# TRELLO_ADD_CARDS

Creates a new card in a Trello list; idList is required, and if idCardSource is used, the source card must be accessible.

Agent View of the PolicyLayer registry record for `TRELLO_ADD_CARDS`. HTML page: https://policylayer.com/tools/trello/trello-add-cards

## Facts

- Tool: `TRELLO_ADD_CARDS`
- Server: Trello (`mcp-server-trello`) — https://policylayer.com/tools/trello.md
- Install: `npx -y mcp-server-trello`
- Homepage: git+https://github.com/Infall-Insurance/mcp-server-trello.git
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 12
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `due` | string | no | Due date for the card (date string or 'null' to remove). |
| `pos` | string | no | Position in list: 'top', 'bottom', or a positive float. |
| `desc` | string | no | Card description (0-16384 characters). |
| `name` | string | no | Name for the new card; required unless `idCardSource` or `urlSource` is used. |
| `closed` | string | no | Archive (close) the card. Valid values: 'true', 'false'. |
| `idList` | string | no | Required ID of the list to add the card to. |
| `labels` | string | no | Comma-separated label colors (e.g., 'blue', 'green') or 'all' for default labels. |
| `idBoard` | string | no | ID of the board to move the card to; if specified, `idList` must be on this board. |
| `idLabels` | string | no | Comma-separated list of label IDs (24-char hex) to add. |
| `idMembers` | string | no | Comma-separated list of member IDs (24-char hex) to assign. |
| `urlSource` | string | no | URL (http:// or https://) to attach; if a Trello card URL, copies that card. Use 'null' if not needed. |
| `fileSource` | string | no | Binary data of a file to attach. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "TRELLO_ADD_CARDS",
    "arguments": {}
  }
}
```

## Why TRELLO_ADD_CARDS is rated Medium

This tool creates or modifies data (adding a new card to a Trello board) in a reversible manner. The action is not destructive (data can be deleted), not financial, and not executing arbitrary code. The severity is medium because an AI agent could spam or clutter boards with unwanted cards, but the impact is limited to adding data that can be easily removed.

From the tool's own definition: "Creates a new card in a Trello list"

Risk signals: High parameter count (16 properties)

## Use case

AI agents use TRELLO_ADD_CARDS to create or update resources in Trello, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Trello environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Trello:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "TRELLO_ADD_CARDS": {
      "limits": [
        {
          "counter": "trello_add_cards_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Trello (199)

- `TRELLO_ADD_LISTS_ARCHIVE_ALL_CARDS_BY_ID_LIST` — Destructive — https://policylayer.com/tools/trello/trello-add-lists-archive-all-cards-by-id-list.md
- `TRELLO_ADD_LISTS_MOVE_ALL_CARDS_BY_ID_LIST` — Destructive — https://policylayer.com/tools/trello/trello-add-lists-move-all-cards-by-id-list.md
- `TRELLO_ADD_NOTIFICATIONS_ALL_READ` — Destructive — https://policylayer.com/tools/trello/trello-add-notifications-all-read.md
- `TRELLO_CONVERT_CHECKLIST_ITEM_TO_CARD` — Destructive — https://policylayer.com/tools/trello/trello-convert-checklist-item-to-card.md
- `TRELLO_DELETE_ACTIONS_BY_ID_ACTION` — Destructive — https://policylayer.com/tools/trello/trello-delete-actions-by-id-action.md
- `TRELLO_DELETE_BOARDS_MEMBERS_BY_ID_BOARD_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-boards-members-by-id-board-by-id-member.md
