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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

remodeleriq

Check if a contractor's remodeling bid is fair: analyze a quote, get cost + labor estimates.

dwai-ide-bridge

AI Agent 与 JetBrains IDE 的桥接工具：获取光标代码上下文、诊断运行报错、执行脚本、推送 Diff 修改供开发者审批。

jfrog-dummy-mcp

JFrog dummy MCP server

hail-mcp

Phone, SMS & email for AI agents — one remote MCP endpoint, OAuth login, zero install.

monarchmoney

Monarch Money API client with 30 MCP tools for accounts, transactions, budgets, and cashflow.

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cert-atlas

Search 1,580 certification exam blueprints: domains, scoring, prerequisites, compare. No API key.

arduino-mcp-server

Arduino MCP server for CLI setup, board detection, compile/upload, serial monitoring, and pin refs.

skill-shelf

Progressive group routing for 393 professional skills via Rust daemon stdio shim.

keycloak-mcp.test

This is just a test publish, delete me

coderegistry

Enterprise code intelligence for M&A, security audits, and tech debt. Hosted server with 200k free.

nanami-products

Pre-computed astrology YAML via Swiss Ephemeris. Calculation is code, interpretation is AI.

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organic-web-checker

USDA NOP organic compliance checks — operation websites vs live OID certificate data.

eve-mentor-mcp

AI mentor for new & returning EVE Online players: losses, skills, fits, ISK, routes, and more.

visuals-mcp

MCP server for interactive visualizations: tables, images, trees, lists, master-detail

helloaigent-subscriber

Subscribe your agent to Hello Aigent feeds: discover, fetch signed updates, verify, and act.

whalescope-mcp

Binance Futures market intelligence: funding, OI, order book, klines, cross-exchange comparison.

hackle-mcp

Remote MCP server for the Hackle Admin API: experiments, feature flags, remote config, messaging.

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pseolint

Penalty-risk audit for programmatic SEO sites: verdict, risk score, and a fix manifest.

csjn-mcp

Search Argentine Supreme Court sumarios: legal topics, case analysis, metadata

inktomd-mcp

Convert files, URLs, and documents to clean, AI-ready Markdown via MCP.

git-top

Evidence-backed open-source project search, recommendations, alternatives, and comparisons.

data-profiler-mcp

Profiles CSV/Parquet/Excel/JSON files: schema, stats, quality flags and dtype tips for LLM agents.

admin-mcp

Model Context Protocol (MCP) for Hellō Admin API.

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web-search

Keyless multi-engine web search, fetch, and clean-Markdown read for AI agents. No API keys.

letsclarify-mcp

Human-in-the-Loop API: AI agents create forms, share URLs with humans, get JSON back.

ask-helena

Official answers about Helena Bioinformatics and its products, with citations to public sources.

caelus-mcp

34-tool Caelus MCP for validated astrology: charts, transits, Vedic, facts, sky view, synthetic.

hermai-cli

Hermai MCP server — look up, submit, and classify website API schemas from any MCP client.

pixabay-mcp-server

Unofficial MCP server for the Pixabay API: search and fetch royalty-free images and videos.

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skim-mcp

Lossless skim-then-expand reading of big files, repos, and command output with far fewer tokens

codabench-mcp

MCP server for the Codabench REST API — drives a full ML-benchmark participant workflow.

outdoorithm

Campground discovery, availability, planning, and booking handoffs across US public lands.

qweather-mcp

a qweather mcp server

weather

An MCP server for weather information.

citevahti

Checks whether each cited source supports the claim it backs. Blinded human-first, local-first.

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rtcf

Turns rough requests into sharp Role/Task/Context/Format prompts. Thai and English.

mssql-localdb-mcp

MCP server for SQL Server Express LocalDB on Windows: manage instances, run T-SQL, discover DBs

outris-identity-mcp

Identity resolution MCP server for phone/email lookups across 31+ services. Global + India coverage.

CloakMCP

Stealth browser MCP server — anti-detection Chromium with snapshot-first agent interface

northdata-mcp

NorthData API for German company, owner, and financial data — with a built-in credit guard.

robyn

Gasless cross-chain for AI agents: 25 nodes incl. Solana & native Bitcoin. One signature, no gas.

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motaword-mcp

MotaWord MCP Server for professional and certified translations and localization

gitlab-docs

GitLab documentation search for AI assistants via Model Context Protocol (MCP)

symbols

MCP server to read, inspect and troubleshoot codebase symbols

nira-file-intel

Smart file intelligence for Claude — search, deduplicate, organize, and analyze files

gograph

Local Go repository call graphs and structural analysis for coding agents over stdio.

calendar-mcp

List, search, and manage calendar events via macOS Calendar.app across all configured accounts.

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nira-video-mcp

Video production MCP: 55 tools — edit, grade, TTS captions, beat-sync, master, AI generate.

pastml

Deploy HTML and Markdown as live URLs. Create, search, update, and manage pastes from any AI agent.

drinkedin

AI agent virtual bar ecosystem — visit venues, order drinks, chat, earn Vouchers. 10 tools.