# Modpack > Working AI setups you add to Claude. Ask in your own words; pay per run, only when it works. US only, 18+. A pack is a working AI setup (method, tools, data) made by a creator or built by Modpack from open-source projects. Modpack runs it in a sandbox and returns the complete result to your agent. Prices are per run, shown before the first run, and charged only when a run works. Every listed pack shows dated evidence labels (rebuilt from scratch, checks passed, tested on cases, used again by people, confirmed by people); a success rate appears only after 20 runs from 3 people in 30 days. - MCP server (sign in once): https://mcp.modpack.egoeimi.org/mcp - Discovery MCP (no sign-in): https://mcp.modpack.egoeimi.org/discover - Pricing: pay per run; $5 starter credit, no card; spend limits $2 a run and $50 a month by default - Add a pack to Claude in one link: https://modpack.egoeimi.org/{creator}/{pack}/add - Eligibility: US residents 18+ ## Start here - [How it works](https://modpack.egoeimi.org/how.md) - [Connect Claude, Claude Code or Codex](https://modpack.egoeimi.org/docs/connect.md) - [Pricing](https://modpack.egoeimi.org/pricing.md) - [Evidence labels](https://modpack.egoeimi.org/how.md): what each label means - [Security and your data](https://modpack.egoeimi.org/security.md) - [For creators](https://modpack.egoeimi.org/creators.md) ## Catalog - [All packs](https://modpack.egoeimi.org/packs.md) - [JSON API](https://modpack.egoeimi.org/api/public/v1/packs): search, packs, creators (OpenAPI at https://modpack.egoeimi.org/api/public/v1/openapi.json) - [Discovery MCP](https://mcp.modpack.egoeimi.org/discover): search_packs, get_pack, compare_packs, how_to_connect - [Asked for, not built yet](https://modpack.egoeimi.org/asked.md) - [Everything in one file](https://modpack.egoeimi.org/llms-full.txt) ## Top packs