Show HN: The Brain – self-hosted workflow runner that calls any MCP server

Category: devtools

Tags: workflow-runner, mcp-server, self-hosted, postgres, docker, cli-tool, python

Score: 6.5/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 5)

The Brain is a self-hosted workflow runner that integrates with MCP servers, offering a Python-based workflow definition, Postgres-backed persistence, and multiple trigger types. Its combination of step types (shell, LLM, memory vault, MCP) and focus on observability makes it a practical tool for automating repeatable tasks with full run history.

Target audience: backend devs, devops, data engineers

Repository: https://github.com/MihaiBuilds/the-brain · Python · MIT

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