list_credentials

What list_credentials does on n8n MCP Server

AI agents call list_credentials to retrieve information from n8n MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why list_credentials is rated Low

This tool retrieves or queries existing credentials without creating, modifying, or deleting them. The blast radius of misuse is limited to information disclosure of credential metadata. The lack of a description lowers confidence slightly, but the name itself strongly suggests a simple enumeration operation typical of Read-category tools.

From the tool's definition Tool name 'list_credentials' matches the 'list' pattern identified as a Read operation (search, list, get, fetch). No description provided, but the semantic content—retrieving a collection of credentials—indicates data retrieval without modification.

The rule that runs list_credentials safely

PolicyLayer is an MCP gateway: it sits between your AI agents and n8n MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_credentials, this is the rule to start with:

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_credentials": {}
  }
}

Questions about list_credentials