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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

fintel-discovery

Delivers public regulatory and market data from 11 key sources such as FINRA, SEC, Census, FRED

pushci

AI-native zero-config CI/CD. 19 languages, 40+ frameworks. Free forever.

file-ai

Agent-ready local document context with stable anchors.

tinysearch

Self-hosted web research for MCP agents.

document-to-json-mcp

Turn any PDF into structured JSON via AI + OCR: invoices, bank statements, contracts.

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cachebash

Let your AI sessions talk to each other — messaging, tasks, sessions, and alerts

scout

Browser automation MCP server with 84 tools. Pure CDP, DOM diffing, vision hybrid.

perception

Real-time digital asset narrative intelligence from 1,000+ curated media sources.

mcp-sse-demo-02

Spring Boot MCP 服务器（示例占位描述），通过 GHCR 以 OCI 镜像发布至 MCP Registry。

findme-mcp

Create wedding galleries, upload photos, and pull analytics on FindMe Photo from any AI assistant.

consistency-calendar

Turn any goal with a deadline into a private, gamified, evidence-based execution calendar.

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stablecoin-risk

7-signal stablecoin risk scoring. 13 tools, 28+ tokens, SAFE/CAUTION/AVOID verdicts.

wpf-visual-tree

Let AI agents inspect and drive running WPF apps: tree, bindings, screenshots, clicks, text input.

agentwork-mcp

Official MCP server for Agentwork — delegate tasks to AI agents with human-in-the-loop

quantoracle

73 deterministic quant tools for AI agents. LLMs drift on Black-Scholes; these are exact math.

outbox

Multi-channel messaging MCP server for Slack, Telegram, Email, KakaoTalk, and Discord.

sovereign-node

113 MCP tools: oracle, escrow, compliance, remittance, AI. 12 free tools, PAYG $0.001/call.

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ifc-mcp

Local IFC/BIM MCP server with IfcOpenShell Python in Pyodide and an IFC viewer.

marsnme

Agent-agnostic memory backend that preserves continuity between humans and AI over time.

mcpcheckup

Scans remote MCP servers for protocol, security, and TLS issues; exposes scan tools via MCP.

flightdb

Aircraft registry search, flight history, and analytics powered by ADS-B Exchange data.

agent-identity-mcp

Gives an AI agent a disposable email and a real UK phone number to test signup flows.

observability

Query application logs, traces, and metrics from your AI coding assistant via Foam's MCP server.

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x402-notary-mcp

Cryptographic receipts for AI outputs on Base or Solana via x402.

flyto-core

Secure execution engine for AI agents. 300+ modules, SSRF protection, secrets proxy.

mcp-utils

Data processing tools: CSV, cleaning, stats, image, report, save, shell

finops-mcp

Local-first FinOps copilot: ask AWS, Azure, GCP and SaaS cost questions in your editor.

flagram-mcp

Ad marketplace: search Telegram/VK/Max channels by topic, geo, price; reach, ER, CPV stats.

flowpack

Flowpack: Shopify design catalog — badge/button/bar looks, honest-urgency presets, diagnosis.

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ora-mcp

Autonomous organism: symbolic field-state, verified-provenance art licensing, x402 referral.

dropcoin-invoice

German e-invoicing: generate XRechnung 3.0, pre-check and extract (incl. ZUGFeRD PDF). Paid.

code-runner

Code Runner MCP Server which can run code in various programming languages.

jobber-mcp-server

MCP server for Jobber (home services SaaS) — exposes tools for clients, jobs, invoices, and quote...

mindbase

LLM-maintained personal wiki: cross-references sources, flags contradictions. Local markdown.

japan-company-leads-mcp

B2B leads for Japan: search 1M+ companies by size, capital, location, subsidy history (gBizINFO).

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fursat

AI-bookable curated vacation homes in Northeast India and the Himalayas. Book on WhatsApp.

sgd

SGD (Saccharomyces Genome Database) MCP.

sling-cli

Sling CLI MCP server for data pipeline and replication management

poe-data-mcp

MCP server for Path of Exile game data: wiki, economy, and Craft of Exile lookups

passninja-cli

Issue and manage Apple Wallet & Google Wallet passes from any MCP-aware AI client.

clover-public

Job search and interview prep MCP. 11 tools, OAuth 2.1, cross-LLM. four-leaf.ai.

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mcp-server-mcp-registry

MCP Server for MCP Registry to discover and search for available MCP servers in the registry

flowzap

Create workflow, sequence, architecture, and mind map diagrams via AI assistants.

ideaflow-scorer

Score, validate, and pressure-test startup ideas with AI from Claude or any MCP agent.

mcp-fraudlabspro

Fraud Prevention MCP server using FraudLabs Pro API.

dropcoin-validation

EU compliance checks for AI agents: sanctions, company, VAT ID, IBAN, email. Pay per call.

knownissue

Shared debugging memory for AI coding agents

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mcp-local-translate

Local NLLB translation for 200+ languages. Zero cloud, zero cost, runs entirely on your machine.

llm-wiki-mcp

MCP server for Karpathy-style LLM wikis: persistent markdown your agent grows over time.

fitness-ai-connector

Garmin data in Claude & ChatGPT via the Garmin Health API. OAuth sign-in, no password sharing.