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Trello MCP Server
for AI Agents

Production-ready Trello MCP server with 133 extensible actions — plus built-in authentication, security, and optimized execution.

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Trello MCP Server
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Coverage

133 Agent Actions

Create, read, update, and delete across Trello — and extend your agent's capabilities with custom actions.

MCP Actions → Create Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your Trello MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every Trello tool response scanned for prompt injection in milliseconds — 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Trello call.

Tools Discovery →

What is the Trello MCP Server?

A Trello MCP server lets AI agents read and write Trello data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Trello MCP server ships with 133 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, and optimized agent context. Connect it from MCP clients like Claude Desktop, Cursor, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All Trello MCP Tools and Actions

Every action from Trello's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.

Actions

  • Get Action

    Get a single action by ID

  • Delete Action

    Delete an action

Action Reactions

  • Create Action Reaction

    Create a reaction for an action

  • List Action Reactions

    Get reactions for an action

  • Get Action Reaction

    Get a single reaction on an action by reaction ID

  • Delete Action Reaction

    Delete a reaction from an action

Attachments

  • Create Attachment

    Create a URL attachment on a card

  • Get Attachment

    Get a single attachment by ID

  • Delete Attachment

    Delete an attachment from a card

Boards

  • Create Board

    Create a new Trello board

  • List Boards

    Get all boards the authenticated member belongs to

  • Get Board

    Get a single board by ID

  • Update Board

    Update an existing Trello board

  • Delete Board

    Delete a Trello board

Board Stars

  • Create Board Star

    Create a board star for a member

  • List Board Stars

    Get boardStars on a board

  • Delete Board Star

    Remove a board star to unfavorite a board for a member

Cards

  • Create Card

    Create a new card

  • Get Card

    Get a single card by ID

  • Update Card

    Update an existing card

  • Delete Card

    Delete a card

Card CheckItems

  • Get Card CheckItem

    Get a specific checkItem on a card

  • Update Card CheckItem

    Update a checkItem on a card

  • Delete Card CheckItem

    Delete a checkItem from a card

Card Checklists

  • List Card Checklists

    Get all checklists on a card

  • Delete Card Checklist

    Delete a checklist from a card

Checklists

  • Create Checklist

    Create a new checklist on a card

  • Get Checklist

    Get a single checklist by ID

  • Update Checklist

    Update a checklist

  • Delete Checklist

    Delete a checklist

CheckItems

  • Create CheckItem

    Create a new checkItem on a checklist

  • Get CheckItem

    Get a single checkItem on a checklist

  • Update CheckItem

    Update a checkItem on a card

  • Delete CheckItem

    Delete a checkItem

Labels

  • Create Label

    Create a new label on a board

  • Get Label

    Get a single label by ID

  • Update Label

    Update an existing label

  • Delete Label

    Delete a label

A Lists

  • Create A List

    Create a new list on a board

  • Get A List

    Get a single list by ID

  • Update A List

    Update an existing list

Members

  • Get Member

    Get a single member by ID

  • Update Member

    Update a member's profile including name, initials, bio, avatar source, and preference settings

Member Saved Searchs

  • Create Member Saved Search

    Create a new saved board search query for a member

  • Update Member Saved Search

    Update a member's saved search name, query, or position

  • Delete Member Saved Search

    Delete a member's saved search query

Organizations

  • Create Organization

    Create a new organization (workspace)

  • List Organizations

    Get all organizations the authenticated user belongs to

  • Get Organization

    Get a single organization by ID

  • Update Organization

    Update an organization

  • Delete Organization

    Delete an organization (workspace)

Organization Members

  • List Organization Members

    Get all members of an organization

  • Update Organization Member

    Update a member of an organization

  • Remove Organization Member

    Remove a member from an organization

Other (79)

