Productivity · Integration
Trello
Add Trello to your product for your customers, and give your AI agents governed access to it.
Trello's model is deliberately small, which is why it turns up in so many teams: a board holds lists, a list holds cards, and a card carries members, labels, due dates, checklists and whatever custom fields that board has added. An embedded Trello integration creates cards on the board a customer nominates, moves them between lists when your product's own state changes, reads back what people have done to them, and reacts through webhooks registered against a specific board or card. The thing to design around is that position in a list is the status: there is no status field, so a card being done means it sits in the list that team calls done, and every board names those lists differently. Boards belong to individual members as well as to workspaces, so the connected account decides what is reachable. fastn holds each token per tenant.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let each customer connect their own Trello account so work your product creates appears on the board their team already watches.
Create a card with the labels, members, due date and custom fields that board actually uses.
Move a card between lists as your product's own state changes, since position in a list is what a team reads as status.
Register a webhook on the board a customer nominated so a change made in Trello reaches your product without polling.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent summarises what moved on a board this week and which cards have not moved at all.
An agent creates or moves a card within scoped permissions, with the board and list it wrote to recorded.
An agent finds cards past their due date with no member assigned and reports who owns the list.
Example prompt
Which cards on this board are past their due date, and which list has the most of them?
Set up Trello in 4 steps
- 01Enable the Trello connector in your fastn dashboard.
- 02Have each customer authorise their own Trello account, since boards can belong to a member as well as to a workspace.
- 03Map the boards, lists, labels and custom fields your product uses, and decide which list means done for each customer.
- 04Call it from your product and expose the same connection to your agents through the MCP gateway.
Why teams use the Trello integration
What you get by embedding it with fastn instead of building it yourself.
- Ship a Trello integration without building it. Your customers connect their own Trello 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 Trello update is not your on-call problem.
- One integration serves your product and your agents. The same governed Trello 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.
Used by these teams
Compare with
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AWS Simple Storage ServiceTrello integration FAQ
How do I add a Trello integration to my product?
Enable the Trello connector in your fastn dashboard, then let each customer authenticate their own Trello account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Trello client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Trello account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Trello 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 Trello 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 summarises what moved on a board this week and which cards have not moved at all.
Who maintains the Trello integration?
fastn does. When Trello 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 Trello automatically?
Yes. Items can be created, updated, assigned and transitioned from your product, and changes made in Trello can trigger your workflows in return.
Does it adapt to each team's own Trello setup?
Yes. However a team has configured Trello, 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 Trello integration?
A common starting point: let each customer connect their own Trello account so work your product creates appears on the board their team already watches. 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 Trello integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Trello does not change your per-connector cost. You can start free with 3 connected accounts.
Add Trello to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.