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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Real-time LLM output verification with 6-dim contract validation and auto-failover across providers.
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Agentic visitor analytics — five tools that hand the next CRO fix to your coding agent.
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Recorded browser sessions, backend spans, and database row diffs as one ranked fix bundle.
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Redfin real-estate for Claude — search, property details, market reports, saved homes
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Open-source MCP server for Zerodha Kite Connect. Portfolio, market data, backtesting, alerts.
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Create scheduling polls, vote, and finalize times from AI agents.
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Structural similarity-based code filter. Stops malicious code pattern reaching execution tools.