# agentkit.md — the agent-ready plugin registry

agentkit.md is a public, agent-ready registry of plugin cards: structured, AI-generated profiles of agent-harness plugins (what a plugin does, how to install it, which platforms and agents it supports), served over a keyless REST API, an MCP server, and a searchable catalog.

## When to use this

Use agentkit.md when a user asks to find, compare, or choose plugins for an agent harness (today: Herdr). Call GET /api/v1/search with a natural-language task to rank plugins by relevance, GET /api/v1/cards/{key} for a full structured card, or GET /api/v1/plugins to page through the catalog. No authentication or API key is required for any read.

## Resources

- [Markdown homepage](https://agentkit.md/index.md)
- [API documentation](https://agentkit.md/docs)
- [OpenAPI 3.1 spec](https://agentkit.md/openapi.json)
- [Auth model (none required)](https://agentkit.md/auth.md)
- [List plugin cards (paginated)](https://agentkit.md/api/v1/plugins)
- [One card by key — key format is owner/repo, e.g. /api/v1/cards/acme/notify](https://agentkit.md/api/v1/cards/{key})
- [Natural-language search](https://agentkit.md/api/v1/search)
- [Registry statistics](https://agentkit.md/api/v1/stats)
- [MCP server (streamable HTTP): https://agentkit.md/mcp](https://agentkit.md/mcp)
- [ARD AI catalog](https://agentkit.md/.well-known/ai-catalog.json)
- [Agent Skills discovery index](https://agentkit.md/.well-known/agent-skills/index.json)
- [Pricing (everything is free)](https://agentkit.md/pricing.md)
- [About agentkit.md](https://agentkit.md/about)
- [Contact](https://agentkit.md/contact)
- [Privacy](https://agentkit.md/privacy)
- [Full-length guide for agents](https://agentkit.md/llms-full.txt)