Discover skills, MCP servers, and plugins—with compatibility evidence for the agent you use.
18,250+ active tools · Source-synced directory Fresh tools →
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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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Currency conversion + exchange rates: free convert/rates, paid historical & trend analytics.
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Drift-aware cross-agent memory · MCP/A2A · LongMemEval-S 56.6% · 1/15 Zep cost
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上海图书馆开放数据检索 MCP:纪年/家谱/建筑/红色事件/99 个 webapi + 搜韵诗词,支持 stdio 与 HTTP。
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One private, local memory your AI tools share. Cross-model, on-device, never lose a session.
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Live X/Twitter search and AI trend digests. No Twitter API key — pay per call in USDC via x402.
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Cross-protocol agent payments hub. x402, MPP, L402/Lightning. 1551 services indexed.
Text to speech for MCP clients. 23 languages, six voices, every render watermarked.
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MCP server for CashPilot — monitor passive income, bandwidth sharing, and DePIN earnings