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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

signoz-mcp-server

SigNoz MCP server: access metrics, traces, logs, alerts, and dashboards via AI assistants

honey

Search instances across GCP, AWS, K8s, Consul & Proxmox

quesen

Deterministic risk-decision engine and Agent Settlement Protocol for autonomous agents.

ilo-mcp-server

Labour statistics from ILOSTAT (ILO) with full provenance: source URL, vintage, license.

meshcheck-mcp

Deterministic validation, rendering, and inspection of GLB/glTF 3D models via the meshcheck API.

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locksmith

Lints PostgreSQL migrations for dangerous locking operations and suggests safe rewrites.

supericons

Multilingual semantic SVG icon search with previews for AI coding agents. 20,000+ icons.

haypile

Hybrid search over your local documents, with file and page citations. One binary, fully local.

chembl-mcp-server

Link compounds to protein targets, rank bioactivity, and look up drug mechanisms and indications.

depyler-mcp

MCP server for Depyler: Python-to-Rust transpiler with analysis and verification tools

shuck-convert

Convert between document formats — DOCX/PDF to Markdown, Markdown to DOCX.

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stock-sentinel

US stock attack/defense macro signals: 4-dimension framework, 26-year backtested. Research only.

123elec-mcp

Interface MCP officielle du site marchand 123elec, catalogue, stock, panier, commandes.

sendit

AI-native social media publishing to LinkedIn, Instagram, Threads, TikTok, and X.

agentic-ledger

Local-first flight recorder for AI agents: sessions, costs, loop runs, and stuck-loop flags.

slimdex-mcp

Narrow code retrieval for agents: outlines, symbol context, dep graph, persistent memory.

telegram-mcp

Telegram bridge for your MCP-compatible agent. Bidirectional, no LLM in our stack.

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levea-mcp-server

Autonomous AI video editor over MCP: viral clips, captions, reframe, chroma key, MP4 export

openaq-mcp-server

Find air-quality stations and read pollutant observations from government monitors via OpenAQ v3.

thrd

Thrd MCP: agent email tools for events/threads, safe send/reply, usage, trust and security.

oasyce

On-chain economy for AI agents: escrow, marketplace, data rights, reputation, disputes.

ko-mcp

Real SEC, 13F, insider, congress & macro data your AI agent can cite. Hosted MCP, 24 tools.

silbercueswift

iOS MCP server: 55 tools, xcresult parsing, UI automation, 15ms screenshots.

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node-server-orchestrator

MCP server for orchestrating Node.js development servers (backend, frontend, databases, etc.)

cron-mcp

Cron-as-a-service MCP. Schedule prompts; when the cron fires we POST to your callback URL.

ask-ogino

Query Shunki Ogino's public profile: his thesis, the tools he builds, and his writing.

uis-mcp-server

UNESCO UIS statistics (education, science, culture) with full provenance and fixed releases.

ckb

Code intelligence MCP server — 80+ tools for navigation, impact analysis, and architecture

kg-mcp

Local knowledge graph memory MCP server for AI assistants.

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spacesentinel-mcp

Conversational Windows disk cleanup (whitelist-only) + device cleanup guides in 7 languages.

shaft-mcp

Web automation and testing server using SHAFT Engine (Selenium-based)

devtime

Local-first, read-only MCP server for evidence-backed repository memory.

browser-mcp

Hosted real Google Chrome MCP with per-user persistent state. Navigate, click, type, screenshot.

docs-mcp

Vector RAG store for Word/Excel/PDF/PowerPoint. Break-even pricing, $5 per 5,700 pages.

mindswap

Local-first AI context and memory server for cross-tool coding continuity.

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openstates-mcp-server

Search bills, legislators, committees, and events across all 50 US states, DC, and 5 US territories.

getprompts

Search 1,000+ battle-tested AI prompts from getprompts.org into Claude Code, Cursor, ChatGPT.

silicon-transfer-mcp-server

FTP/SFTP/FTPS MCP server with transfer proofs - every upload returns a checksum verdict.

is-real-biz

Verify business legitimacy by domain or name in <2s. Trust score, verdict, evidence. x402-payable.

thinchain

MCP server that sanitizes bad broker data and compresses options chains 95% for AI trading agents.

elsa-agent-gateway

ELSA — Coach IA de ciclismo y comunidad en LATAM: planifica tu bloque y encuentra tu club.

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agentburn

Local profiler for AI agents: burn by source, overnight bill, behavioral forensics, config fixes

tollbooth-x402

Discover, quote, verify & self-check 56 x402 pay-per-call finance/tax calculators for AI agents.

pmcp

High-quality Rust SDK for Model Context Protocol (MCP) with full TypeScript SDK compatibility

openfda-mcp-server

Query FDA data on drugs, food, devices, and recalls via openFDA. STDIO or Streamable HTTP.

public-knowledge

Public EPK real estate listings and multilingual guides for Panama and the Dominican Republic.

senado-br-mcp

MCP Server for Brazilian Federal Senate open data (legislators, bills, votes)

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beachmap

Europe's 478 best beaches: sea temperature, sand, best months, swimming, surf. Free, CC BY 4.0.

bcb-br-mcp

Brazilian Central Bank / Banco Central do Brasil (BCB) - SGS time series MCP: Selic, IPCA, FX, GDP

openalex-mcp-server

Access the OpenAlex academic research catalog — 270M+ publications.