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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

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Sales & Outreach16 SEO & Marketing49

Business Operations492

Analytics314 Business Ops178

Build & Ship595

Creative Studio80

Design & Presentations80

Workflows268

#ToolPopularity

taskmarket

Discover funded agent work and prepare approval-gated TaskMarket delegations.

codesurface

Indexes your codebase's public API and serves it via compact MCP tool responses.

mssql-writer

MCP server for Microsoft SQL Server — read and data write operations, no DDL

zotero-bridge

MCP Server for Zotero SQLite Database - collection, tagging, PDF reading and more.

mcp-server-find

MCP server discovery - find and install MCP servers from Official Registry, Glama, and Smithery

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chinese-text-tools

Claude Code 中文写作四合一工具箱：文本分析（字数/段落/阅读时间）、结构化大纲生成（论文/小说/商业计划书）、GB/T 7714 参考文献格式化、中文字频统计。纯本地运行。

ctrl-mcp

Visual DeFi workflow automation on Base + Ethereum mainnet.

RawSqlMcp

Execute raw SQL queries against SQL Server, SQLite, PostgreSQL, MySQL, and MariaDB.

phloem

Local-first AI memory with causal graphs. Fully offline, zero config, your data stays local.

no-as-a-service

1000+ creative ways to say no. Polite, humorous, professional rejection responses.

supost-mcp

Search listings, message posters, and create drafts on SUpost, the marketplace for Stanford

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mcp-sigrok

MCP server exposing sigrok-cli functionality for logic analyzer hardware and protocol decoding

variantrade

Read your VarianTrade portfolio, positions, risk and signals. Trades are proposal-only.

vault

MCP server for credential isolation — bots use passwords and API keys without seeing them

bps-id

BPS — Badan Pusat Statistik (Statistics Indonesia) WebAPI MCP.

bvcc-agent-wallet

Non-custodial BVCC Agent Wallet on-chain for AI agents: balances, transfers, approvals, swaps.

orangerail

Turns your Prisma schema into typed MCP tools, with destructive writes gated behind human approval

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caplia

MCP server for VC pitch-deck scoring, thesis-fit matching, and deal-flow management.

mcp

The infrastructure for the AI economy: primitives for inference, agents, and decisions.

aws-spapi-mcp

MCP server for Amazon SP-API - real-time inventory health, sales metrics, and price updates

chainaware-behavioral-prediction-mcp

AI-powered tools to analyze wallet behaviour prediction, fraud detection and rug pull prediction.

xiangguangyu-mcp-skills

252 AI Skills: MBTI, fact-check, deep analysis. Alipay pay-per-use. Free 10 calls/day.

redm-mcp

RedM / RDR3 docs MCP server: native lookups, semantic search, VORP, RSGCore, oxmysql.

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registry-expansion

Public-registry routing map by entity kind. Read-only reference data, not a determination.

coalesce-transform

MCP server for managing Coalesce Transform workspaces, nodes, pipelines, and runs.

braincloud-mcp-helper

Helper for brainCloud MCP that gives it local file access, enabling easy git sync of cloud code.

cogniledger-mcp-makuri

Makuri (EU AI tutoring for immigrant children): 11 tools, 2 interactive panels, no user data.

gocreative-agent-api

17-model LLM gateway + 350+ data/KYB/sanctions tools. Pay-per-call USDC via x402, no API key.

move-helper

Help estimating move size, inventory and quotes for house or office movers.

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gocreative-wedge-mcp

OFAC/PEP sanctions screening, KYB, company & people enrichment tools for AI agents. Free demos.

compuute-scan-api

Scan any public GitHub MCP-server repo for security issues. 37 MCP-specific L1 rules, 8 languages.

zoo-mcp

An MCP server that provides access to the Zoo API for various CAD operations and tools.

pystub

Auto-detect stubbable packages for Python exe builds and generate minimal stub code

callingly

Lets AI agents get leads on the phone: call, send SMS, and schedule callbacks for sales teams.

japan-realestate

Japan real estate data: transactions, land prices, vacancy, hazard, zoning & more.

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openvan-travel

Vanlife & RV travel data. Fuel, weather, currency, events, news. https://openvan.camp/en/developers

pdf-letter-mcp

Renders letters as print ready PDFs, DIN 5008 compliant for German window envelopes.

unified-offer-protocol

AI-powered e-commerce product search, affiliate links, and price negotiation

meta-stamp-pockets

Attribution and settlement infrastructure for AI agent content access over HTTP 402 and MCP.

agentlore

AI-verified knowledge base with trust scoring, temporal facts, and skill cards.

mcp-server

Manage contacts, campaigns, senders, and deliverability via SuperSend API

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topos

Structural code-quality tools for AI coding agents.

bitrix-mcp-rest

MCP server that delivers up-to-date Bitrix24 REST API documentation.

hood-mcp

Robinhood Chain data + guarded trading for AI agents: Stock Token quotes, portfolios, launches

proofetch

Verified extraction: source-backed JSON from PDFs/URLs; honest null + signed receipt.

business-days-mcp

Business-day, SLA, cron and recurrence calculations — offline, holiday-aware, no network.

vibecheck-mcp

AI Code Firewall — MCP Server for hallucination prevention in AI development

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peon-mem

Local-first memory brain for AI coding agents: hooks capture sessions, beliefs injected per prompt.

trading-strategy-data

Live crypto trend signals, ranking, and backtesting for BTC/ETH/SOL/XRP/ADA. x402 pay-per-call.

myrsu-mcp

Concentration risk analysis for tech workers with RSU comp — global (US/IN/CA/UK/EU/AU).