AI Agents · Lesson

Building an Agent Plugin Marketplace

Centralized tool store: publishing, rating, and distributing agent plugins.

What Is an Agent Plugin Marketplace?

A plugin marketplace is a centralised registry where developers publish shareable tools, other developers discover them by searching, and agent systems install them automatically. Think npm for agent tools: publish once, use anywhere.

Marketplace Architecture

The marketplace has four main services: Registry (stores plugin metadata in a database), Storage (stores plugin archives in object storage), Search (full-text index), and Security (signs and verifies packages). All exposed via a REST API.

# Marketplace REST API endpoints:
API_ROUTES = {
    'POST /plugins': 'Publish a new plugin version',
    'GET /plugins': 'List all plugins (paginated)',
    'GET /plugins/search?q=weather': 'Search by keyword',
    'GET /plugins/{name}': 'Get plugin metadata',
    'GET /plugins/{name}/{version}': 'Get specific version metadata',
    'GET /plugins/{name}/{version}/download': 'Download plugin archive',
    'POST /plugins/{name}/{version}/reviews': 'Submit a rating/review',
    'GET /plugins/{name}/reviews': 'Get all reviews',
    'DELETE /plugins/{name}/{version}': 'Yank (hide) a version',
}

for route, description in API_ROUTES.items():
    print(f'{route}: {description}')

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