Trello

50 tools. 31 can modify or destroy data without limits.

4 destructive tools with no built-in limits. Policy required.

Last updated:

31 can modify or destroy data
19 read-only
50 tools total

Community server · catalogue entry checked 26/06/2026

How to control Trello ↓

What Trello exposes to your agents

Read (19) Write / Execute (27) Destructive / Financial (4)
Critical Risk

The most dangerous Trello tools

31 of Trello's 50 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

How to control Trello

PolicyLayer is an MCP gateway — it sits between your AI agents and Trello, and nothing reaches the server without passing your rules. These are the rules we recommend:

Deny destructive operations
{
  "archive_list": {
    "deny_if": [
      {
        "conditions": [],
        "on_deny": "Blocked by default. Requires approval."
      }
    ]
  }
}

Destructive tools should never be available to autonomous agents without human approval.

Rate limit write operations
{
  "add_card_to_list": {
    "limits": [
      {
        "counter": "add_card_to_list_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations
{
  "download_attachment": {
    "limits": [
      {
        "counter": "download_attachment_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

  1. Create a free account and register Trello — nothing to install.
  2. Add these rules — paste them, or build them visually. Tune the limits to your setup.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
ENFORCE POLICY ON TRELLO →

Instant setup, no code required.

All 50 Trello tools

WRITE 27 tools
Write add_card_to_list Add a new card to a specified list on a specific board Write add_cards_to_list Add multiple cards to a list in one operation. Cards are created sequentially (Trello API does not support bat Write add_checklist_item Add a new item to a checklist Write add_comment Add the given text as a new comment to the given card Write add_list_to_board Add a new list to the specified board Write archive_card Send a card to the archive on a specific board Write assign_member_to_card Assign a member to a specific card Write attach_data_to_card Attach binary data (image, markdown, PDF, text, etc.) to a card from base64-encoded data or a data URL. Use th Write attach_file_to_card Attach any file to a card from a URL on a specific board Write attach_image_data_to_card Attach an image to a card from base64 data or data URL (for screenshot uploads) Write attach_image_to_card Attach an image to a card from a URL on a specific board Write copy_card Copy/duplicate a Trello card to any list (even on a different board). Copies all properties by default includi Write copy_checklist Copy a checklist (with all its items) from one card to another. Works across different boards. Write create_board Create a new Trello board optionally within a workspace Write create_checklist Create a new checklist Write create_label Create a new label on a board Write move_card Move a card to a different list, potentially on a different board Write remove_member_from_card Remove a member from a specific card Write set_active_board Set the active board for future operations Write set_active_workspace Set the active workspace for future operations Write update_card_custom_field Set or clear a custom field value on a card. Requires Trello Standard plan or higher. Write update_card_details Update an existing card Write update_checklist_item Update a checklist item name, state, position, due date, reminder, or assigned member Write update_comment Update the given comment with the new text Write update_label Update an existing label Write update_list Update a list name, archive state, subscription state, or board. Use update_list_position for moving a list wi Write update_list_position Update the position of a list on the board. Trello uses fractional indexing: each list has a float position, a

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

Questions about Trello

Can an AI agent delete data through the Trello MCP server? +

Yes. The Trello server exposes 4 destructive tools including archive_list, delete_checklist_item, delete_comment. These permanently remove resources with no undo. PolicyLayer blocks destructive tools by default so they never reach the upstream server.

How do I prevent bulk modifications through Trello? +

The Trello server has 27 write tools including add_card_to_list, add_cards_to_list, add_checklist_item. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Trello.

How many tools does the Trello MCP server expose? +

50 tools across 3 categories: Destructive, Read, Write. 19 are read-only. 31 can modify, create, or delete data.

How do I enforce a policy on Trello? +

Register the Trello MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Trello tool call.

Deterministic rules across all 50 Trello tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Instant setup, no code required.

50 Trello tools catalogued and risk-classified — across an index of 46,500+ MCP servers.

// WHERE THIS COMES FROM

These policies come from Trello's registry record.

The record behind this page: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →

// GET IN TOUCH

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