Integration with Claude AI

Since the failure happens during browser authorization, I would first verify that the browser is signed into the intended Atlassian account, allow the authorization window, and retry after disconnecting the incomplete integration. The Claude desktop application should not be necessary just to complete browser OAuth.

If the underlying need is to perform Trello actions using natural-language instructions, I develop BoardPilot. It works inside Trello, shows the planned changes for review, and executes only after approval:

https://www.trello-plugins.com/boardpilot

Hi @Sathya_ T  could you confirm a few details

Are you connecting Claude to the official Trello MCP endpoint: https://mcp.trello.com/v1?

Are you using Claude Desktop or Claude in the browser? During the OAuth flow, do you see the Trello Workspace you want to connect, or does the failure happen before the Workspace selection screen?

Is this Trello Workspace managed by an Atlassian organization/Enterprise admin? If yes, can your Org Admin confirm that Trello MCP access and the required read_trello / write_trello permissions are allowed?

Does disconnecting and reauthorizing the Trello MCP connection produce the same error?

Best,

Arek 🤠