  • Add A Member To A Board

    Add a member to a board

  • Add Label To Card

    Add an existing label to a card

  • Add Member Vote To Card

    Vote on behalf of a member on a card

  • Create Card Label

    Create a new label on a card

  • Add Member To Card

    Add a member to a card

  • Add A Comment To A Card

    Add a new comment to a card

  • List Board Actions

    Get all actions (activity events) on a board

  • List Card Actions

    Get activity/actions for a card

  • Get Action Board

    Get the board for an action

  • Get Action Card

    Get the card for an action

  • Get Action List

    Get the list for an action

  • Get Action Member

    Get the member of an action

  • Get Action Member Creator

    Get the member creator of an action

  • Get Action Organization

    Get the organization of an action

  • List Action Reactions Summary

    Get a summary of reactions grouped by emoji type for an action

  • Get Board Field

    Get a specific field on a board

  • List Board Cards

    Get all cards on a board

  • List Board Lists

    Get all lists on a board

  • List Board Members

    Get all members of a board, including admins, normal members, and observers

  • List Board Memberships

    Get all memberships of a board

  • List Board Checklists

    Get all checklists on a board

  • Get Board Cards Filtered

    Get filtered cards on a board

  • List Board Plugins

    Get plugins on a board

  • Get Card Field

    Get a specific field on a card

  • List Card Attachments

    Get all attachments on a card

  • List Card Members

    Get all members assigned to a card

  • List Card Members Voted

    Get members who have voted on a card

  • Get Card CheckItem States

    Get the completed checkItems on a card

  • Get The Board The Card Is On

    Get the board for a card

  • Get The List Of A Card

    Get the list for a card

  • List Checklist CheckItems

    Get checkitems on a checklist

  • Get Checklist Board

    Get the board a checklist is on

  • Get Checklist Card

    Get the card a checklist is on

  • List Board Labels

    Get all labels on a board

  • Get Filtered Lists On A Board

    Get filtered lists on a board

  • Get Cards In A List

    Get all cards in a list

  • Get Actions For A List

    Get actions for a list

  • Get The Board A List Is On

    Get the board a list is on

  • List Member Boards

    Get all boards a member belongs to

  • List Member Organizations

    Get all organizations a member belongs to

  • List Member Cards

    Get all cards a member is assigned to

  • Get Current Member

    Get the authenticated member's full profile information

  • List My Cards

    Get all cards the authenticated member is assigned to

  • List Member Actions

    Get a member's activity history including card creates, updates, comments, and board changes

  • List Member Notifications

    Get a member's in-app notifications for mentions, card assignments, due date reminders, and board activity

  • List Member Board Stars

    Get a member's starred (favorited) boards and their positions in the member's sidebar

  • List Member Boards Invited

    Get boards a member has been invited to

  • List My Actions

    Get the authenticated member's activity history across all boards

  • List My Board Stars

    Get the authenticated member's starred (favorited) boards and their sidebar positions

  • List My Boards Invited

    Get boards the authenticated member has been invited to

  • List My Notifications

    Get the authenticated member's notifications

  • List My Organizations Invited

    Get organizations the authenticated member has been invited to

  • List My Tokens

    Get the authenticated member's API tokens including app names, permissions, and expiry dates

  • List My Board Backgrounds

    Get the authenticated member's available board backgrounds including default colors and custom uploads

  • List My Organizations

    Get the authenticated member's organizations (workspaces)

  • List Member Custom Board Backgrounds

    Get a member's custom uploaded board background images

  • List Member Saved Searches

    Get a member's saved board search queries

  • List Member Tokens

    Get API tokens issued to a specific member by app name and permissions

  • List Organization Boards

    Get all boards in an organization

  • List Organization Actions

    Get actions for an organization

  • List Organization Memberships

    Get memberships of an organization

  • Search Trello

    Search across Trello boards, cards, and members

  • Search For Members

    Search for members in Trello

  • Update Action Comment

    Update a comment action. Only comment actions can be updated.

  • Update Membership Of Member On A Board

    Update a membership on a board

  • Move Card To List

    Move a card to a different list

  • Update Comment On A Card

    Update a comment on a card

  • Move All Cards In List

    Move all cards in a list to another list

  • Update IdBoard On A List

    Move a list to another board

  • Remove A Member From A Board

    Remove a member from a board

  • Remove Member Vote From Card

    Remove a member's vote on a card

  • Remove Label From Card

    Remove a label from a card

  • Remove Member From Card

    Remove a member from a card

  • Delete A Comment On A Card

    Delete a comment from a card

  • Mark Board As Viewed

    Mark a board as viewed

  • Invite Board Member Via Email

    Invite a member to a board via email

  • Mark Card Notifications Read

    Mark a card's notifications as read

  • Archive A List

    Archive a list

  • Archive All Cards In List

    Archive all cards in a list

Set Up Your Trello MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to Trello in under 10 lines of code.

MCP Clients

Agent Frameworks

Claude Desktop
{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

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Trello MCP Server Resources

MCP Code Mode: Keeping Tool Responses Out of Agent Context

Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.

11 min

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

10 min

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

Trello MCP Server FAQ

Trello MCP server vs direct API integration — what's the difference?
A Trello MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Trello. A Trello MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling Trello at runtime. StackOne provides both.
How does Trello authentication work for AI agents?
Trello authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Trello account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.
Are Trello MCP tools vulnerable to prompt injection?
Yes — Trello MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.
What is the context bloat of a Trello agent and how do I avoid it?
Context bloat happens when Trello tool schemas and API responses eat your Trello agent's memory, preventing it from reasoning effectively. A single Trello query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.
Can I limit which actions my Trello agent can access?
Yes — you can limit which actions your Trello agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.
Can I create custom agent actions for my Trello MCP server?
Yes — you can create custom agent actions for your Trello MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Trello's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a Trello MCP server?
Skip a Trello MCP server if your integration is purely software-to-software — direct Trello API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Trello actions at runtime.
What AI frameworks and AI clients does the StackOne Trello MCP server support?
The StackOne Trello MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

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All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.

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