2Brain

Second brain for projects, knowledge, and encrypted secrets — keyword + semantic search, AI Q&A, and an agent-native MCP interface, running permanently on $0.00/month edge infrastructure.

Open Knowledge Graph Secret Vault Architecture (SSOT)

Core Capabilities

Plaintext Source of Truth

Plaintext Git Markdown and standard SQLite approved by the US Library of Congress for perpetual preservation.

Zero-Knowledge Secret Vault

Client-side AES-256-GCM encryption with PBKDF2 (100,000 iterations). Plaintext exists strictly in browser memory.

Agent-Native MCP Server

Native Model Context Protocol endpoint allowing AI agents (Antigravity, Cursor, Claude Code) to inspect runbooks and dependency graphs.

Static Knowledge Graph

Graphify-powered static graph visualization with zero VPS infrastructure cost.