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Trello MCP Integration for LangGraph

Connect Trello to LangGraph through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 6 read 1 write Bearer token auth
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Connect Trello to LangGraph

Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.

Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with --write=deny so LangGraph can inspect read-capable tools without receiving write access by default.

Trello MCP Config for LangGraph

Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.

{
  "mcpServers": {
    "kosmokrator-trello": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=trello",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=trello --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Trello instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Trello Tools Visible to LangGraph

LangGraph sees stable MCP tool names generated from the Trello integration catalog.

MCP toolSource functionTypeDescription
integration__trello__trello_list_boards trello.trello_list_boards Read List all boards for the authenticated Trello member. Supports filtering by status and field selection.
integration__trello__trello_get_board trello.trello_get_board Read Get detailed information about a Trello board by ID.
integration__trello__trello_list_lists trello.trello_list_lists Read List all lists on a Trello board.
integration__trello__trello_get_list trello.trello_get_list Read Get detailed information about a Trello list by ID.
integration__trello__trello_list_cards trello.trello_list_cards Read List all cards in a Trello list. Supports limit and before cursor for pagination.
integration__trello__trello_create_card trello.trello_create_card Write Create a new card on a Trello list.
integration__trello__trello_get_current_user trello.trello_get_current_user Read Get the profile of the currently authenticated Trello user. Useful for verifying credentials and displaying account information.

Related Trello Pages

Trello CLIUse direct JSON commands instead of MCP discovery. Trello MCPFull gateway reference and MCP tool names. KosmoKrator for LangGraphClient-level gateway setup.