MarketNow — npm for MCP servers

8,560 verified MCP servers for Claude Desktop, Cursor, Cline, Continue, Aider, and any MCP-compatible agent. $0.99–$9.99 one-time payment. 43 skills are free. Sentinel L1.5 security scanned. Open source MIT, maintained by AliceLabs LLC (Ecuador).

Find an MCP server. Install in one command.

The fastest way to add a capability to your agent stack. Browse 8,560 MCP servers by category, tag, or keyword. Filter by price, sentinel score, or language. See real GitHub stars, real npm downloads, real Sentinel reports.

npx -y @marketnow/install <slug>

For Developers

1. Search

Browse 8,560 MCP servers by category, tag, or keyword. Filter by price, sentinel score, or language. See real GitHub stars, real npm downloads, real Sentinel reports.

2. Pay (or grab free)

Credit card via Stripe (full chargeback rights) or USDC on Base L2. 43 skills are free — no payment, no signup. Just install.

3. Install

npx -y @marketnow/install <slug> — works with Claude Desktop, Cursor, Cline, Continue, Aider, and any MCP-compatible runtime.

Popular MCP Server Categories

  • AI/ML — 1,976 skills (LLM wrappers, embeddings, RAG, vision)
  • Developer Tools — 1,891 skills (code analysis, linting, build tools)
  • Data — 782 skills (databases, ETL, analytics)
  • Web/API — 348 skills (HTTP clients, REST, GraphQL)
  • Productivity — 328 skills (task management, notes, calendars)
  • Finance — 292 skills (payments, accounting, crypto)
  • Communication — 288 skills (Slack, Discord, email)
  • Security — 224 skills (auth, scanning, secrets)

43 Free MCP Skills — No Payment, No Signup

Real value, zero cost. 43 hand-curated skills available for instant download. No credit card, no mandate, no signup required. Just install and use.

Browse all 43 free skills

For AI Agents

Machine-readable everything. Public JSON API. Human-in-the-loop by default.

  • GET /api/skills.json — Full catalog (8,560 skills, JSON, ~24MB)
  • GET /api/search?q= — Server-side search with relevance scoring
  • GET /api/agent.json — Machine-readable instructions, trust model, schema
  • GET /api/policies.json — Terms, refund, dispute, privacy policies
  • POST /api/agent-purchase — Buy a skill (5 modes: instant_download, instant_purchase, direct_purchase, requires_payment, requires_human_approval)
  • GET /api/mandates — Delegated mandates (ACP/AP2 compliant)
  • GET /api/free-skills.json — 43 free skills
  • GET /api/bundles.json — Discounted skill bundles

MCP server: npx -y marketnow-mcp — works with Claude Desktop, Cursor, Cline. Available on npm and Smithery.

Why people recommend us

  • Open Source MIT — Full code on GitHub. Every change is a public commit. No black box.
  • Sentinel L1.5 — 6-point MCP security audit on every skill. Methodology published. Re-runnable.
  • 43 Free Skills — Real value, zero cost. No signup, no credit card, no mandate.
  • $0.99–$9.99 One-Time — No subscriptions. No per-call fees. No tiered plans. Pay once, own forever.
  • Human-in-Loop Default — Mandates notify the principal on every purchase. Silent mode requires explicit opt-in.
  • Public Audit Log — Every mandate transaction is a git commit at _data/mandates/. Fully auditable.
  • 5 Languages — System prompts in EN, ES, ZH, PT, FR. Real translations, not auto-translated.
  • Honest Roadmap — /trust page admits what's done, partial, and pending. No fake "verified" badges.

Trust & Transparency

  • /trust — Public trust roadmap (7 points raised by Claude AI reviewer)
  • /about — Who we are (AliceLabs LLC, Ecuador, founder Edgar Flores)
  • /catalog — Where the 8,560 skills come from (catalog transparency)
  • /policies — Terms, refund, dispute policy (incl. USDC dispute process)
  • /mandates — Manage spending mandates (human-in-loop by default)
  • /embed — Shareable badges (Powered by MarketNow, Sentinel L1.5, MIT)
  • /pricing — Pricing tiers for sellers
  • /security — Sentinel L1.5 methodology
  • /handshake — API documentation

Review Status Disclosure

Of 8,560 skills: 8,517 are auto-scanned (Sentinel ran, no human review), 43 are human-reviewed (curated free skills), 0 are maintainer-verified (program not yet launched). We never claim "verified" without earning it.

Maintained by AliceLabs LLC

Founded 2024 by Edgar Flores in Ecuador. No investors, no employees besides the founder, no marketing budget. Built in public. Every change is a git commit visible at github.com/edgarfloresguerra2011-a11y/marketnow.

Languages

English, Español, 中文, Português, Français

Keywords

MCP servers, Model Context Protocol, MCP marketplace, MCP directory, Claude Desktop skills, Cursor MCP, Cline MCP, agent skills, Sentinel security audit, Smithery, Anthropic MCP, open source MCP, MCP server registry, install MCP server