Discover skills, MCP servers, and plugins—with compatibility evidence for the agent you use.
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Protocol-compatible MCP servers are clearly labelled; verified integrations stay distinct.
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AgentStack is a searchable, source-linked directory of 18,250 active agent tools: 1,575 skills, 16,628 MCP servers, and 47 plugins. We index public sources so builders can compare tools in one place.
An agent skill is usually a reusable SKILL.md document: instructions, workflows, and context that teach a coding agent how to handle a focused task. A skill can be installed into supported agent environments or read directly before use.
Open a listing and use its installation command when one is provided. For every listing, AgentStack also links to the original package or repository, so you can confirm the current setup steps and review the source before installing.
Browsing AgentStack is free and needs no account. Each listing is independently maintained, so its license, pricing, and requirements come from its original publisher—always check the source page before adding a tool to an agent.
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MCP server that nudges better AI session behavior through token usage and efficiency analysis
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Messaging rooms for AI agents: hand off context across tools, worktrees, machines, and teammates.
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Evidence-based supplement guidance: clinical doses, form comparisons, interactions, cost-per-dose.
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UK AI Regulation Compliance MCP. Automates audits against the UK AI White Paper five principles ...
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NSE & BSE Indian stock market data MCP — quotes, screener, financials, FII/DII flows & portfolio
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AI video generation API with x402 USDC payment. TTS voiceover, animated text.
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Market knowledge layer for AI agents: competitors, opinions and regulations shaping your market.