# skillbox

> Updated 2026-09-18 · type: tool · category: mcp-agents · status: active · rev 1

skillbox is a self-hosted store for versioned agent skills, served over MCP with key auth, so scattered markdown skills live in one place any agent can pull.

- Open source: yes (MIT)
- Self-hostable: yes
- Pricing model: free
- Best for: A builder whose agent skills have piled up as loose markdown across repos and machines, who wants one self-hosted, versioned source of truth that agents reach over MCP instead of re-pasting the same instructions everywhere.
- Last verified: 2026-09-18

- **Canonical:** https://gtmstacker.com/registry/tool/skillbox/
- **Source:** [github · kitze/skillbox](https://github.com/kitze/skillbox)
- **Tags:** mcp-agents, agent-skills, self-hostable, mcp, developer-tooling
- **Repository:** https://github.com/kitze/skillbox

## Is skillbox open source?

Yes, skillbox is open source under the MIT license.

## How much does skillbox cost?

skillbox is free to use.

## Can I self-host skillbox?

Yes, skillbox can be self-hosted (the source is available under the MIT license).

## Alternatives & related

- [Bastionskill](https://gtmstacker.com/registry/tool/bastionskill/)
- [OpenWiki](https://gtmstacker.com/registry/tool/openwiki/)


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MIT self-hosted store for AI-agent skills (TypeScript) that keeps your scattered markdown skills versioned in one place and serves them over MCP with client-key authentication, so any agent can pull the skill it needs instead of you copy-pasting instructions between projects. It runs via Docker with no mandatory paid dependency; optional skill-recommendation features can use a paid AI provider but are not required for the core.

## Provenance

- MIT, TypeScript, ~153 stars, ~7 commits, Docker self-host, MCP and client-key auth independently WebFetch-verified on the repo 2026-09-18 (github.com/kitze/skillbox, by Kitze).
- Surfaced via the 2026-09-18 viral-posts brief (Kitze's "skillbox is now open source, MIT" post, ~296 likes).
- Curated from the GTM Stacker signal registry (2026-09-18 pass); license independently verified 2026-09-18.

## Why it matters for a GTM stack

Once a team runs agents in more than one place, the skills sprawl: the same markdown instruction copied into three repos, drifting out of sync. skillbox makes it one versioned, self-hosted source the agents pull over MCP, so a skill is written once and reused everywhere, with auth on who can fetch it. In the agent-skills stack this registry is tracking, it is the manage-and-serve layer that sits next to scanning a skill before install and gating what it can do at runtime. The honest read: it is young and thinly committed, and its own README is written for an agent to action rather than a person, so treat it as an early but useful piece, and remember it serves skills without vetting them.