Connect Trello

What is this connection for?

Trello allows ELChat to browse the tables, lists and maps accessible to the account, and then create, move or comment maps.

What you need

Identifier	Role	Confidentiality
API key	Identifies the Trello application	The key alone does not access data
User token	Authorizes application on behalf of member	Secret to protect

ELChat performs readings and writings: the token must be allowed with Trelloscopesread,write. The scopeaccountis not necessary for the actions implemented.

Step 1 — Create key and token

1. Log in to Trello with the member who owns the tables concerned.
2. Open Trello Apps Admin.
3. Create or select a Power-Up for ELChat integration.
4. Open its API Key tab.
5. Click Generate a new API Key if no key exists.
6. Launch the authorization of a token for this key with the telescopesread,writeand a duration consistent with your policy.
7. Accept access, then copy the displayed token.

The procedure and parameters of authorisation are detailed in the [official Trello documentation]](#). The historical linktrello.com/app-keydisplayed in some interfaces can now redirect to Power-Ups management.

Step 2 — Connect Trello to ELChat

1. Open Dashboard > your site > IA Actions > Connectors.
2. Click Connect on the Trello map.
3. Paste the API key.
4. Paste the user token.
5. Validate.

Check connection

Ask ELChat to list the accessible tables, then the columns of a test table and the maps of a column. Compare results with Trello before creation.

Capacity available

Actual capacity	Type
List accessible tables	Reading
List columns of a table	Reading
List cards in a column	Reading
View a card, its maturity, its members and its column	Reading
Create a card in a column	Writing
Move a card to another column	Writing
Leave a comment to a map	Writing

ELChat does not remove a card, create an array or column and does not manage checklists, attachments or automations.

Reconnect and Disconnect

Generate or authorize a new token, reconnect and test the list of tables. Remove the old one from Trello account settings > Applications. Disable in ELChat does not invalidate the token alone.

Common problems

• Disabled token / 401: the token has expired or revoked; Allow a new one.
• Writing refused: the token onlyreador the member is not entitled to change the table.
• No table: the token member is not a member or the table is closed.
• Error 429: Trello limits calls by key and token; Wait until you try again.

Security and limitations

A token can access the entire Trello account of the member according to its scopes. Use a dedicated member and immediately revoke an exposed token. The connector does not explicitly paginate all large collections; A very large organization may not be covered in a single request.

Example: commercial tracking table

Create a dedicated member or Power-UpELChat — Tests, allow the scopesread,write, then connect the API key and token to ELChat. List the tables, chooseProspects — Test, then check the listÀ qualifierand a known map before any creation.

The member limits the scope and the reading confirms that the token sees the right picture. Table and list names must come from Trello’s results: a guessed value can target a bad destination or fail silently.