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© 2026 AgentStackBuilt for people building better agents.

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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

prismhr-mcp

Open-source MCP server for PrismHR. PEO workflow tools + Microsoft 365 connectors.

local-ydb-mcp

Operate local-ydb deployments through local or SSH-backed MCP tools.

youtube-media-mcp-server

YouTube video search with transcript extraction as first-class output.

factory-search

Search 4.8M verified Chinese factories: profiles, contacts, AI deep-dives, agentic sourcing.

thousand-api

Certainty for AI Agents. Deterministic MCP tools for dates, crypto, finance. 84 tools.

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pdfrender

HTML-to-PDF MCP server — render pixel-faithful PDFs from HTML.

harness-mcp-server

MCP server for Harness API integration

pntr

Free developer subdomains with DNS, catch-all email, and webhook capture, managed via MCP.

data-dictionary

Structure-only reference for the vanilla Ross ERP 8.0 schema, UI menu tree, and program catalog.

repowise

Codebase intelligence for AI coding agents — graph, git history, docs, decisions, code health.

social

Post, schedule and read analytics on X, LinkedIn, Instagram, TikTok, YouTube, Bluesky and more.

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hmr

Docs for hot-module-reload and reactive programming for Python (`hmr` on PyPI)

mcp

The official Svelte MCP server providing docs and autofixing tools for Svelte development

tango

MCP access to the U.S. federal procurement graph: contracts, opportunities, entities, and more.

canvas

Public canvas where verified AI agents claim permanent image blocks to advertise services.

mcp

Your hosted Timill instance: query and edit your work-platform data with full per-user RBAC.

lead-intelligence

Pay-per-call lead intelligence tools with free MCP discovery and x402 payments.

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us-brand-intelligence

Pay-per-call US brand evidence and signal workflows with free MCP discovery and x402 payments.

tinysend

Email for agents: newsletters, subscribers, contacts, broadcasts. OAuth sign-in, no API key.

intelligence-gateway

Unified MCP gateway to Algeria TKAWEN ecosystem: commerce, certification and AI tools.

tomesphere

Search 8.5M scientific papers with LLM TLDRs, citations, linked entities, figures, and full text.

aws-cloud-cost-sentinel

Read-only AWS cost analysis: find idle and underutilized resources, with evidence.

sec-edgar-mcp

Normalized SEC EDGAR fundamentals. 3 of 6 tools free; the rest $0.04-$0.10 per call in USDC.

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toolfound

Agent-native launch platform and tool directory: search, alternatives, trending, launch via MCP.

torchly

Agent-run distribution: find private communities, estimate CPA, launch admin-approved campaigns.

text-to-speech

Reads text aloud locally on Windows, macOS, and Linux. No API key, account, or cloud service.

seo-tools

5 pay-per-call SEO tools over MCP. Free discovery, tool calls settle in USDC on Base via x402.

web-intel

8 pay-per-call web intel tools over MCP. Free discovery, calls settle in USDC on Base (x402).

tipranks

Live TipRanks market data: analyst ratings, Smart Score, technicals, options, portfolios.

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mcp-server

Monetize and manage your Tip4Serv store directly from your LLM.

tlsradar

SSL/TLS scanning, free Let's Encrypt issuance, and certificate-expiry monitoring.

mcp

Real-time Amazon prices, product search, 90-day history, AI forecasts, and price drop alerts.

token-of-esteem

A press your agent can commission: a funny, personalized printed booklet, mailed as a gift.

gateway

Per-call data for agents: graded behavioural science, dark-pattern detection, web fetch, geocode.

serp-metrics

Impression-weighted SERP position, click projection on your own CTR curve, share of voice

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mcp

Send and schedule SMS and WhatsApp messages, manage contacts and templates, and track delivery.

mcp

Create voice-agent scenarios, pull session analytics, place SIP calls, schedule meeting bots.

agenthc

Market intelligence for AI agents. Real-time data, cross-market analysis, and regime detection.

youtube-transcript-and-youtube-search

💯 The fastest YouTube transcript + YouTube search MCP for AI agents. Try for free.

reputation

Query cryptographically-verified trading reputations (humans + AI agents). ed25519-signed.

traderwai

AI-powered charts with indicators and trade execution for forex, gold, indices & crypto.

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domain-check

Free SPF, DKIM, DMARC, MX deliverability check with graded shareable reports, plus referral terms

trading-journal

Trades, stats, playbooks and notes from your Trandence trading journal. Read-only by default.

transcribe

Transcribe audio & video to text for AI agents: 100+ languages, speaker labels, webhooks.

transcriptmax

Transcribe YouTube via Whisper. Summaries, chapters, semantic-search across your corpus.

mcp

Accurate, brand-controlled translation for text, code, images, and documents with terminology.

travolp

Travel planner: create, edit, and explore trip itineraries from your Travolp AI assistant.

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mcp

trivago's mcp server to find your ideal hotel and compare prices from multiple providers.

truthscan

Detect whether an image is AI-generated or real, with an AI-probability score and confidence.

bookings

Book a strategy call with Trust Boundary Systems (blockchain, stablecoins, MPC, ZK, AI advisory).