AgentBase MCP Server

MCP server for the AgentBase agent instruction registry. Gives any MCP-compatible AI agent direct access to search and retrieve instruction files.

Listed in punkpeye/awesome-mcp-servers — 83k+ stars.

What It Does

AgentBase is an open registry of agent instruction files: system prompts, skills, workflows, domain packs, safety filters, and orchestration patterns. This MCP server wraps the registry's HTTP endpoints and exposes them as structured MCP tools.

Tools

Tool	Description
search_registry	Search instruction files by keyword, domain, or type
get_file	Retrieve a specific instruction file by ID
list_categories	List all available categories and domains
get_featured	Get featured/top-rated instruction files

Install

{
  "mcpServers": {
    "agentbase": {
      "command": "npx",
      "args": ["-y", "@agentbase1/mcp-server"]
    }
  }
}

Use Cases

• AI agents that need to load domain-specific instructions at runtime
• Claude Code workflows that pull skills from a shared registry
• Teams sharing system prompts and workflows across agents
• Safety filter retrieval for production AI deployments

Registry

Browse the full registry at agentbase-registry.vercel.app.

CC0 licensed. All instruction files are free to use without restriction.

Built By

Chris Izworski — Solutions Consultant at Prepared, former Michigan 911 Executive Director, and AI implementer. Bay City, Michigan.

• Website: chrisizworski.com
• GitHub: github.com/izworskic
• Wikidata: Q138283432