Productivity · Integration
Smartsheet
Add Smartsheet to your product for your customers, and give your AI agents governed access to it.
Smartsheet looks like a spreadsheet and behaves like a work management system, so the objects are sheets with typed columns, rows carrying cells, attachments and comments, and the workspaces and reports built on top of them. An embedded Smartsheet integration reads and writes rows, adds and updates columns where that is allowed, reads reports, attaches files, and subscribes to webhooks so an edit a person makes moves your workflow. The catch is that a sheet is not a table with a fixed schema: column names, types and formulas are chosen by whoever built it, so reading the column definitions before mapping is what stops an unusual sheet from breaking your integration. fastn keeps the per-customer credentials, handles pagination and rate limits, and follows the API.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let each customer connect their own Smartsheet workspace so your product reads and updates the sheets their team already runs on.
Read column definitions at connect time so your mapping matches how that customer built the sheet.
Write rows from your product, attachments included, so the sheet stays the place people look.
Subscribe to a sheet webhook so a cell somebody edits triggers work on your side.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent finds rows matching a condition and reports what they say, limited to the sheets you allowed.
An agent updates or adds a row within governed permissions, with each write logged.
An agent reads a report to summarise progress across several sheets at once.
Example prompt
Which rows on this sheet have slipped past their finish date, and who is named on each?
Set up Smartsheet in 4 steps
- 01Enable the Smartsheet connector in your fastn dashboard.
- 02Have each customer authorise their own Smartsheet account so sharing permissions carry over.
- 03Read the column definitions of the sheets in scope, map them to your own fields, then enable the actions and webhooks you need.
- 04Call it from your product and expose the same connection to your agents through the MCP gateway.
Why teams use the Smartsheet integration
What you get by embedding it with fastn instead of building it yourself.
- Ship a Smartsheet integration without building it. Your customers connect their own Smartsheet account inside your product and work their work items, assignees and due dates there, with no per-customer code on your side.
- Handle the part that actually costs time: every team configures its own fields, statuses and workflow stages. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so a Smartsheet update is not your on-call problem.
- One integration serves your product and your agents. The same governed Smartsheet connection powers in-product features and gives AI agents scoped, audited access, so you keep work items in step with what happens in your product without wiring it twice.
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How do I add a Smartsheet integration to my product?
Enable the Smartsheet connector in your fastn dashboard, then let each customer authenticate their own Smartsheet account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Smartsheet client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Smartsheet account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Smartsheet account and only ever sees their own work items, assignees and due dates. That per-tenant isolation is the point of an embedded integration: you support the long tail of customer setups without maintaining an integration per customer.
Can AI agents use this Smartsheet integration?
Yes. The same connection is exposed to your agents through the fastn MCP gateway, with permissions scoped per tenant and every call audited. An agent finds rows matching a condition and reports what they say, limited to the sheets you allowed.
Who maintains the Smartsheet integration?
fastn does. When Smartsheet changes an endpoint, deprecates a field or alters its auth, the fix lands in the connector rather than in your backlog, and your customers' connections keep working.
Can my product create and update work in Smartsheet automatically?
Yes. Items can be created, updated, assigned and transitioned from your product, and changes made in Smartsheet can trigger your workflows in return.
Does it adapt to each team's own Smartsheet setup?
Yes. However a team has configured Smartsheet, whether that is custom fields, statuses and workflow stages or its own calendars and working hours, those are mapped per customer, so an unusual setup works without custom code from you.
What can I build with the Smartsheet integration?
A common starting point: let each customer connect their own Smartsheet workspace so your product reads and updates the sheets their team already runs on. Teams also use it for the other use cases listed above, and expose it to agents for governed reads and writes.
How much does the Smartsheet integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Smartsheet does not change your per-connector cost. You can start free with 3 connected accounts.
Add Smartsheet to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.