Overview
Trello
Sync boards, lists, and cards with Trello.
Flows360 gives operators an end-to-end view of Trello alongside the rest of their stack — sync the objects that matter, run the actions you need, and trigger workflows on real-time events without writing glue code.
Capability summary
Authentication
Auth method: API Key and Server Token
Required scopes
read
write
account
Supported objects
| Object | Read | Write | Notes |
|---|---|---|---|
| Board | Yes | No | Represents a Trello board, which is a collection of lists. |
| List | Yes | Yes | Represents a list (i.e., a column) on a Trello board. |
| Card | Yes | Yes | Represents a card, which is the basic unit for tasks or records. This is the primary writable object. |
| Attachment | Yes | Yes | Represents a file or link attached to a card. |
| Checklist | Yes | Yes | A checklist on a card, containing multiple check items. |
| Member | Yes | No | Represents a Trello user who is a member of a board or card. |
Supported actions
| Action | Description |
|---|---|
| Create Card | Creates a new card on a specified list. |
| Update Card | Updates an existing card's attributes, such as name, description, or due date. |
| Archive Card | Archives a specific card, removing it from the board view. |
| List Cards | Retrieves a list of all cards on a specific board or list. |
| Add Comment to Card | Adds a text comment to a specific card. |
| Add Attachment to Card | Uploads and attaches a file to a specific card. |
Setup steps
Setup
- Log in to your Trello account. You must be an administrator of the Workspace you intend to sync.
- Navigate to the Trello Developer API Keys page at https://trello.com/app-key.
- Your API Key will be displayed in the first box under "Developer API Keys". Copy this value.
- On the same page, click the "Token" link under the API Key.
- On the next screen, click "Allow" to authorize the generation of a server token.
- Copy the generated server token that appears.
- In Flows360, navigate to the Trello connector settings and paste the API Key and the Server Token into their respective fields.
Limitations
Trello's API has a rate limit of 300 requests per 10 seconds per API token. Exceeding this limit will result in temporary blocking. Additionally, certain advanced features or objects may only be available on specific Trello plans (e.g., Business Class or Enterprise). Flows360's access is limited by the permissions of the user account used to generate the API Token.
Troubleshooting
I'm receiving a '401 Unauthorized' or 'invalid token' error.
This error indicates that either your API Key or, more likely, your Server Token is invalid. Please return to the Trello app-key page and regenerate your Server Token. Ensure you copy the entire token and paste it correctly into the connector settings.
My workflow is failing with a '404 Not Found' error.
A '404 Not Found' error typically means the specified resource (like a board, list, or card ID) could not be found. Verify that the IDs you are using in your workflow are correct. This can also occur if the user account associated with the Server Token does not have permission to access the requested resource. Check the user's board and workspace permissions in Trello.