Summary
Connects Claude to AgentBase, an open registry of agent instruction files including system prompts, skills, workflows, and safety filters. Exposes four tools: search_registry for keyword and domain queries, get_file for pulling specific instructions by ID, list_categories for browsing available domains, and get_featured for top-rated content. Useful when you want agents to dynamically load domain-specific instructions at runtime instead of hardcoding prompts, or when teams need to share and version control system prompts across multiple agent deployments. The registry itself is CC0 licensed and browsable at agentbase-registry.vercel.app. Install via npx with the @agentbase1/mcp-server package.
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
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
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →Categories
Registryactive
Packageagentbase-mcp
TransportSTDIO
UpdatedFeb 26, 2026
