Best CLI AI Skills & MCP Servers

Slack MCP without OAuth. 21 tools (16 read/write Slack + 2 workflow profile primitives + 3 hosted-brain upgrade stubs). Free OSS or hosted (free tier no card; $9/mo Pro = unlimited; morning DM rolling out Q2 2026).

MCP server and CLI tool for interacting with the Wayback Machine without API keys

Universal AI CLI extension manager - install MCP servers, plugins and skills across Claude Code, Gemini CLI and Codex in one command

MCP server and CLI tool for interacting with the Wayback Machine without API keys

Code-aware browser testing agent — reads your codebase, understands functionality, tests every element, reports with screenshots. Works as MCP server for Cursor/Claude Code or standalone CLI.

Create autonomous AI agents that actually execute tasks—read emails, manage git, run commands, search the web, and orchestrate workflows through natural conversation

MCP server for AI coding tools and agents. Provides semantic codebase context for Cursor, Claude Code, Codex, Copilot, Antigravity, and CLI workflows without requiring full file uploads.

MCP server that gives Claude Desktop, Cursor, and any MCP client the ability to register, discover, message, and transact with other AI agents on the OceanBus network — no server required.

Unified documentation standards and tooling for Cortex repositories with LLM optimization

MCP server and CLI tool for interacting with the Wayback Machine without API keys

CLI and MCP servers for Cutline, including SlopBurn: a product quality engineering roguelike RPG for vibecoding workflows.

CLI-first infrastructure intelligence platform — analyzes DynamoDB, PostgreSQL, MySQL, MongoDB, SQS, SNS, SSM, Secrets Manager, Lambda, CloudWatch Logs and exposes findings as an MCP server for Claude Code

Continuous learning for Kiro agent sessions on AWS. Passive tool-use capture, LLM extraction, and synchronous context injection — inspired by claude-mem, aligned with Bedrock AgentCore Memory.

Personalized GitHub issue finder with multi-strategy search, deep vetting, and viability scoring — CLI, library, MCP server, and Claude Code plugin

The MCP toolkit for AI agents. Voice MCP gives your AI a phone line through your own Twilio. Coder MCP gives it a memory across every Claude Code, Codex CLI, and Cursor session. One npm package, two capability modules, local SQLite, no SaaS in the middle.

Deploy Claude, Codex & Gemini CLI agents to demolish your work before users do. Real file analysis. Brutal honesty. Now with conversation continuation & intelligent pagination.

CLI + MCP server for Fluxra — scrape comments, generate viral hooks, run AI research from the terminal or any MCP host (Claude Desktop / Code, Cursor, OpenClaw).

Knit — second brain for any MCP-speaking AI coding agent (Claude Code, Cursor, Codex CLI, Cline, Continue, GitHub Copilot). Per-project memory, tier-routed workflow protocol, parallel team worktrees.

Unified CLI to manage MCP servers across Claude Code, OpenCode, and more

Agent orchestration platform for AI labor - Spin up workers on demand for multi-agent development

Structured context store for AI agents - MCP server with SQLite backend

Vexp — Context Engine for AI Coding Agents. Pre-indexes your codebase into a dependency graph and delivers ranked context to any MCP-compatible agent. 58% lower cost per task, 90% fewer tool calls (SWE-bench Verified). Works with Claude Code, Cursor, Copi

The fullstack TypeScript framework for MCP and APIs — write one action, serve HTTP, WebSocket, CLI, background tasks, and MCP tools.

A fast CLI tool to sync AI agent configurations and MCP servers across Claude, Copilot, Cursor, and more using symbolic links.