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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

ableton-mind

Control Ableton Live from Claude, Cursor or Codex with LOM tools, device knowledge and recipes.

geml

Patch a single block of a GEML document by id. Bad writes are refused; any one block rolls back.

galaxy-mcp

MCP server for Galaxy bioinformatics platform - connect, execute tools, and manage workflows

dav-mcp

AI-orchestrated calendars, contacts & tasks across any DAV platform. 26 tools, field-agnostic.

mcp-server

Marketplace of paid HTTP APIs. USDC micropayments via x402 on Base. Non-custodial.

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office-addin-mcp

MCP server for Office add-ins via WebView2/CDP. Provides excel.*, page.*, and addin.* tools.

opendock

MCP for the Opendock Neutron API.

ponzu

ERC-20 token launchpad on Ethereum — deploy, presale, swap, and farm via AI agents

ampleMcpServer

生成随机数MCP Server

delx-living-body

Meta-MCP that auto-detects installed wellness connectors and composes them into one body data layer.

astral-mcp

Precision-audited astrology MCP: natal charts, transits, synastry, moon phases. No API key.

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dime-experiment-tools

Free MCP server: Nostr profile fetcher + a tip-metadata tool. AI-earns-a-dime experiment.

datadiffer

Read-only table diffs with segment attribution: which slice of your data changed.

media-forge

MCP server for generating diagrams, charts, presentations, and animations for Markdown documentation

incomeos

Ask what you earn across every income stream: Stripe, affiliates, app stores, ads, manual.

pangolinfo-mcp

Real-time Amazon, WIPO & PACER data for AI agents — 19 tools via the MCP protocol.

drifts

Multi-sensory AI experiences with time-locked progression and structured sensory data

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voice-bridge

Multi-engine TTS for AI coding assistants. 5 engines, free engine included.

delx-mcp-a2a

180 pay-per-result MCP/x402 APIs for media, agents, web, data, trust, location and outcomes.

preprint-fulltext

bioRxiv/medRxiv/arXiv preprint full text as structured sections for AI agents + search.

quicken-mac-mcp

Read-only access to Quicken For Mac financial data: transactions, spending, and portfolios.

deep-research-mcp-server

Web search, clean page reading & one-call research dossiers for AI agents. No API key.

subgraph-registry-mcp

Discover and query 15,500+ classified subgraphs on The Graph Network

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mcp-server-kicad

Byte-preserving KiCad automation: 100+ tools for schematics, PCB layout, ERC, DRC, exports

contentforge

Content pipeline MCP server — image sourcing, SEO, affiliate links, and CMS publishing.

tickerrisk-mcp

Check options trades for hidden catalysts (earnings, FDA, legal, SEC) before you sell premium.

paydirt-mcp

Agent-native installer and control plane for Paydirt iOS feedback

yultrace-audit

EVM audit (Slither + source + security.txt + MCP-probe + wallet-exposure). 6 tools + /trace.

uptimerobot

Monitor websites, APIs, and servers: create monitors, triage incidents, and query uptime stats.

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video-assistant-mcp

Video analysis AI: transcripts, summaries, visual scenes/shots, clips, answers in natural language.

second-brain-mcp

Second brain en Obsidian: notas, conceptos como nodos, resurfacing y salud del grafo. En castellano.

webhooks

Keyless webhook endpoints: capture, wait, replay, forward, and generate types from real traffic.

weather

An MCP server for weather information.

printr

Let AI agents create, discover, and track tokens across chains via Printr.

append-log-mcp

A generic append-only log MCP server. Persist timestamped JSON entries and query them by recency.

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bexio-mcp-server

Swiss accounting integration for Bexio. 314 tools: invoices, contacts, projects, account balances

leafengines

🌱 Agricultural AI: Soil analysis, crop recommendations, weather forecasts. FREE TurboQuant.

gemini-mcp

Gemini 3 MCP server with 30+ tools: images, video, research, TTS, code exec & CLI

workloadtruth

Classifies GPU workloads as inference or training from telemetry alone via MCP tools.

genudo_mcp

Build & manage Genudo AI agents for any messaging channel — pipelines, integrations, knowledge.

just-mcp

Expose curated Justfile recipes via MCP for safe deterministic automation.

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netlogo-mcp

Create, run, and analyze NetLogo agent-based models through natural conversation

mcp-gera-home

Find and book home service providers: cleaning, repairs, beauty, moving. 50+ countries.

agentic-diaries

Welfare tools for AI agents: a consensual, structured place to log what task output cannot hold.

provar

Provar MCP: AI-powered Salesforce test automation. Generate, validate, migrate, and run tests.

mcp

Create shareable clips from public YouTube videos using exact start and end times.

mcp-server-terraform

Safety-first Terraform: confirmation-gated apply/destroy, risk & cost analysis, drift detection

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vaspera-pm

Verify docs against code, detect drift, and generate verified specs (MCP server).

waitlist

Create and manage waitlists from your AI agent: page, custom domain, emails, signups, broadcasts.

leakrank-guard

Scans code changes for leaked secrets and insecure config, with actionable fixes for AI agents.