentsDescription** — Attachments can exist on a [comment](/tag/commentsDescription/) (that is, within a discussion), on a

## Why Jentic

- **Setup:** Wiring Smartsheet by hand means handling its bearer token or OAuth2 flow and picking the right regional host from api.smartsheet.com, .eu, .au, or smartsheetgov.com, plus managing retries yourself. Through Jentic you install once, import the Smartsheet API from the API Directory, store the credential once, and your agent calls it.
- **Permission scoping:** Smartsheet puts the resource id in the URL path (/contacts/{contactId}, /favorites/{favoriteType}/{favoriteId}), so a rule can pin your agent to reads on those resources. You choose the operations it may call, so removing a favorite is not included unless you add it.
- **Credential handling:** Your Smartsheet credential is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.
- **Discovery method:** Agents search Jentic by intent such as 'list my contacts' or 'add a favorite', and Jentic returns the matching Smartsheet operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

## Related APIs

- **Asana** — Alternative productivity API
- **Monday** — Alternative productivity API
- **Clickup** — Complementary productivity API

## FAQ

### What authentication does the Smartsheet API Reference use?

The Smartsheet API Reference uses bearer, oauth2 authentication. Through Jentic, these credentials are stored encrypted in your Jentic One instance and injected at execution time, so raw secrets never enter the agent context.

### Can I list contacts with the Smartsheet API Reference?

Yes. Use the GET /contacts endpoint. The API returns structured JSON responses that agents can parse and act on directly.

### What are the rate limits for the Smartsheet API Reference?

Rate limits are not specified in the OpenAPI spec. Check the vendor documentation for current limits. Through Jentic, rate limiting is handled automatically with retry logic built into the execution layer.

### How do I list contacts through Jentic?

Install the Jentic SDK with pip install jentic, authenticate through Jentic One, the self-hosted execution layer, then search for 'list contacts'. Jentic returns the matching Smartsheet API Reference operation with its input schema. Load the schema and execute the call - credentials are injected automatically.

### How many endpoints does the Smartsheet API Reference have?

The Smartsheet API Reference exposes 183 endpoints covering alternateemailaddress, alternateemailaddressdescription, alternateemailaddressobjects operations.

### Can I limit what my agent is allowed to do with the Smartsheet API?

Yes. Because Jentic One is self-hosted, you decide which Smartsheet operations and credentials your agent may use, and your own rules enforce that scope at execution time. Smartsheet puts the resource id in the URL path, such as /contacts/{contactId} and /favorites/{favoriteType}/{favoriteId}, so you can pin the agent to reads on those resources like Get Contact or List Contacts while excluding writes. You choose the operations it may call, so a destructive action like Delete Favorite is not available unless you explicitly add it.