- `TRELLO_DELETE_BOARDS_POWER_UPS_BY_ID_BOARD_BY_POWER_UP` — Destructive — https://policylayer.com/tools/trello/trello-delete-boards-power-ups-by-id-board-by-power-up.md
- `TRELLO_DELETE_CARDS_ACTIONS_COMMENTS_BY_ID_CARD_BY_ID_ACTION` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-actions-comments-by-id-card-by-id-action.md
- `TRELLO_DELETE_CARDS_ATTACHMENTS_BY_ID_CARD_BY_ID_ATTACHMENT` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-attachments-by-id-card-by-id-attachment.md
- `TRELLO_DELETE_CARDS_BY_ID_CARD` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-by-id-card.md
- `TRELLO_DELETE_CARDS_CHECKLISTS_BY_ID_CARD_BY_ID_CHECKLIST` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-checklists-by-id-card-by-id-checklist.md
- `TRELLO_DELETE_CARDS_ID_MEMBERS_BY_ID_CARD_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-id-members-by-id-card-by-id-member.md
- `TRELLO_DELETE_CARDS_LABELS_BY_ID_CARD_BY_COLOR` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-labels-by-id-card-by-color.md
- `TRELLO_DELETE_CARDS_MEMBERS_VOTED_BY_ID_CARD_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-members-voted-by-id-card-by-id-member.md
- `TRELLO_DELETE_CARDS_STICKERS_BY_ID_CARD_BY_ID_STICKER` — Destructive — https://policylayer.com/tools/trello/trello-delete-cards-stickers-by-id-card-by-id-sticker.md
- `TRELLO_DELETE_CHECKLIST_ITEM` — Destructive — https://policylayer.com/tools/trello/trello-delete-checklist-item.md
- `TRELLO_DELETE_CHECKLISTS_BY_ID_CHECKLIST` — Destructive — https://policylayer.com/tools/trello/trello-delete-checklists-by-id-checklist.md
- `TRELLO_DELETE_LABELS_BY_ID_LABEL` — Destructive — https://policylayer.com/tools/trello/trello-delete-labels-by-id-label.md
- `TRELLO_DELETE_MEMBER_BOARD_BACKGROUND` — Destructive — https://policylayer.com/tools/trello/trello-delete-member-board-background.md
- `TRELLO_DELETE_MEMBER_CUSTOM_STICKER` — Destructive — https://policylayer.com/tools/trello/trello-delete-member-custom-sticker.md
- `TRELLO_DELETE_MEMBER_SAVED_SEARCH` — Destructive — https://policylayer.com/tools/trello/trello-delete-member-saved-search.md
- `TRELLO_DELETE_MEMBERS_BOARD_STARS_BY_ID_MEMBER_BY_ID_BOARD_STAR` — Destructive — https://policylayer.com/tools/trello/trello-delete-members-board-stars-by-id-member-by-id-board-star.md
- `TRELLO_DELETE_ORG_ASSOCIATED_DOMAIN` — Destructive — https://policylayer.com/tools/trello/trello-delete-org-associated-domain.md
- `TRELLO_DELETE_ORGANIZATIONS_BY_ID_ORG` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-by-id-org.md
- `TRELLO_DELETE_ORGANIZATIONS_LOGO_BY_ID_ORG` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-logo-by-id-org.md
- `TRELLO_DELETE_ORGANIZATIONS_MEMBERS_ALL_BY_ID_ORG_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-members-all-by-id-org-by-id-member.md
- `TRELLO_DELETE_ORGANIZATIONS_MEMBERS_BY_ID_ORG_BY_ID_MEMBER` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-members-by-id-org-by-id-member.md
- `TRELLO_DELETE_ORGANIZATIONS_PREFS_ORG_INVITE_RESTRICT_BY_ID_ORG` — Destructive — https://policylayer.com/tools/trello/trello-delete-organizations-prefs-org-invite-restrict-by-id-org.md
- `TRELLO_DELETE_TOKENS_BY_TOKEN` — Destructive — https://policylayer.com/tools/trello/trello-delete-tokens-by-token.md
- `TRELLO_DELETE_TOKENS_WEBHOOKS_BY_TOKEN_BY_ID_WEBHOOK` — Destructive — https://policylayer.com/tools/trello/trello-delete-tokens-webhooks-by-token-by-id-webhook.md
- …and 169 more: https://policylayer.com/tools/trello.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=trello · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/trello