Help & support.
A private knowledge base that never leaves your Mac. Here's how to get help with it.
Email a human.
direct · no ticket queueEmail us about anything — a bug, a question about MCP setup, workspace recall, or a feature request. Because Silo Vault runs entirely on your Mac, please don't include any private document content in your message; we can help without it. For non-private questions you can also open an issue on GitHub.
Email support ↵The short answers.
privacy · mcp · recallNo. Ingestion, hybrid search, cited chat, OCR, transforms, the MCP server, and the optional workspace timeline all run on your Mac on the Apple Silicon GPU. Nothing you index ever leaves your machine — there's no cloud, no account, no telemetry, and no analytics SDK. Your vaults live inside the app's on-device container.
Each vault can run as a local Model Context Protocol server that speaks stdio only — no open port. In Silo Vault, enable MCP for the vault you want to expose; it gives you the command to launch the local server. Add that command to your tool's MCP configuration — for Claude Code, register it as an MCP server (claude mcp add, or an entry in your MCP config); for Cursor, add it under Settings → MCP; for Codex, add it to your MCP server list. Once connected, the tool queries your indexed documents on-device and gets cited answers back. No network port is opened and no remote connection is made.
Workspace recall is optional and off by default — it never runs until you explicitly turn it on. When enabled, it builds a private, searchable timeline from periodic on-device screen OCR and optional audio transcription. Everything is processed and stored on-device only; nothing is transmitted. A menu-bar recording indicator stays visible the entire time capture is active, you can exclude specific apps, secure fields (like password entry) are excluded automatically, and you set a retention window after which old entries expire. You can clear the entire history or disable the feature at any time.
PDF, DOCX, PPTX, XLSX, HTML, CSV, Markdown, and plain text parse locally. Scanned PDFs and images are read with on-device Apple Vision OCR via the bundled silovault-ocr CLI — no cloud OCR. Everything is indexed into the vault you choose.
Silo Vault uses hybrid RAG: SQLite FTS5 keyword search fused with local EmbeddingGemma 300M vectors via Reciprocal Rank Fusion, so exact terms and fuzzy meaning both surface the right passage. Your selected Gemma 4 E2B, Gemma 4 E4B, Gemma 4 12B, Gemma 4 26B MoE, or Gemma 4 31B model then writes the answer locally, and every answer cites its sources with page numbers so you can verify it against the original file.
Only for model setup and links you choose. After explicit consent, Silo Vault downloads revision-pinned Gemma 4 E2B, Gemma 4 E4B, Gemma 4 12B, Gemma 4 26B MoE, or Gemma 4 31B chat weights and EmbeddingGemma 300M weights from the disclosed Hugging Face hosts, verifies them, and then runs ingestion, search, chat, OCR, MCP, and workspace recall offline.
It's a per-vault preset for reviewing agreements on-device: risk flags, clause extraction, a risk-scoring dashboard, negotiation-playbook comparison, clause-level compare/redline, and one-click PDF export. It is informational document review only — not legal advice, and no attorney-client relationship is created.
They are coming in version 1.8.0 and are not in the current App Store download. The update exports selected vaults as authenticated AES-256-GCM .silovault archives, verifies integrity and previews naming conflicts before import, and adds exact citation spans, coverage scoring, unsupported-claim flags, and abstention when evidence is weak.