Best AI Agents for Skills, Plugins & MCP 2026
As of Oct 3, 2026, KanonAgent tracks 1324 AI agents in AI Agent Skills & Plugins; this page covers the top 14 by real traction, led by Stealth Venture ($324k/mo revenue). We only publish a page when at least 5 real products qualify.
These agents focus on adding skills, plugins, and MCP connectivity to coding workflows in Claude Code, Cursor, and similar IDEs. The space is shifting toward plug-and-play marketplaces, hosted MCP runtimes, and multi-agent harnesses that let developers compose custom capabilities without rebuilding from scratch.
Updated 2026-10-03 · 14 products · live data from KanonAgent
1. Stealth Venture$324k/mo revenue
Stealth Venture provides a hosted MCP server for secure external tool access, suited for teams automating cross-system tasks at scale.
2. ECC271.7k upvotes
ECC optimizes AI coding tools like Claude Code and Cursor with skills, memory, and research harnesses for reliability-focused developers.
3. Agent-Reach89.3k upvotes
Agent-Reach adds zero-cost internet search across Twitter, Reddit, GitHub and more via CLI, ideal for agents needing broad external context.
4. open-design87.1k upvotes
open-design delivers an open-source SuperAgent framework with sandboxes, subagents and tools for long-horizon autonomous projects.
5. orca84.1k upvotes
orca orchestrates fleets of parallel custom coding agents across desktop and mobile, for developers managing multiple subscriptions.
6. deer-flow83.3k upvotes
deer-flow brings Gemini directly into the terminal for code generation and debugging without leaving the CLI.
7. ruflo73.8k upvotes
ruflo enables multi-agent swarms with adaptive memory and self-learning workflows for complex orchestration needs.
8. career-ops69.7k upvotes
career-ops runs locally in AI coding CLIs to scan jobs, tailor CVs and track applications for individual developers.
9. cherry-studio52.3k upvotes
cherry-studio offers 300+ assistants and autonomous agents in one studio for unified LLM access and productivity tasks.
10. CowAgent47.2k upvotes
CowAgent is an open-source harness that plans tasks, runs tools and evolves with memory across multiple models.
11. herdr42.0k upvotes
herdr supplies a safe runtime for coding agents to execute code, invoke tools and manage state during development.
12. agents40.2k upvotes
agents acts as a plugin marketplace for adding plug-and-play agents to Claude Code, Copilot and Cursor.
13. oh-my-claudecode39.5k upvotes
oh-my-claudecode orchestrates multi-agent teams for Claude Code with task decomposition and context management.
14. QwenPaw35.4k upvotes
QwenPaw deploys a local extensible AI assistant supporting multiple chat apps and custom capabilities on-prem.
What the data says
Computed from our index over the 14 products on this page; judgement fields are left blank where we cannot read them (methodology).
AutonomyL2 × 5 (5/14 judged)
Prerequisitesopen source × 13 · self-hostable × 4
Common integrationsClaude Code × 3
In the index since2026-07-08 — 2026-09-28
Ranked by real traction from our index — not editorial picks, and no paid placement. Every judgement field requires a source quote; where we cannot read it, we leave it blank. Full criteria, thresholds and known limits: methodology.
How to choose
Match autonomy level first: terminal/CLI agents like deer-flow suit quick local use while harnesses like ruflo or orca handle fleet-scale orchestration. Prioritize MCP and plugin support—Stealth Venture for hosted secure access, agents for marketplace plug-ins. Check open-source vs hosted pricing and integration depth with your IDE; avoid agents lacking memory or tool-calling if long-running tasks are required. Test runtime safety features like herdr before production use.
FAQ
Which agent adds MCP server support for external tools?
Stealth Venture is the only hosted MCP option listed, focused on secure cross-system automation.
How do I add plugins to Claude Code or Cursor?
Use agents for its marketplace or ECC and oh-my-claudecode for skills and multi-agent orchestration.
Are there open-source harnesses for custom skills and memory?
open-design, CowAgent, ruflo and herdr all provide open frameworks with tools, memory and execution runtimes.