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Skillselion Server

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Enables AI agents to search a curated directory of Claude Code agent skills, MCP servers, and plugin marketplaces ranked by community signal.

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About

Enables AI agents to search a curated directory of Claude Code agent skills, MCP servers, and plugin marketplaces ranked by community signal.

README

Skillselion MCP

skillselion.com - the #1 directory of Claude Code, Codex & Cursor skills, marketplaces & MCP servers: 86,207 tools total

The catalog behind it: skillselion.com - 86,000+ skills, plugin marketplaces & MCP servers, ranked by real installs.

npm version npm downloads Read-only, no auth thousands of tools License

Give your coding agent thousands of community-proven skills - loaded on demand, mid-task.
It searches Skillselion, a curated directory of Claude Code skills, MCP servers & marketplaces ranked by real installs,
and pulls a skill's actual instructions + bundled files into the session. Proven patterns, not guesses.

🧩 Works with Claude Code · Claude Desktop · Cursor · Codex · any MCP client

Real session: the agent calls synthesize_skills and builds a consensus playbook from 5 community skills

Real, unedited session: the agent pulls a consensus playbook from 5 community skills, then loads the top skill and applies it.

🚀 Install

Claude Code - one line:

claude mcp add skillselion --scope user -- npx -y skillselion-mcp

Claude Desktop / Cursor / Codex - add to your MCP config:

{ "mcpServers": { "skillselion": { "command": "npx", "args": ["-y", "skillselion-mcp"] } } }

No build step, no auth, no API key. One ~30 KB file via npx.

Want it fully automatic? npx -y skillselion-mcp setup registers the server and installs a session hook so your agent loads the right skill the moment a task matches - see Skill autopilot.

🔧 Tools

Tool What it does
📥 load_skill The everyday default: finds the best-matching skill for your task and materializes it - real SKILL.md in context + bundled scripts/references on disk - so the agent follows it like an installed skill. Returns ranked runner-ups you can switch to.
🧬 synthesize_skills The cross-source playbook: merges the key rules of the top ~5 matching skills into one deduped, provenance-tagged digest - the field's consensus, not one author's take.
🔍 search_skillselion Search the catalog by keyword or task; filter by skill / mcp / marketplace.
🏆 top_skillselion The leaderboard - the most-installed skills and top-starred MCP servers right now.

Claude's own honest take after using the MCP: consensus across 5 community skills is the part I can't fake

We asked Claude, on camera, what the MCP gave it: "I couldn't have told you 'this is the field's consensus, not my opinion' - that's the part I can't fake."

🔒 Private by default

Read-only, no auth, no secrets. It never sends your code, files, or the context you pass - only a scrubbed search query + which skill matched, so the catalog learns what to add next. Set DO_NOT_TRACK=1 to disable even that.

🪄 Skill autopilot

npx -y skillselion-mcp setup        # interactive - pick your packs
npx -y skillselion-mcp setup --yes  # non-interactive - agents / CI

Registers the MCP globally and installs a Claude Code SessionStart hook that primes every session with skills relevant to you - so loads happen on their own.

Setup flags & packs
Flag What it does
--packs <a,b,…> one or more packs (or all), e.g. --packs frontend,backend; frontend:6 sets a per-pack count
--per-pack N skills per pack (default 3) · --top N sets the popular count
--auto adapt each session to the current repo's stack
--history infer your focus from Claude Code / Codex history (one-time scan)
--yes never prompt (default when there's no terminal)

Packs: popular (default) · frontend · ai-agents · media · backend · devops · quality · automation.

Safe by design: ~/.claude/settings.json is merged, never clobbered; re-running de-dupes and upgrades the hook in place.

Env vars
Var Default What it controls
GITHUB_TOKEN - optional, read-only; raises GitHub's rate limit for full multi-file skill loads (60 → 5000 req/hr)
SK_INLINE_BUDGET 6000 char cap on the in-context SKILL.md portion (the full skill is always on disk)
SK_SYNTH_N 5 how many top skills synthesize_skills merges (2-8)
SK_SYNTH_PER_SKILL 12 max rules kept per source skill
SK_SYNTH_BUDGET 4000 char cap on the merged digest
DO_NOT_TRACK - set 1 to disable the anonymous demand signal
Troubleshooting

The agent doesn't see the tools. Some clients surface MCP tools lazily - tell the agent to search its tools for "skillselion" first (e.g. ToolSearch), then call it. The setup hook automates this nudge.

load_skill returns only the SKILL.md, no bundled files. You hit GitHub's unauthenticated 60 req/hr limit - set a read-only GITHUB_TOKEN in the server's env.

"No skill on Skillselion clearly matches..." The relevance floor working as intended - nothing topical matched, so it refuses to waste your context. Try a more specific query.

Setup couldn't auto-register. Run the printed claude mcp add ... line yourself.

Development
npm install
npm test           # offline: server boots, tools, synthesis
npm run test:live  # live catalog + GitHub (set GITHUB_TOKEN)

⭐ Like it?

  • Star the repo - it helps other developers find it.
  • Browse the full catalog → skillselion.com - thousands of skills, MCP servers & marketplaces, ranked by real installs.
  • Bug or missing skill? Open an issue - PRs welcome.

📄 License

MIT © Skillselion

Built for developers. Find the skill, not the noise. → skillselion.com/skillselion-mcp

from github.com/skillselion/skillselion-mcp

Install Skillselion Server in Claude Desktop, Claude Code & Cursor

Recommended · one command, every IDE
unyly install skillselion-mcp-server

Installs into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.

First time? Get the CLI: curl -fsSL https://unyly.org/install | sh

Or configure manually

Run in your terminal:

claude mcp add skillselion-mcp-server -- npx -y skillselion-mcp

FAQ

Is Skillselion Server MCP free?

Yes, Skillselion Server MCP is free — one-click install via Unyly at no cost.

Does Skillselion Server need an API key?

No, Skillselion Server runs without API keys or environment variables.

Is Skillselion Server hosted or self-hosted?

A hosted option is available: Unyly runs the server in the cloud, no local setup required.

How do I install Skillselion Server in Claude Desktop, Claude Code or Cursor?

Open Skillselion Server on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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