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.
AI contract scope violation detector. Detect scope creep, draft responses.
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Affiliate attribution and commission data for iOS (StoreKit 2) and Shopify
Self-healing proxy for MCP servers with retry, circuit breaker, and observability
Vehicle specs, federal recalls, and OBD-II DTC reference for AI agents via MCP.
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Open-source causal memory for AI agents: persistent, explainable, MCP-native memory (13 tools).
E-signatures for contracts and NDAs. Draft with AI, review, and send for signature.
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MCP server exposing the Backtest360 engine API as tools for AI agents.
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AI agent tool discovery and scoring. Search 15,400+ MCP servers, APIs, and CLIs.
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Weekly 5-15 reports for executive teams: submit reports, fetch the Friday briefing.
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Sports data across 8 sports under one canonical schema — scores, stats, standings, Elo, odds
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Anchor a content-creation event to the Knox chain; returns a C2PA-aligned, FRE 902-shaped bundle.