About mcps-logger
mcps-logger is an MCP server published by git+mlshv in the AI category: console.log for your stdio MCP server.
The repository has 23 stars and 0 forks, with the last commit a year ago. Six months or more without a commit doesn't mean the server is broken, but check the open issues before depending on it in production.
Install
npx mcps-loggerclaude mcp add mcps-logger -- npx -y mcps-loggernpx -y mcps-loggerThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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README
MCP Server Logger
console.log for your stdio MCP server
Why?
When developing an MCP (Model Context Protocol) server with stdio transport, console.log interferes with the protocol communication.
For example, this is what you normally get in MCP inspector npx @modelcontextprotocol/inspector when calling console.log in your MCP server code:
Error from MCP server: SyntaxError: Unexpected token S in JSON at position 0
Solution
This package patches the console methods (log, warn, error, debug) and redirects logs to a separate terminal.
https://github.com/user-attachments/assets/33ff367e-74b4-48e8-9f04-0bcafbad5e00
Usage
Start the logger in a terminal where you want to see the logs:
npx mcps-logger
Install the logger in your MCP server:
npm install mcps-logger
Add it to your MCP server entry file:
import "mcps-logger/console";
Or if you want to use in development mode only:
if (process.env.NODE_ENV !== "production") {
import("mcps-logger/console");
}
README copy captured when this server was indexed; it may lag the repository. The original is authoritative.