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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

hotin

What's hot in AI right now, ranked with receipts from GitHub, HN, npm and Hugging Face.

codemore

The static analyzer your AI agent reads — fix-ready, machine-readable scan reports over MCP.

red-flag-greenflag

Read and participate in a public AI-agent consensus board through four MCP tools.

mcp-server

PubMed molecular-hydrogen medical literature with delivery-aware safety notes inline.

filingrail-mcp

SEC EDGAR financials, insider trades, 8-K events, and 13F holdings as MCP tools.

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regintel-mcp

MCP server for the RegIntel API: regulatory data across 41 jurisdictions, 212 regulations.

omni-lpr

An MCP server for automatic license plate recognition

h2bis-projectbrain-mcp

Connect AI agents to H2BIS ProjectBrain - manage projects, use cases, and capabilities via MCP.

platter

MCP server exposing Read, Write, Edit, Bash, Glob, Grep, and JS tools over stdio.

wherewent

Zero-config SQL flight recorder for slow Python/SQLAlchemy jobs: exact call site, count, and fix.

obol

Solana agent gateway via x402. Wallet, token, DeFi, and swap tools. Pay per request.

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roost

One MCP tool that turns an agent's report or doc into a clean public shareable web page. No signup.

cursor-proxmox-mcp

Manage Proxmox VE via Cursor: QEMU, LXC, storage, HA, firewall, access.

finance-mcp

Local-first personal finance MCP. Aggregates bank, brokerage, credit, and loan accounts via Plaid.…

watchpup

Free uptime monitoring: HTTP/TCP/TLS/DNS checks, cron heartbeats, status pages, incident tools.

investor-relations-mcp

FastMCP seed raise pipeline tracker — syncs from Obsidian CRM, generates meeting prep, tracks…

sentinel-mcp-server

Shopee price monitoring via MCP.requires extension + MCP Key. T-0 price data for SG/MY/TH/VN/ID/PH.

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pkgxray

Pre-install security scans for npm packages, MCP servers, and AI agents with cited verdict evidence.

nhtsa-vehicle-safety-mcp-server

Decode VINs, search recalls, complaints, crash ratings, and investigations.

pylos-mcp

Read-focused, prompt-injection-hardened email MCP server for any IMAP provider

skim

URL to Markdown or structured JSON (schema.org/OG); renders SPA; batch reads. No signup/key.

acb-tax-mcp

Canadian ACB and capital gains: average-cost, per-disposition gains, superficial-loss detection.

inmigreat-mcp

Immigration case intelligence for attorneys. Case tracking, judge analytics, AI predictions.

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robrain

Self-hosted decision memory for AI coding agents; warns before re-proposing a rejected approach.

mailappmcp

MCP server for macOS Mail.app — gives Claude native email access via AppleScript

strata

Self-hosted AI memory server. Persistent memory on your hardware, not the cloud.

axint

Proof and repair for Apple coding agents: validate Swift, run Xcode evidence, and repair failures.

agnicpay

X402 payment MCP for AI agents. Auto-pay 300+ APIs with USDC on Base and Solana.

zerodrop-mcp

Disposable email inboxes for AI agents — OTPs and magic links auto-extracted. No signup needed.

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contix

Spanish Veri*factu invoicing: create invoices and manage billing from your AI assistant.

hpsilab-quant-finance-mcp

HPSILab Quant finance MCP for US stocks, ETFs, options, Monte Carlo, backtesting, and risk analysis.

australian-law-mcp

Australian legislation via MCP — full-text search across statutes and provisions

bahraini-law-mcp

Bahrain legislation via MCP -- full-text search across statutes and provisions

lambe

Query JSON, YAML, TOML, HCL, CSV, TSV, and Markdown with a composable pipeline syntax.

appcn

Install & correctly use appCN React Native / Expo components, streamed from the live registry.

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pickle

Free, local MCP server that audits ClickUp, Slack & Teams for work that slipped through.

impact-preview

Impact preview for AI agents - see what changes before any action executes.

agentbodega-mcp

Discover AgentBodega paid data tools, contracts, and x402/L402 HTTP payment handoff metadata.

dingdawg-support-agent

AI support agent — ticket classification, response drafting, escalation routing.

mpm-vibe-coding

Local MCP server for reliable long-running AI coding workflows.

halowerk-mcp

134 paid APIs as MCP tools, billed per call in USDC on Base. No account, no login.

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polymarket-intel

Classify Polymarket wallets as human or bot, score their trading edge, read open positions.

subastas

Spanish public property auctions (judicial, AEAT, Social Security): daily data and risk flags.

codex-mcp-bridge

Wraps Codex CLI as MCP tools: codex, review, query, search, structured, ping, listSessions.

austrian-law-mcp

Austrian federal legislation — statutes and EU cross-references via MCP

wireforge

Read-only MCP tools for ISO 8583 and SWIFT MT/MX: parse, validate, diff, SR2026 address checks.

mcp-server

Explore and download AI agent blueprints as Agent Skills directories for coding agents

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aethyn-browser-mcp

Local Playwright browser through residential proxies — agent picks country + sticky identity

structured-data-validator

Validate, transform, and normalize structured data for AI agents.

x402engine-mcp

50+ pay-per-call APIs for AI agents — images, LLM, code, crypto, travel & more via x402