Trello MCP Server

Get Organization Members

get_organization_members

Retrieve all members of a Trello organization by passing its ID or name. Use this to see who belongs to a workspace and manage permissions.

Instructions

Get all members of a Trello organization (workspace).

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "orgId": "<orgId>"
    },
    "name": "get_organization_members"
  }
}

Input Schema

Name	Required	Description	Default
`orgId`	Yes	The ID or name of the organization

Schema Changelog

Changes observed during successful MCP inspections.

First observedv1.2.0Sep 6, 2026

TDQS

B3.4/5.0

Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full behavioral burden. It clearly expresses a read-only intent through the verb 'Get', but does not disclose response format, pagination, or potential limitations. This is adequate for a simple read operation but not rich.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, clear sentence with no filler. The key scope—all members of an organization—is front-loaded and immediately actionable.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a one-parameter read tool with no output schema and low complexity, the description is nearly complete. It lacks only minor context such as expected return shape or differentiation from board-member lookup, but nothing essential is missing to make a correct call.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, and the schema already documents orgId as 'The ID or name of the organization'. The description adds no additional parameter meaning, so the baseline score of 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a specific verb ('Get all') and a clear resource ('members of a Trello organization (workspace)'), so an agent can tell this is an organization-scoped member lookup. It does not explicitly contrast with similar siblings like get_board_members or get_member_organizations, but the org scope is unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives. With siblings such as get_board_members, get_member_organizations, and search_members, an agent is left to infer the appropriate selection context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server