H3 CLI MCP Server

The H3 CLI MCP Server enables AI assistants and LLMs to interact with the Horizon3.ai API via the h3-cli tool, automating security workflows through natural language.

Key capabilities:

• Execute any h3-cli command directly (schedule pentests, query results, check user identity)

• Fetch GraphQL documentation to understand the H3 API

• Run raw GraphQL queries with variables for programmatic API interaction

• Perform health checks on h3-cli installation and API connectivity

• Access pentesting data (weaknesses, hosts, credentials) and generate reports

Integrates with the h3-cli tool from GitHub to provide access to the Horizon3.ai API for security testing operations.

Enables fetching GraphQL schema documentation and executing raw GraphQL queries against the Horizon3.ai API for security testing and pentest management.

1. Click on "Install Server".

2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.

3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@H3 CLI MCP Server schedule a pentest for our production environment next Monday"

That's it! The server will respond to your query, and you can continue using it as needed.

Here is a step-by-step guide with screenshots.