CortexaEncrypted Collective Cognition Engine

Your AI agents forget everything between sessions. Cortexa gives them institutional memory that compounds over time — every decision, pattern, and insight encrypted locally, analyzed autonomously, and surfaced automatically in every future session.

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Why Cortexa?

GitHub

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Encrypted at Rest

AES-256-GCM with Argon2 key derivation. Passphrase in OS keychain. Your thoughts never leave your device unencrypted.

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Hybrid Search

HNSW semantic index + FTS5 keyword search, blended with configurable weights. Sub-10ms queries at 100K items.

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Ask Cortexa

Chat with your whole vault: grounded answers with visible tool use, reports and diagrams in-chat, reminders by asking. Runs on a local Ollama model or your own API key — independent of the analysis pipeline.

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Deep Think Pipeline

Expand → Critique → Synthesize. Structured briefs with readiness gates, contradiction detection, and confidence levels.

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Agent-Native

MCP tools for Claude Code, Cursor, Codex, Gemini — including cortexa_ask, so your agents can question your vault. Multi-agent tool orchestration engine. Zero-prompt context injection via .cortexa-context.md files.

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Agent Foundry

Compose hierarchical agent kits — or just describe an idea and AI designs the whole team (entry agent, sub-agents, tools, skills). They think with your vault and build real code via Claude Code or Codex, with per-kit and per-agent token, cost, and output tracking.

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Hive P2P Sharing

Full-sync a personal hive across your own devices, or collaborate on a team hive with server-enforced project spaces — share specific projects to specific hives, gated by per-peer roles (viewer / contributor / admin) and scoped invites. Content encrypted at rest, binary file transfer, cross-user thesis synthesis, auto-published blogs, and a relay admin dashboard with per-project insight.

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Collective Cognition

Background reflection and research ground in semantically-related prior thoughts from your vault. Confidence scores decay over time, flagging stale knowledge. Cross-user synthesis combines perspectives from Hive peers.

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Capture from Anywhere

Global hotkey, CLI, HTTP API, browser extension, Telegram bot (with keyword triggers like "deep research"), MCP. All paths encrypt and embed automatically.