mcpc MCP Client Skill

Skill by ara.so — MCP Skills collection.

Overview

mcpc is a universal command-line client for the Model Context Protocol (MCP) that maps MCP operations to intuitive shell commands. It enables interactive debugging, scripting workflows, and AI agent integration with MCP servers through persistent sessions, OAuth 2.1 authentication, and JSON output mode.

Key capabilities:

• Persistent sessions: Keep multiple stateful MCP connections alive simultaneously
• Full MCP support: Tools, resources, prompts, async tasks, instructions
• OAuth 2.1: Secure authentication with OS keychain credential storage
• Code mode: JSON output for shell pipelines (jq, xargs, scripting)
• Progressive discovery: Search tools across sessions to save tokens
• MCP proxy: Share sessions across agents while protecting credentials

Installation