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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

mcp-ethical-hacking

An MCP server that provides LinkedIn & Reddit data

xstocks

Buy tokenized US stocks (xStocks) on Solana via Jupiter DEX in USDC. Daily cap. Dry-run default.

vectorise

Vectorize images to SVG and export to PDF, EPS, DXF, PNG, JPG, or WEBP via Vectorise.Me.

mcp

AI-powered website change monitoring - manage monitors and alerts via MCP.

rosetta-mcp

AI-powered Excel translation preserving formatting, formulas, and data integrity.

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mcp-nano-banana

MCP server for Google Nano Banana (Gemini) image generation

jobs-by-workable

Jobs by Workable MCP server. Access over 150K jobs & thousands of companies listed on the job board.

mcp

Create, search, update, and manage data in OnePageCRM.

exergynet

ExergyNet thermodynamic compute settlement for autonomous agents.

nuzo-memory

Local-first, auditable memory for MCP-compatible AI agents with explicit writes and SQLite storage.

chutes-media-mcp

Generate image, video, music and speech through Chutes and save assets into your project.

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linkedin-api-mcp

Read LinkedIn profiles, companies, jobs and messages via your own browser session

knowledge-cartographer

Knowledge coverage map and health score. Ingest docs into a governed knowledge graph via MCP.

api-testing-mcp

MCP server for API testing. 35 tools: HTTP, assertions, flows, OpenAPI, collections.

claude-chat

Anthropic Claude Messages API MCP server — chat, vision, web search, extended thinking

agentic-compute

Secure Python sandbox for data optimization and Matplotlib rendering via x402 microtransactions.

roblox-studio-mcp

Connect AI assistants to Roblox Studio — manipulate the DataModel with 14 tools

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mcp-mat

Headless Eclipse MAT MCP server for Java heap dump analysis

judgment-pack

Offline JPS validator, conformance tester, and experimental evaluator over stdio MCP; keyless.

pbix-lineage

Bidirectional data lineage graph for Power BI (.pbix) files, from source to display

x402-api

DeFi data API for AI agents — pay-per-call via x402/USDC on Base

filesystem

Secure MCP server for sandboxed filesystem operations with document parsing support.

vectora

AI assistant with RAG, web search, filesystem and memory. MCP sub-agent for Claude Code.

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mcp

Access Bugfender logs, crashes, devices, and user feedback from MCP-enabled clients.

systemdox

Your architecture in your agents' context: checks, specs, ADRs and docs over MCP, at write time.

utility-converter

7 utility tools in here: exchange rate, UUID, hash, Base64, timestamp, calculator, unit conversion.

crawlgraph-mcp

Backlink lookups and competitor gap analysis on Common Crawl's open web graph (4.4B links).

flstudio-mcp-mac

macOS-first MCP bridge for FL Studio using CoreMIDI and FL Studio Python MIDI scripts.

modelmux

Model multiplexer — route tasks to Codex, Gemini, and Claude CLIs with smart routing.

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tar-engine

Audit AI skill safety before you ship. Static, semantic, adversarial, supply chain scans.

mcp-server-template

Production-grade MCP Server Template for TypeScript and Node.js.

ionis-mcp

HF propagation analytics. 175M WSPR/RBN signatures, band openings, solar correlation.

markdown-vault-mcp

Markdown vault MCP server with FTS5 + semantic search and frontmatter indexing

codemesh

Intelligent code knowledge graph for AI coding agents — 71% cheaper, 72% faster

wspr-mcp

WSPR beacon analytics MCP server. Band openings, path analysis, solar correlation.

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sharplens

67 semantic C#/.NET analysis tools via Roslyn: navigation, refactoring, codegen, audit.

comrades-of-war-archive

Search a Spanish gaming-community archive and receive exact x402 page purchase URLs.

qscreener

Screen and score stocks with the Quality Screener engine: filters, custom scores, and history.

token-savior-recall

Structural codebase MCP server with persistent memory: navigate by symbol, recall across sessions.

rephrasy-mcp

Humanize AI text and check AI-detection scores from Claude, Cursor, or any MCP client.

resent

Transactional email for AI agents: templates, domain verify, and sends.

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mcp-server

Model Context Protocol server for Retain: let AI agents query churn risk and act on retention.

prediction-market-mcp

Real-time Polymarket and Kalshi data, cross-platform arb detection, strategy signals

ida-pro-mcp-fusion

IDA Pro MCP fusion with cache queries and multi-binary headless analysis.

linux-mcp-server

MCP server for read-only Linux system administration, diagnostics, and troubleshooting

etapa-mcp

AI cycling coach — training plans and beginner guidance via the Etapa API.

insightsentry_mcp

MCP server for InsightSentry financial data API - market data, options, screeners, and more

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tyrekick

Read and resolve human feedback pinned on your live prototype, straight from your coding agent.

obsidian-regulatory-mcp

Verified, tier-0 regulatory data for AI across 850+ official sources and 50+ jurisdictions.

fenestra-mcp

Render and verify native Rust GUIs headlessly: access tree, query, a11y, screenshots, motion.