MCP Server

An MCP server for Trello boards, powered by Bun for maximum performance.

Local serverstdioTypeScript

What is the MCP MCP server?

Connect MCP to Claude, Cursor or any other MCP client and it stops being a tab you switch to. An MCP server for Trello boards, powered by Bun for maximum performance. The mcp mcp server is what makes that connection.

What the server does

A Model Context Protocol (MCP) server that gives AI agents full access to your Trello boards — cards, lists, checklists, attachments, comments, custom fields, and workspaces — with built-in rate limiting, type safety, and workflow-level tools you won't find in a plain API wrapper, like acceptance-criteria extraction and checklist dependency queries. 57 tools, one npx install, powered by Bun.

  • Acceptance criteria, natively — get_acceptance_criteria pulls a card's AC checklist straight into your agent's context — no competitor offers it
  • Watch anything — watch_card and watch_list route card and list activity into your Trello notifications
  • Full list management — create, update, reorder (update_list_position), and archive lists
  • Board and workspace switching on the fly — no restarts, no config edits
  • Rate limiting handled for you — respects Trello's API limits automatically (300 req/10s per key, 100 req/10s per token)
  • Bun-powered — fast startup and a 2.8-4.4x performance boost over the old Node build. npx and npm work too

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Token — Generate using your API key

Installation

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.

Credentials and setup notes

Configuration is passed through the environment: TRELLO_API_KEY, TRELLO_TOKEN, TRELLO_BOARD_ID, TRELLO_WORKSPACE_ID. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

Where it fits

Among the planning and project tracking options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. MCP's toolset — Token — is a fair guide to whether it matches your workflow. It is maintained by GitHub Actions; worth a glance at recent repository activity before you build anything load-bearing on it.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
TokenGenerate using your API key

How to install the MCP MCP server

{
  "mcpServers": {
    "trello": {
      "command": "bunx",
      "args": ["@delorenj/mcp-server-trello"],
      "env": {
        "TRELLO_API_KEY": "your-trello-api-key",
        "TRELLO_TOKEN": "your-trello-token"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
TRELLO_API_KEYCredential the server authenticates with.Yes
TRELLO_TOKENCredential the server authenticates with.Yes
TRELLO_BOARD_IDConfiguration value read at startup.Optional
TRELLO_WORKSPACE_IDConfiguration value read at startup.Optional

Example prompts to try

  • Use MCP to Token.

Frequently asked questions

It connects MCP to MCP-compatible AI assistants such as Claude and Cursor, exposing 1 tool (Token) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with MCP directly.