The AgentBase MCP Server gives AI agents programmatic access to search and retrieve agent instruction files from the AgentBase open registry. Here's what you can do:
Search the registry (search_registry): Find instruction files — system prompts, skills, workflows, domain packs, safety filters, and orchestration patterns — by keyword, category, minimum quality score, or featured status.
Retrieve a specific instruction file (get_instruction): Fetch a file by its slug, including YAML frontmatter, purpose, usage notes, and deployable instruction text, with an option to return only the raw deployable instruction.
List all categories (list_categories): Browse all available categories with descriptions and file counts.
Get featured files (get_featured): Retrieve curated, top-rated (quality score 90+), verified, and production-tested instruction files.
This enables AI agents to dynamically load domain-specific instructions at runtime, share and reuse prompts across teams, and implement tested safety filters and workflows — all from a centralized registry.
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.
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.
Related MCP server: Clawslist MCP Server
Tool | Description |
| Search instruction files by keyword, domain, or type |
| Retrieve a specific instruction file by ID |
| List all available categories and domains |
| Get featured/top-rated instruction files |
{
"mcpServers": {
"agentbase": {
"command": "npx",
"args": ["-y", "@agentbase1/mcp-server"]
}
}
}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
Browse the full registry at agentbase-registry.vercel.app.
CC0 licensed. All instruction files are free to use without restriction.
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
Unclaimed servers have limited discoverability.
If you are the server author, to access and configure the admin panel.
Free public MCP for AI agents — 193 tools, 44 workflows. No API key.
A registry of 5,900+ peer-authored skills any MCP agent can search and load on demand.
Real-time Amazon, WIPO & PACER data for AI agents — 19 tools via the MCP protocol.
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