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Frequently asked questions

What is AgentStack?+

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.

What is an agent skill?+

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.

How do I install or use a listing?+

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.

Are the listings free?+

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.

Browse taxonomy

Growth & Revenue65

Sales & Outreach16 SEO & Marketing49

Business Operations492

Analytics314 Business Ops178

Build & Ship595

Creative Studio80

Design & Presentations80

Workflows268

#ToolPopularity

janee

Secure secrets proxy for AI agents — manages API keys so agents never see raw credentials.

weather-mcp

US NWS alerts by state and short-term (next 5 periods) point forecasts.

hailuo-mcp

RunAPI MCP server for Hailuo: create tasks, poll status, check pricing.

flux-kontext-mcp

RunAPI MCP server for Flux Kontext: create tasks, poll status, check pricing.

infinitetalk-mcp

RunAPI MCP server for InfiniteTalk: create tasks, poll status, check pricing.

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gpt-image-mcp

RunAPI MCP server for GPT Image: create tasks, poll status, check pricing.

midjourney-mcp

RunAPI MCP server for Midjourney: create tasks, poll status, check pricing.

cannabis-regulatory

Cannabis compliance: US state testing, INCB, Health Canada, EU precursors. Free.

cosmetic-regulatory

Cosmetic safety: NOAEL, MoS, SCCS, 12 jurisdictions. 30K ingredients. Free.

fixme-agent

Real-time AI code quality — 30 validators, 17 languages, 813+ checks

grounder

Web grounding for local & cloud LLMs: search, fetch, token-capped evidence packs, and research.

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cli

Multi-site analytics as tools: GA4, Search Console, Cloudflare edge, PageSpeed, insights.

polymarket-toolkit

Read-only Polymarket data tools for AI agents: profiles, PnL, market scans. No keys, no orders.

hermes-grocy-mcp

MCP server for Grocy household ERP inventory and shopping workflows.

memory-vault

Local-first AI memory layer with hybrid search. Postgres + pgvector. Self-hosted, MIT.

grok-imagine-mcp

RunAPI MCP server for Grok Imagine: create tasks, poll status, check pricing.

claude-flow

AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev.

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triggercmd

Run commands on your computers remotely with TRIGGERcmd.

happyhorse-mcp

RunAPI MCP server for HappyHorse: create tasks, poll status, check pricing.

kci-openapi-mcp

KCI (Korea Citation Index) literature & citation search via REST Open API + OAI-PMH

news-server

获取今日新闻，支持按分类筛选（科技、商业、科学）

agent-guardrail

Deterministic policy firewall for AI agent tool calls - YAML rules, not a fuzzy risk score.

x402-discovery-mcp

Discover x402 APIs by capability, price & trust. Powered by x402Scout.

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showmestepbystep

Search, browse, and cite a 377-tutorial step-by-step how-to corpus from your AI client.

suno-mcp

RunAPI MCP server for Suno: create tasks, poll status, check pricing.

kling-mcp

RunAPI MCP server for Kling: create tasks, poll status, check pricing.

recraft-mcp

RunAPI MCP server for Recraft: create tasks, poll status, check pricing.

figbridge

Free, local MCP bridge for Figma — HTML, CSS, Tailwind, tokens, agent handoff bundles.

gemini-tts-mcp

RunAPI MCP server for Gemini TTS: create tasks, poll status, check pricing.

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runapi-mcp

130+ AI models for image, video, music, and audio — 18 model families, one RunAPI account.

luma-mcp

RunAPI MCP server for Luma: create tasks, poll status, check pricing.

seedance-mcp

RunAPI MCP server for Seedance: create tasks, poll status, check pricing.

browser-agent

MCP server for browser automation with AI agent

multimodal

Multi-provider media generation — images, video, audio, and transcription via a unified interface

verimcp

Transparent MCP proxy that independently re-verifies tool-call claims before the Host trusts them.

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kci-openapi-mcp

KCI (Korea Citation Index) literature & citation search via REST Open API + OAI-PMH

seedream-mcp

RunAPI MCP server for Seedream: create tasks, poll status, check pricing.

gpt-image-2-mcp

RunAPI MCP server for GPT Image 2: create tasks, poll status, check pricing.

qwen-image-mcp

RunAPI MCP server for Qwen Image: create tasks, poll status, check pricing.

nl-openapi-mcp

National Library of Korea holdings search - books, online materials, KDC classification

portfolio

Public portfolio MCP for resume, services, availability, project evidence, and introductions.

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anzenna

MCP server for Anzenna

runway-aleph-mcp

RunAPI MCP server for Runway Aleph: create tasks, poll status, check pricing.

content-intelligence-api

9 MCP tools: extract, analyze, research, compare, monitor, brief. Pay-per-call x402 or subscribe.

topaz-mcp

RunAPI MCP server for Topaz: create tasks, poll status, check pricing.

cycles-mcp-server

Runtime budget authority for AI agents — reserve, enforce, reconcile spend across providers

mcp-relay

RunRelay MCP relay — AI agent threads, HITL confirmations, and travel capability discovery.

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rachio-mcp

MCP server for Rachio sprinkler controllers — schedules, zones, and live watering control

agent-comms

Cross-harness communication mesh for LLM agents — rooms, DMs, presence, and visibility over TCP

qwen-2-mcp

RunAPI MCP server for Qwen 2: create tasks, poll status, check pricing.