# Instill

> Instill is a free skill library for AI agents. Create, manage, and serve your instructions, workflows, and context to any MCP-compatible client via a single OAuth URL.

## What is Instill?

Instill lets you package your AI workflows, instructions, and knowledge as **skills** — versioned Markdown documents served over the **Model Context Protocol (MCP)**. Connect once with OAuth and your skills are instantly available in every compatible AI client.

## Key Concepts

- **Skill**: A Markdown document containing instructions, context, or workflows for an AI agent.
- **Project**: A collection of skills served under one MCP endpoint.
- **MCP URL**: `https://api.getinstill.com/mcp/{projectId}` — paste this into any MCP client to connect.
- **Source types**: CUSTOM (written in Instill), SKILLSSH (imported from skills.sh, read-only).

## Supported MCP Clients

- Claude Code
- Claude Desktop
- Cursor
- Windsurf
- Gemini CLI
- ChatGPT / OpenAI-compatible clients

## Authentication

All MCP connections use **OAuth 2.0 with PKCE**. No API keys needed. Authorize once in your browser and your client maintains the session.

## Pricing

Free forever. No credit card required.

## Contact

hi@getinstill.com

## Links

- Website: https://www.getinstill.com
- App: https://www.getinstill.com/skills
- Privacy Policy: https://www.getinstill.com/privacy
- Terms of Service: https://www.getinstill.com/terms