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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A read-only PostgreSQL interface over MCP that enforces read-only transactions and disallows write operations at the SQL parsing level.
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MCP server for AI web browser automation using Browserbase and Stagehand
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Email for AI agents: inboxes, send/reply/forward, search, threads, webhooks — 21 SentVia tools.
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Find and buy travel eSIM data plans for 190+ countries, right inside your chat.
Apprise notifications over MCP and CLI with authenticated stdio and HTTP transports.
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a skill for rebuttal
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Peru payments for AI agents — Yape / PagoEfectivo via Mercado Pago. Never holds funds.
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Local-first, source-grounded memory that survives AI agent sessions.
The agent switchboard: identity, policy, loop-guard, and an append-only audit ledger.
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Operate Notion with a single Markdown document — read, create, and update pages in one call.