How do I install legion?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 55 (Fair). The formula is published on the methodology page.

MCPpedia

legion MCP Server — Install for Claude, Cursor & VS Code | MCPpedia

legion MCP Server

Name: legion MCP Server
Author: faulkj

MCP-native LLM councils for debates, juries, blind panels, refinement, and custom deliberation.

Tools Versions Alternatives

Registryfaulkj

55Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "faulkj-legion-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "legion-mcp@0.8.0"
      ],
      "env": {
        "MCP_TRANSPORT": "",
        "DEFAULT_BASE_URL": "",
        "DEFAULT_API_KEY": "YOUR_DEFAULT_API_KEY",
        "ALLOW_NO_MODELS": "",
        "OPENAI_API_KEY": "YOUR_OPENAI_API_KEY",
        "MAX_ROUNDS": "5",
        "TOKEN_BUDGET": "",
        "DYNAMIC_ROLES": "true",
        "LOG_LEVEL": "info",
        "ASYNC_TOOLS": "false",
        "TRUST_PROXY_AUTH": "false"
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
MCP_TRANSPORT	Yes	Run the installed package over MCP stdio (the binary defaults to HTTP).
DEFAULT_BASE_URL	No	Default OpenAI Responses-compatible API root for model files that omit baseUrl.
DEFAULT_API_KEY	No	Default provider or gateway key for model files that omit apiKey. Secret.
ALLOW_NO_MODELS	Yes	Boot without any config/models/*.json. The package ships only key-free examples, which the scanner ignores, so this must stay true until a real model file exists beside the working directory.
OPENAI_API_KEY	No	Optional. A model file's apiKey may be "env:VAR" to read the key from an environment variable named VAR at startup; name those variables here as needed. The bundled gpt example reads this one. Secret.
MAX_ROUNDS	No	Maximum discussion rounds accepted by a council run.
TOKEN_BUDGET	No	Optional soft cumulative token budget for a council run.
DYNAMIC_ROLES	No	Allow callers to define ad-hoc council roles inline.
LOG_LEVEL	No	Logging verbosity. Logs are written to stderr for stdio safety.
ASYNC_TOOLS	No	Run councils in the background: council tools return a job handle and poll/cancel tools are exposed. Jobs live in process memory only.
TRUST_PROXY_AUTH	No	Bind async jobs to the caller named by X-MS-CLIENT-PRINCIPAL-* headers. Only safe behind an ingress that strips client-supplied copies.

legion MCP Server

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